HIGHLIGHTS f cgr:ric tura research Agricultural Experiment Station 7 AUBURN UNIVERSITY ~' /"" $ P*us, - ~~~aa~F 1 ~ ":~~; - ; . : ;::i P-~ ~": " :~jldQ l, :"L~ ~i-1 T g ~;r a y t'l' ~P~ 1 BhX ,r i 5,I" ' .~ ;2~rt9,~~~ DIRECTOR'S COMMENTS AS N'E PLAN\ for tile flltli t ill ag-riCUittlre, sse miust consider tile palst aiid especialls' tile tiarbulent 197:3. Some observ ations that aIppear to b~e part icularai %, gel n i tie to Al Iab1am a all(it its Agricultural Experiment Statioi SYstem ll ae as follos5: (1) Natioiiwside thiere is inlreasedl comllr till prloducittionl of farm and foirest prtodtucts. Prodtucts ar i Icecded to meet thle nieeds tof ouri cotryl, wher on~t te farmier p1uos iii for liisclf and .50 others. Also, sili pro tduicts are n eeded for1 e'xporit ill (I d~er to gain a f avoirable halance (A tralde. B ecauose Al1a1bauma ainid her si st Sotltlicasteri i States pr'ovide the great est pten'ltiiIal 55 lucre iln tle N ation for expandedi pr otduction, there is in-to Ci rast'd respiiisiiiility onl tlis Agricul- 11 ttirlla Experimei i Station for rescarci p 1ii pio(Ilt ttiol aid itmIlark etinig of fillrl t" an~d fore1st pnroduclts. Tiodaiy thle nleci i ftor iiioderi agricultutrlal research fil R.DNIROS cilith's is more important than wheiiRnENI OS I discussed it in this column a year ago. TIhe coinditional 11(11 tion]t~ e)' appll01 t'i ) b\ t' Alaa ma Leg- islatutre aiit Governoi \\ aliace was mo1(st time]\, aiid it is impjerative that this money be mlade asvailable ats solonii s po~ssilie. 2) The energv crunlchi Iiloiighouit thle Nation and excessive p~resstures onu ti e eniIronmulen t il I easi liy poptulatedi and 1(ilt]us'trial ptortions oif tile N ationl mlake tdeselopmneiit of Alabamia's ther na- tural resoturces even moie attractive. This means mtore jobs for peolple, aiid lar ger local marlkets for food auld forest products, but it also pla~ces greater pressuire til the envsironment, and makes de- imandt fo11 serv ices associated wsitht tile good life -good water, waste manlagemenlt sy stems, ultilities, an~d recreational facilities -ever) greater. 'ilke poplari termll "Boral Develiopmeint" takes onl new emlhais~ fo th tle Ex\perimlenlt St ationl. It is at nIath oi al policy to mal~ke rural lsiing mmre attractiv e. The passage by Congress of Ptiliic Lass 92-419, knlown itas thle litlIal Developmenlt Act of 1972, admllinistered thlroutghl the T. S. IDetpartmlent of Agriculture, indi- cate's Conugressitonal support of tile policy. Although USDA agencies swill carrs ouit mlost legislation ftor tilis Act, responlsib~ilities for a pilot research andt Extension program hlave been delegated to tile Land Grant Colleges of 1862. (3) Populationi pressures aiid uirban sprasvl -residenitial lious- inig, commlercdial alnd inidustrial tdesvelopmenlts -have takeni much good agrictulttiral land otl of- prioductitlll. To prevent harmful de- iiiand ts b~einig pl aced oii tellinaiii inig agr icui Ptral areas, land use plan- nilng mutst be ilnitiatetd. It is anticipated that Conigress svill pass a laws dealing swith this ill 1974 . Msost of (is iobject to tilis idea, especi- ailly ill sparseky popullated parts tof tile N ation, incluinig most of Al ailama. btut it is becomniiig illcrea s iiigv esvident that fanmer s need plrotec~tionl of laud use plianinlg as tile) planl for tile future. Ili simniarY thle Alahamna Agriculttural Experiment Station is planiiiiig a research pitogIamn not toily directed towvard solving p~roblems of prtodulctitonl mlarketinig, anld processing plroducts oif farm and forest ftor ctonsliners, btut also pros idiiig research informationi that is iieeded for soundlt rural dev elopmnt and lanld tuse pilannling that wsill enstire the colntiliet productisvity of aln ahuildalee of agrictultuiral p)rtoducts aiit at the samre time piosvide gtiides for bet- telIiinig iii rur al as wsell as Utrba A,1 l abama. "4 we c4et'eod~c... E. XX ~\ Mct \ i N , assoc11ite professor50 of A gic1ulturatil Etionolicns awd Rural So- ciologv. Di. Mco saiaieof Sparks. Nev ada ai earnied the B.S. and( M.S. degrees fromi tile Unis i- sits' of Nev ada. He earI~ tile Ph.D. from tie e n versits' of Teiiise i 1966. His prinipal fiel I of specialization asagl cultural economis Hk unldergraduate mjinr general agriculture wvith it Ii I 01 iii agriCUltural econ oi cs. is gradluate mi ajor wi 5as iii agricui ltu ral eo nomtics wtithi a rrinior ill statistics. H is Inajtor areas at Aubiurn1 I are e'onotmetrics alit re'source economi~lics. Dr. Mt.Cov teaches undergiradiiate aiid gradulate lev el courses at Aubuirn and is currently doing research work oil econti mnetrics and ruLral dev elopmieiit includiiig recreationl anld ajulactilture. A story oii at phase of his researchI program is lea- tured on page 3. Before comning to Athuni- ill 1967 Dr. MicCoy wats all assistanlt prtofessor at Arkansas State College. Since coming to Auburn sI-. \IcCov has authiored immn erous resear ch publllicationls and articles. He is a. membler of Phi Kappa Phi aud Xlplla Zeta. litill ,oii c is. HIGHLIGHTS of Agricultural Research SPRING 1974 VOL. 21, NO. I A quarterly report of research published by the Agricultural Experiment Station of Auburn University, Auburn, Alabama. 13. DENNIS ROUSE D)irector IRVIN T. OMTVEnT -Associate Director Cwxs. F. SIMMONS ----- Assistant Director T. E. CORLEY ---------Assistant Director E. L. MCGRAW --------------- Editor R. E. STEVENSON ------- Associate Editor Roy ROnEisSON --- Assis'tanlt Editor Editorial Advisory Comm11ittee: IuRsIN T. ONMTN EDT; JOHN LA-W ENCE, Professor of Fisluties and Allied Aqjuiacultures; 0. L. CHAMBLu,5, Associate Professor o~f Horti- culture; H. S. LAROSEN, Associate Pro- fessor of Forestry; AND E. L. NWcRAss. Auburn University is an equal topportunity' emlo iyer. ON THE COVER: Marinas such as this are being seen more and mare in Alabama. See stary on recreation research, page 3. More marinas as at left and camping sites, right, are coming into prominence in Ala- CAMPING, OUTDOOR RECREATION and PARKS bamao as a result of increased research on outdoor recreation. as RELATED to EVERYDAY LIVING O ( 11l))011 111,A1 AlIO it tl stCS V.irtti- ally everyone. Until recentix , lowever, outdoor recreation was primarily at priv- ate concern. So long as America was predoininately rural, open space xxas full>' v available. People swain aiid fished in the creek, biunted iii the woods, and plax ed ball in a 1 )astllre or xvacant lot. With in- creased nil taniiz'ationi ai d the loss of opein spaice, 1 n oxixioti of' outdoor recreationi serices becalme it conicern to goxerni- im en t al atnd otlcir ageincies. Recoginition of this trend led to the creatioll of the Bnreau of Outdoor Recreation, xhich coincided xxith a federal grant piogram to assist state and local governments in providillg outdoor recreation opportun i- ties. In order to establish and maintain eli- gibility for federal grant funds, each state is ieqiiired to prepare and update a corn- pireliensive out door recreational plan. The Department of Agricultural Eco- iioinics and Rural Sociology at Auburn Un iversitv Agiricultural Experiment Sta- tioni under contract wxith tie Alabama Department Of Cornserxvaton alid Na- tiral Riesources has prepared and up- dated tie plan. In 1967, the first update of the plant x\,s completed under the directioni of J. H. Blackstone. This plan outlined Alabauna's responsiility il out- door recreation. Subsequeitl , 17 spe- cialized studies ou outdoor recreation in Alabamna have been completer. A sum marx of tIle 1970 recreation plan is axvailable in every library xithin the State. Research must be dole coiitiiiu- ousix , however, because tie situiation changes in a dynamic fashion. The chanlgilig nature of iecreatiollal reseairh call be demonstrated by tile ill- pact of energy shortages Oil recreational actixities. Sales of motor homes, xhici E. W. McCOY, and C. L. VANLANDINGHAM Deportment of Agricultural Economics and Rural Sociology represe'tnted at groxtli industr-Y, plill leted after the adxvent of gas shol(rtages. Rlecreationad participation is extremelx xvolatile since tile range of activities is liaige attd choices cail lIb mae almost iii- still I till sly . Campinhg research financer by univer- sitxv fundls has Ieeti iii progress for inanlv xeals. Publications are axvailable indicat- ing tile costs of providing caIllping fa- cilities and factors to consider in locating at cailljpgoriiid. Studies of camper ino- tix ations and expenditures ai e plresently urlerxxay. Study of additional recrea- tional facilities illuhiding golf courses, mairillas, and recreational use (f forest latidis are also il progress. Each of these stiidlies is desigiied to enhance recrea- tional enjoxymient Iv proxidiiig iiuforria- tioli for the impirovement of recreatioiial facilities. A long-term project measuring the im- pact of large scale investmilets in rec- reational facilities is also uilnerwax. Pre- limilary studies indicate that investments in oiie area of Alabama result in in- creasei illome in inany areas of the State. Further study may indicate that the returns from recreation exceed those (f small inrustry iii termns of jols and income to the local aiea. Recreational research, like much of social science study, deals wxith the "hu maii factor," a colsideratioti which com- plicates the process. Hovever, in recrea- tioii research, xvhich is partially designed to plit for tile future, such subjective itiformation as peopie's goals and values callnot be ignored. For example, is the fpresent xvadue placed oil outdorr recrea- tioii likely to be altered and if so, xhat socioecoliomic atnd societal factors will liaxe iifluetnce? The most productive ap- piroarIh iii recireational researci involves illiltirliscipliiiary studies. For exanple, agr iculturiial ecno111 ists xxwho are inteir- rxtcd iii costs antd retuns collaborate xxith inlal sociologists xvho consider so- rial and iemogi alhic factors. Such at bleiiding of the expertise of sexeral dis- ciplines produces ilore useful research filndi ngs. The cud proruct of any researcl should be solutiotns to the problen tiat inistigated the study. While all ottdoor ecreatioll prollems aie not solved and ilalx may require a shift itt priorities. tangil)Ie results are presently axvailable. After languishing for many years, there his been an extensive buinliiig ptoginam go ing on iii the State parks of Alabama. Several new or completely renoxated1 piarks have been opened to the public lhiriing the last few xears, including Gulf Shiores, Camden, DeSoto, Cheala, Oak lountain, Joe Wheeleir. Lake Gunters- xille, and others. Mlany local govern- ments have upgranded recreational facili- ties in tleir jurisdictions. The lenderal Govern ment is increasing the lumller of' recreatiotial sites aroutini reservoilrs and xx ithiii the National Forests. The State is moving to increase the availability of hultilig and fishilg areas xitlin the State. The research at Auburn is directly re- kited to tie increase of recreational fai cilities il tile State. As illcome and leis- ire time continue to itlcrease, so slall demand for outdoor recreational leeds. goxx tl and dev elopmnt. Iii adIditioni to affecting v egetatixve gr ow\th, it also( resl itedl ii dIifleren ces in repeat 1bloim, fru it qulality, aind apple Yield1. Growth Affected \getatix e groswthi wxas suippr essed by bothi tile 2,000)1 aid 4,000) ppm. ailar treatmnllts iii 1971. in 1972, howevcxer, the cllernical treatmen t hadI little effect because of a rainl that occurr~ed approximate]ls 3(0 minutes after tile spray wxas ap- plied, as shown ii h the f(o1lowsinig dlata: Treatmen t Untreatedi 2,000( ppm. alar- 4,00)0 pal. alar Chemical Regulators Affect Growth and Fruiting of Apple Trees W. ALFRE-D DOZIER, JR. Dept. of Horticulture E. L. MAYTON and WALLACE GRIFFEY, Piedmont Substation A XIA}Ois PIIOBI 1 l Cltitred ill iapple production iln Alallalia is excessixve N c(getative groxx tli oil x ouiig trees. The pirolblem xx th this eConditioni is that it makes trees sloxx to colIne in~tol fruit pro lductionl. If ve(getatixve groxxthi could be supp 1 ressedl and flower c hold( formlatinl iiiduced, the trees xvouldr he easier to mianage anid thlere xxu 111(1le both eariher aild hieaxier frulitinig. Chemical Regulators Tried hPossible use of ch einicil 1reglat ors to co1n1tir(l gro'sx th ainid alter fruniting characteristics of aipple trees has Ireceived coil- siderable attenitionl ill recenlt years. Oiie of the mnost pron- ising oIf these reglator s is alar ( silcellic acid 2, 2-(Innethix I- hydrazide) . It hlas gTivell initerestinlg results ill recent year Anubul 11 Unixveisity Agricultural1 Experimient Station tests at the Piedioiit Substatin, Caiiip I till. Fohiar spray of alal xxas app 1 iedi at rates of 2,000~t, and 4,000 ppm,21 dlays after petal fall, tol 7-vear-nlrl 'Wellspur' Red Delicious apple trees in 1971 and 1972. CJomparable trees xxere left untreated for comparison. Twxo trees xxerc used for each treatment p~lot, a01( each treatiment rate was repeatedl six thies. Five shoots per tree xxerc meaisured( andir tagged I day be- fore treatmnit. (Shoots of equial length xxere tagged for each comparisonl.) The shoots wxere meaisured 2, 4, 6, and 15 xweeks alter treatmeiit to detei mile hoxw alar affected fruit qulality alnd repeait 1)1111m. Alar spray xwas 11111 il toi iflect sexvcra11 aspects of apple Shoot growth after 15 weeks 1971 1972 55.8 in. 56.4 cmn. 25.2 ern. 49.3 (01. 18.7 cmn. 4.:.3 cmn. The reductioni in v egetativ e giroxvth resulted from alar sop- pressing cell elongation in) the internode region of the shoot. As shown ii Yx olbservationi, treated shoots had as many leaves as nonl-trea te d, but ithfe 1eaves were (loser tolgethe fiIollowsI ing alar spraying. Since the alar treated trees had the samne ni her (If leavecs, they prohabx liv hd ablout the samne photos,\,])- tlhctic capacity as 11011treatedl ilis, Quality Factors Influenced Sprin g wxith alar 1(both 2,t000( and 4,090 ppm.) ii- creased fiuit firimiiess dIecreasedl the plercentage of soluble solids, and reduced size (It apples. It had little (ffect on the percentage of red surface color of' the apples, howvever, as evidenced by data inl the table. The increased fruit fi iess and ireduced soluble solids in- (lhcated that fruit ripeninig xx as (lelax 'ed by alar spray ing. If the treated apples we re left on the tree long enough to reach the samne natmn itv as holl treated frunit, thlen the pcercentage of red sulrface co;lor wxould have heein increased. Blooming, Yield Increased A higher propor tioii of' fruit sp)ins bloomed in spring fol- lowinjg alar treatnits than oilno1111tieated trees. The per- centage of ~2i.or longer spurs that hloorned in spring axer aged 2:3. 1 for non-treated, as compared xvithl 82.9 and 86.5%, respectively, for 2,00t0 and 4,00t0t p.p.m. alar. Apples per 100 fruiting spurs 112 iii. or longer xvere coun~ted after the julle, drop. The aver age \\as 90.3 an d 89.3 for thle diar treaited1 (2,000 and 4,009 pp.1. ) treces, but only 29.0 onl noli treated. Thus, the number of apples pci 100t firuitinig spurs closelx- paralleled the percentage o~f spurs blooming. These fiidiings indicate that alar's effect (In fruit set is a reflection of its ill- fluence on repeat bloomn. After the June drop, fruit xwas thinned by hand to spaice the apples about 4 to 6 in. apart onl alar treated trees. Non- treated trees did not need to be thinnled. Both the 2,00t0 andl 4,000 ppm. alar treatments inicreised fruit y ield. Amnount harvested averaged 54.8 lb. fromn ion-treated trees and 68.8 and 8(0.5 lb. eachl for the 2,0t00 and 4,t000 ppm. treatlullit rates. FiFIr ol 111 A\ iio\ FOLI r QC1Al uS OF 14'.1 DLi iicious A\i'l'l s 'Mar 2,1000 pp.1. F'irmness Pet. siliiblo Size, ill Pet, red - r illig - -- so)lid s- - - - Coloir - 1971 1972 1971 1972 1971 1972 1971 1972 17.2 17.3 8.4 8.5 2.S-2 2.89 81.6 6 8.-6 2L f 21 .0 8.0i 8.0 2.61 2.61 90t) 1 56. 1 21.4 21.1 8.0) 7.9 2.56 2.56 8 6. 2 52A REPIRODUCTII PROBLEMS CallSe serious losses in dairv herds. It is common in many herds to cull about 10% of the cows and heifers annually because they fail to reproduce. It is possible to induce lactation without pregnancy by injec- tions of progesterone and estrogen. This is often desirable in aninals that have been highly productive or heifers that show promise of being outstanding producers. Normal udder development and milk secretion depend largely on anl adequate supply and proper balance of hor- mones, mainly estrogen, progesterone, prolactin, and soma- trophin (growth hormone). It has been known for many years that lactation may be induced in non-pregnant cattle by a schedule of low level estrogen-progesterone injections over a period of 6 to 9 months. However, this prolonged procedure is not practical for use by dairymen. At Auburn University Agricultural Experiment Station two honnone treatment schedules were used to concentrate the dosages of estrogen and progesterone, in order to bring non- pregnant cows and heifers into milk production during an academic quarter. The purpose was to provide students in "Physiology of Lactation" with an effective example of hor- mone induction of lactation. In schedule one, Estrogen- (Repositol diethvlstilbesterol -DES) -75 mg. per week for 4 wxeeks, \\as injected subcutaneously in :3 equal doses of 25 mi., :3 daxs of each week. During the 5th week DES level was doubled to trigger initiation of lactation. Progesterone (repositol form) - 750 mg. per week for 4 weeks, was in- jected in 3 equal doses of 250 mg., 3 days of each week. This hormone was not injected the 5th week. In schedule two, twice daily injections were made for a 7-day period. Each injection consisted of: 1. Estrogen - 30 mg. (60 mg./day). 2. Progesterone - 75 mg. (150 mg./day). The hormones used were of the repositol form and injec- tions were made subcutaneously. The estrogen hormone used for most animals was diethylstilbesterol (DES). However another estrogenic compound, estradiol, is effective and has been used successfully. As the udders developed and showed evidence of milk secretion, milking was started. Under Schedule I this usuallx was during the 6th week after injections were initiated. Unde Schedule 11 milking usually was commenced about 14 daxs after the first injections. Unlike natural lactation, the level of milk flow was very low initially, but increased slowly to a peak within 4-6 weeks after milking was started. LEVELS OF IlIiK PRODI)UCTION OF lYPICAL ANISA.\IS UNDER THE TWO TREAT1MENT SCHEDULES "t ilif ftf Tation, In No0n- PCg lant (;Cattic K M. AUTREY, J. E. LITTLE and G. E HAWKINS Dept of Animal and Dairy Sciences hile data in the table show ls Icls of milk productionl of typical animals under the two treatments. Results of these treatments and similar studies at other stations have shown that: 1. About 60-70% of the treated animals can be brought into milk. 2. Heifers are more responsive than cows. 3. Level of production may be in the range of 50-70% of that of a normal lactation. Under these short-term treatments there is not adequate time for full development of the udder. 4. Milk composition of treated animals is normal. 5. The treatment does not solve reproductive problems, though some problem animals may conceive and reproduce after treatment. 6. Estradiol apparently is as effective as DES for initiating lactation. Thus, since the use of DES is banned by FDA, estradiol ma\ be used, since blood and urine levels of estro- gen drop to normal in 10-20 days after completing injections. Thus there appears to be no human health hazard involved in using milk of treated animals. Precautions and recommendations: 1. Treat only open, non-lactating animals. 2. Treat only healthy cows that have no apparent infec- tions. 3. Separate treated animals from the rest of thile herd until after treatment is completed. 'F: -~.~8u:- ;, ~ 4 Days in Cow no. Age yr. milk Milk produced (lb.) Total Av./day Schedule I. Injections through 5 weeks. 219 6 305 11,248 277 3 305 10,700 320 21/ 107 4,182 493 8 153 7,680 Schedule 11. Injections through 7 days. 327 2'2 1:33 3,942 508 13 305 16,450' Projected 305 day total 9,7, 12,6(0Y 7,290 'Continued milking 5 additional months at an average level of 28 lh. Av. of 5 previous lactations for cow 493 was 19,812 lb. milk, 305-day basis. 'Av. of 9 previous lactations for cow 508 was 19,037 lb. milk, 305-day basis. The cow shown (top) had lactation initiated April, 1973, using schedule II. The photo was taken in June, 1973. The heifer shown (bottom) had lactation initiated in the summer of 1972, using schedule I. The photograph was taken one year after initia- tion. - ~ ~ -Healthy deer, like the 4%, eight-point buck shown in this picture, ore greatly * dependent on the variety 7 and abundance of year- round food supplies. In this study, Japanese hon- eysuckle's value as a food source for deer in pine forests is investi- ~ ~ gated. ""A Honeysuckle As A Year-Round Food For White-Tailed Deer In Southern Pine Plantations M. KEITH CAUSEY and JOHN SHELTON Department of Zoology-Entomology TIRE' AS BE EN inceasinig concern in pine stands of the "Southi's Thir(1 Forest' wxill not produce the variety .y and ab~un- dance of food plants necessars- to sustain an abuntdanice of (different wxildllife spce on a ' year-rouind~ basis. It is getierally acknowxledged that as the dliversity of the forest is (decreased, the (lixersity of ani- mial life inihabitinig the forest "also wvill decrease. This dloes not precludle the existeT ice iol cotsiderable i ubers of anx gix (1 specie(s inii eu-aged I 1(11o(til tures. Whlite-tailed (leer are adlaptab~le to mnany envxiroinental conditions anid may do well in areas intensixvely managed for pinse pulpwoodl and saw timber. Howxever, the axvailability of adequate foodre sourices ini purel( pline stands of certain ages and at certain times of the year may be critical ev en fon (leer. Japanese liotiex sllkle groxws xvell in pine forests of Alahbima anid is one of the most important plants ini the (diet of southern wh ite-tailed (leer. It is an ever- green wxith leaxvcs that remain nutritious throughout thle y ear. Honesustckle is also eaten 1)x ihbits. tiirke~s, qluail arid other species ofxildf, 6 WVildllife researchers at Auburn Uti- x ersity recently invxestigated the value of honey suckle as a xear-rouitd food re- source for xxhite-tailed (leer iii a planted pine liahitat. The stud lx area in Talla- (dega Coutity xxas ititetisively matiaged for pine pulpixx 111( and saxxtimiber andl contained a minimum of mast prodlucing hardxwoodls. Slonevsuckle occured ua.tull x inI the iinderstorv of the area StUdied mid cox- ered alproximately 44% of the forest floor. This planit was by far the most important food item in the xyear-round dijet of thel('leer. Of tile total voiiioe of \x Odx b~rowse consumed l)V(leer. hoi j(,\ suckle in nuited to .55% io the sprinig. 54'7' ini the summer, 83% iio the fall, and 71V" iii llI( xx itter. This paticular area supported a white- talel(d (leer per 7.3 acires of laud. Oxver '3501 deer killed on this area duiring the stldv perio(1 were examined to (leterile their e'stertnal phi'ysical conijtion and] antler (lexelopment. Femiale (leer were collectedl anld checked for1 rep)roductiv e rates based upon the number of' emb~rx- os per adult female. The volume of data collected indicated the deer wecre being mainitainedl in good physical con- (dition and reproducing at an excellent rate. Antler development of the male (leer was comparable to that (of (leer from other areas of Alabamia. The availahility and utilization of jap- .11 ose honexysuckle wxas considered the pr1imue reason for the high popu~lations and general wvell being of white-tailed deer iii this forest which was managed pri- marily for pine. The importance of 1grasses anid other herhaceous plants in numerous openings onl the study area undoubtedly contributed significantly to the carrying capacity of the area. Honeysuckle is a shade tolerant species aind grows well under pine stands. It has long beer) cited for its wildlife value and can be planted and propagated under a x arietx of forest condlitionis. Honeysuckle can become a nuisance undl~er certain conditions, but it call be controlled xwith silx icultui al. techniques such as pre- scribed burning. Honex suckle has the potetntial for great]\, increasinig the carry- ing capacity of pine stand~s for deer and many other species of wxildlife. SEASONAL FOODS A-,tOCN INC T10 2 ott Mone PEn1 CENT (IF THE Yi 511-ROUND DIET OF 33 WHITrE-'TAnLED DIE CoLEtI ' 'D 1)10\1 ruL At An 5515 Anix~i Axtxt( NilION P~LANT, CHILDERSacne., ALABAMtA, Bi rxxVFt. OCItOBER .31, 1971) ANt) "xliwi 2~ 7, 1972 Food itein Spring 0cc. Vol . Pct. Pct. Stinrer (1cc. Vol. Pct. Pect. Fall 0C.C. Vol. Pct. Pct. Japaniese honeysuickle (leaxvcs, "tcrms) - __- 1001.0 39.9 10)0.0) 2:3.4 100.0lt Bllackberry (leaxves. stems) .1010.0 7.5 40.0 2.6 64.3 Flowe (rinlg dogxx(od (leaxves) 210.0 (0.2 7.1 Creenllriar (leaves, stems) 510.0 2.A 60.0 4.6 21.4 Vi Ine ed sumnac (seed) .35.7 Oak (acorlm) 20.0 1.8 28.6 Ci ab-opple (fruit) --------- 14.3 Wil 111 lickcherry (fruit) --- 40(1 12.6 \loscaiiie (fruit) ------ 40).0 11.2 7.1 Gra.sec, 100.1) 9.8 80.0 3.2 85.7 Mtush rooms 25.0 -.3.3 811.0 7.6 71.4 Winter Weighted average 0cc. Vol. 0cc. Vol. Pct. Pct. Pct. Pct. 1111.0 52.7 10(0.0 49.4 511.1) 3. 7 60.6 2.9 50O.0 7.8 21.2 2.5 40.0) 6.4 27.3 5.2 40.0 6.4 27.3 2.9 :301.0 1. 3 15.2 4.0 6.1 2.4 6.1 1.9 9.1 1.7 910.0) 6.9 87.9 5(0 411.1) 2.1 57.6 3.9 The remaiing 18.2'; of the ve(ar-rou ni diet of the dleer was furnuished by plants averag- ing less tliani 2', of the total y carlx' xolumie. HOW CONSUMERS have BENEFITED from INCREASED PRODUCTION J. H. YEAGER, Department of Agricultural Economics and Rural Sociology MOST CONSUMERS take for granted the many food items on supermarket shelves. Many of these items were not in exis- tence 10 years ago. However, in the past several months, when some items disap- peared and food prices showed substan- tial increases, consumers became more concerned. Consumers have a real stake in a pro- ductive and prosperous agriculture. In the latter part of 1973, and even today, questions are being raised about the ca- pacity of American agriculture to pro- duce enough to meet both domestic needs and the export market. The re- sponse that producers make to new prices, costs, and shortages, and a new government program will tell the story. Increased Production The U.S. system of agricultural pro- duction has been the most fantastic in the world. It has provided an abundance of food and fiber at reasonable costs. Since 1967, farm output has increased 11%. Based on 1972 data, the produc- tion of cotton lint and cottonseed in- creased 81%, oil crops 29%, and sugar crops 39%. Yet increases in food grains and vegetables were only 1% each, and dairy products 2%. As has been generally true over the years, increases in total production were achieved with fewer acres of cropland harvested. In 1950 there were 345 mil- lion acres of crops harvested compared with only 296 million acres in 1972. In 1972, about 1 acre of land per person was used to supply domestic needs while 2 acres were required in 1950. The higher production per acre in American agriculture is a major achievement. Ap- plications of scientific and technological advancements, that in a large measure came from research and educational ef- forts, were responsible for yield advance- ments. Improved Efficiency Associated with increased yields per acre and per unit of livestock has been the growing efficiency in agriculture. In other words, output per unit of labor, fertilizer, seed, feed, etc. has increased. According to the USDA index of farm production per hour, there has been a 48% and a 43% increase in productivity for dairying and poultry, respectively, since 1967. The index of farm produc- tion per man hour increased since 1967 for all catagories, with the smallest in- creases in vegetables, fruits and nuts, and tobacco. Changes in production, farm, and re- tail prices of broilers for Alabama during the past several years are indicated in the table. Production has expanded despite BROILERS: PRODUCTION, PRICE, AND GROSS INCOME Year 1950 --- - 1955 -------- - -- - 1960 - 1970 - 1971 --- 1972--------- Number produced' Thous. birds 13,114 57,764 176,654 285,077 376,112 384,347 399,274 Price received' Cents/lb. 27.0 24.5 16.2 14.3 12.2 12.6 13.1 Gross income Thaus. dol. 9,560 43,872 91,577 138,604 160,600 169,497 188,298 Retail price' Cents/lb. 59.5 57.4 42.7 39.0 40.8 41.0 40.9 Per capita consumption 8 Lb. 8.7 13.8 23.4 29.5 37.3 87.2 39.5 'Alabama. 1 U.S. average for frying chickens. I U.S. broiler consumption. the decline in prices received for the product. Efficiencies in production were responsible in a large measure for the expansion of production at lower prices. The consumer benefited from the gains in efficiency of production. When farm productivity grew sharply in the 1950's, food was plentiful and some products, particularly grains, were in surplus. In no other country but the U.S. have consumers been able to buy their food with less than 16% of their disposable income. Consumers have also had great variety in selection of various food forms, sizes, shapes, and degree of preparedness. Again, increased production and the in- genuity of processing, packaging, and merchandizing together with the appli- cation of science and technology made all of this possible. American consumers are also able to exercise their choices for various food items over many more months of the year than was possible at one time. Im- provement in harvesting time, packaging, transportation, and storage have ex- tended the traditional season for food. Exports Grow With growing demands for feed grains and food on the part of foreign nations, exports increased in the 1960's. The U.S. then spent beyond her means overseas and realignment of currencies resulted in devaluation of the dollar. Through in- creases in agricultural exports in recent years further devaluation was avoided. Foreign made products would be consid- erably more expensive if further deval- uation had occurred. With the changes and events of recent months, agricultural producers and agri- business firms find themselves in a new ball game. Unstable agricultural prices, changes in the structure of markets and trade, shortages in energy and certain other inputs, as well as inflationary pres- sures will cause continued consumer con- cern about food. -- Is Fertilizcr Niro cn nl EnvironcnirAl P'ollutant? fertilizer N (nitrogen) to be a threat to \\-ater quality and hulman health. They associate the t itrate occurring in mlany water sources with the ten-foldl increase in use of fertilizer N during the past 20 years in the Uiiited States. Farmers, how- ever, see fertilizcer N as essential to eco- tomic crop production. Nitrate in ground water is not a new probllem. Streams antd wells in the prairie and semi-arid regions often have high nitrate contents. The fertile soils of these regions have released abutndant nitrate sitnce first cultivated. Nitrate be- comes concentrated in ground water by evaporation of soil moisture and limited rainfall or irrigation. In the Southeast, however, soils of low organic matter coiintets release little N and a humid climate provides great dilution of nitrate in ground w ater. Crops seldom utilize all of the fertil- izer N applied. Actively growing sod crops are most efficient, but recovery of applied N by row crops frequently is only about 56%. Since plant roots do not permeate all of the soil pore space con- taining fertilizer N, some N is inaccessi- ble. Nitrogen in the soil solution moves into or out of zones of root absorption. In addition, gaseous losses of N may ac- comlpany changes in chemical forms of fertilizer N in the soil. Some fertilizer N will wash off cropland, but research shows extreme conditions are required for appreciable loss. Most fertilizer N is so soluble that it dissolves and enters the soil readily with water. Losses of organic N by soil erosion have been historicalh more significant than wash-off of fertil- izer N. Trends begun in the 1930's toward concentrating intensive cultiva- tion on level land and maintaining slop- ing land in pasture or forest are reducing erosion losses. Experiments xwere begun in 1969 to determine the rate and extent of nitrate leaching in both cropped and bare soil. Field plots were established oit a level area of Lucedale sandy loam in Coastal bermudagrass at the Foundation Seed Stocks Farm at Thorsby, Alabama. One set of plots was irrigated as needed for maximum growth, a second set was not MOVE:I:ENT OF NII'HAtE IN LUCEDALE SANI)Y ]A)A AND) (ECOVEIRY OF N APPLIED AS SO))tUM NITIATE TO COASTAL BEIiMUDA(IGRASS Zone of Rainfall Recovery D)ate max. and of nitrate irrigation applied In. In. Pet. Coastal, no irrigation Apr. 29 6-12 4.5 June 4 6-12 9.5 7 luly 8 12-18 13.2 18 Sept. 9 24-30 22.5 37 Feb. 13 36-48 41.0 Coastal, irrigated Apr. 29 12-18 5.9 June 4 24-30 17.2 9 July 8 24-30 26.3 23 Sept. 9 -.. 36-48 42.0 41 Feb. 13 - 18-60 62.1 No crop, irrigatel Apr. 29 6-12 5.9 June 4 24-30 17.2 July 8 30-36 26.3 Sept. 9 36-48 42.0 iirigated, a' d a third set was ilXitagted Iut kept without plant growfth by use of herbicide. Sodium nitrate (NaNO 3 ) was ,tpplied on all plots in March at 1,200 lb. \ per acre. While this is several times the rate that would( be used in practice, it facilitated measurement of nitrate lmovement and uptake. Hay was har- \ ested four times during the season and total N removed was determined. Soil in each plot was sampled initially and at intervals during the spring, summer, and \ inter, using a ixhydraulic coring machine to provide soil samrnles to a depth of 8 ft. for analysis. Ammonium, nitrate, and organic N were determined in 6-in. seec- tions of soil to 3 ft. depth, then in 12-in. sections to 8 ft. Results in the table shosw nitrate to be relativelv stable in this situation. There was no evidence of tie-up of added N in organic forms in soils. About 40% of the applied N was removed in forage and lost of the resi1dual N was accoUnmit for as nitrate xwithinl the soil profile. Zones of ititrate concentration mno\t(e progressively deeper (see figure) with rainfall and( irrigation, averaging about I in. per inch of water. Even with this single excessive application and after nearlI a year with 62 in. of xwater, the nitrate had not left the profile or enltered the ground water. The doxwn- \atr(l movenenit of nitrate in soil without plants follow\\ed the same pattern as ni- trate in cropped soil. Crop uptake did not slow the downward movement; it only reduced the amount of nitrate avail- able to move. With continued leaching this subsoil nitrate would ultimately en- ter the ground water. Int practice, how- ever, the farmer regulates the N applica- tion rate and time to match the need for N by the growing crop. Except in untI- sual situations, there is little surphls N in cropland and it seldom constitutes a pollution problem. Lb /A The graphs show movement of NaNO (sodium nitrate) in the soil. The area inside the graph shows the amount of nitrate from fertilizer N at different soil depths. INe lr\ ecdi 'Nlil I a lits i I i cI Icd- fll is I l i ii till th Sllitlicai~cr'l iStates dliii wit Ilse, bitt is liseli li'ss cxtelsiX ('I iii New Materials Evaluated aie iiOSS IX iiilblt' adl mi 11 test. fitit seisof cxp\i-ritiitits lcieiiiiiig ili 1971 iiaial \aIX XXIllompat 1 d s\ itli thle pres- lit iXX iltoallle hpe . T '(X filifilhl? Nitialiii 1'iii tirafin THi iIIIi~ll AC 92390 \llidlill IS. Borax SI BA Ceigv Flatliiio ifit Were X c(I'lrabgrass, Flo~rilda pulei') and XX i'l planitedu ill pilots six i~o\ \\XXs xx' and0 201 ft. lollu.. Ileriiiils XXIII applj~iedl boi thI preen it -i ice ao ti iicol litli \\(IllX ithi . it pXX er dII I Ill rotarX' hoc). ( oIi1 palisills He lrbiidesl XX re app 1 li ill 1(519 gral. Iof XX ater per acet. A Iractor-mo Illiteli comtpi 1 ressetd air 51)111 t'Nr XX as tused Illill it dlii tred spriiI it preIssure of 30 p).s. i. Dinitroaniline Type Herbicides About Equal for Peanut Weed Control GALE A. BUCHANAN, ROBERT D. McLAUGHLIN, and GEORGE WARD Department of Agronomy and Soils JAMES S. BANNON and HENRY IVEY, Wiregross Substation Preplant Incorporated Best ut l'pieli aliltIlco 4.1 ed app5I I ci~jl tioli plctl' ciiitiol ot 141as wX Xeedls as iiidiiiate I 1w laite .scasoii ratiligTs. Fialilre 1. Similar rat '5 applied( ats a ]ireeiciler'I lit' applici'a tio rtu erra'1 ~ii ~i5tic iitscoitiol. a111( XX ('1 leXXdX ss, efluetusi' ti all pi I' lailt ill- cu oil ratt't apphictioiiis. ('litro(I of brii lllilld XX II s XX as geui ('iaih pooriier thl)i gras d55XXet ctol i XX itli either prel'Iiergeilie ori) plitlt iii- ctil iioria i. i tit, iriis 2N0. Auiiit iii [iiir to1 1 plsll\cttil it iii til t Herbicides Prove Safe Cains'Cd aiiX' iiotitt'ahii( illilirs to iillialgIC ot pea'llluts. Salots ilf thc i ati's tl'Xtct' \\ads dlso reflectedl iiill 'piiijiii Xititis recordtied in tiii tabile. Iliicir r-ates iif 5(5 ldl oif thle hilriiides, sneli as tri- flli liii n111titraliui, retlucedt Xields. 1ilsudil i th eill Xlts obtaiiiiet at these triit aiongii the Ilinitriiiiiie liii iiides. Furtherioiiil, p-eainits app) 1 ear to liaX I sof- ficietit tehoialice tio idox lust' of these pe of III hii idesl'. Nlit (I, PiII I XI, i lii Xili ii XIIl ii~~~ii'~~ ,ii I. AXli ' ti ii \\I) ll(I:Ii 19 XNL'i', \ jeh il iiiI X h i , (0 it 1 XIiralill 0(.75 11) Conl triol I Diitiiil, I.5 li. (7o, iitiot ni tiliait i0.51) Pr(lit 9293(, (1.7 5 1ti. ('olitiol I Ti 2 1,570 2.57(1 I.,1) 0 31)30 1 972_ 0)i. 2,7.30 2,:390) 2,3( 1,830) 1,740) 1 8 30 1,71(0 1,8 3( 2,:3:30t I 800( 2,410) 2 390 2, 1. 36 3(13(10 1,9701 Some 125,000 forest fires such as this occur in the U.S. each year damaging millions of acres of forest PEOPLE WHO START FOREST FIRES J. E. DUNKELBERGER Department of Agricultural Economics and Rural Sociology F15 onSr iii'u s burin imillioins of acres inl thle UoTlitccl States eachi xcar, Of' tlic esti- moated I125,000~ forest fires that occur ai ii ma 1 lx . abouit 90 % are caused h)v mnai as a result of either iiieicdiai i or acciden t. The Southieastcrn region has more than half (65%) of thec iiiceniarx for-ext fires iii the Nation. A study xxas hcgun iii 1972 to reviexx official fire reports for all fires occuriring inl the NITJioiial Fo~rests of Alahia, Georgia, Louisiaiia, M'xississippi, South Caroliina, and Tennessee fiom 1901 tliioiigh 1971. Visits xx ere madec to each state xx lidc the case reports for forest fires occu rrinig duning tliis 12- -ear p)eriod xx cre irexiceed. Axvailable in forma~tioni deciin ig the iiati ire of thle case and chciiiteristics of offeniders xxeire cx- ti acteil. AlthIiouigh a lanrge onim1ber of in cen diary fires had occulrredc iii this six-statc arca durinig the studs periocc. iiivestigators xxcrc able to trace reclatixvclxy fews to spe- cific offeniders. Only 49 iiicciiciarx' fire repoits existed which prov-ided suffcient informiiat ion aibouit the pcrsonior per sons iiixolxved. B " comparison the offeiider s in tile mlajoritv of accideiital cases xxerc 10 iient ifie cc l case irepo(rits ax iiial e. For purose of coiiparisoni, a sample of .53 accideintal cases also xxere reviexwed. The inf'ormiation reported hiere ioxvolxves these txxo tx- vpts of cases -inceiidiarxy and ac- cideintal -andi the people iiixolxved iii eachi. Accideintal cases xx'ere fouiid to result priimar ily from txwo actixvities -debiris buri ng' (401%) aiid land-cleai ig (34%) xx which got out of conitrol aiid spread onto National Foirest Lani ds. U~sc of al- cohiolic liesverages einteredi in some xxax- as a fac-tor in 41%7 iif the iiicendiary caises. It xx as fcouind that actcidental fires xxverc almost al xxaxs te lie nsiult oif a single in - dlixvidual's action, hut in cendiarxy fires in- voilvedc a sinigle iiidix idiiul ill only 3.5% of the cases. Inceiciarxv cases uisuall) fooilx cd at group action. Race aiid sex. Persoiis ii ixoh cc in biothi types of fires xvere almiost alwvays wxhlte moales. Onlx six offendelcrs xwere blac-k. Mloreoven, ouilx-\ 18 offeniders wxere xxotni, and they\\xe re fprimiarilx insolv ed in accidental fires. Age. Per-sons involv ed in incendiary Ii i s %X eIc 11111(11 x itiii gi thaii thiose ill acidenf~itail fires. More thanl thrceeloin ifs of thosc involv ed in ii ci diaiv fires wxere less than 40 \,cars olif, andt 1 hall of' thecse \\,erec less than 20. Also, more than tin c Ioiiiths of the accidenital oflciilei s \\,er e 4(0 Ncars o)1( or oldcr xx dli almost ball, of theise 65 or oldeIr. Marital status. Ii iciinlarxv offcenders \\-crc tisi a] I'v sin 1gle wher cieas accideni tal offener were i xci isu all, m iri el. Wid- oxwedi, dlixvorced, o sep)aratedl person s x\-crc invxolvced about equiallxy ii 1)oth tx pcs oif fires. Educations. lixolx cienct iii tori-st fires xx ax assoiaed w i xithI a lack ofl edu cation.i Morei thIiani 80% of tlic accidecn t a] offend- ers had completed fcxxer thaii 8 'cars of' schlnig coioparcd to 65% of tlic in- cciidiarx'. Oiilx' fou irei s invixolvxecd per- sonis wxit] e du cat iioini oiiuld high school. Residence. Almost txwo-thirds of thec offendecrs xxere rural people. Of thec fixvc wxho liv'edl iii cit ies, four wex rc inviolvxed in accidcental fircs. Pcrsonis from small toxwns xwerc implicatcel in incenidiarx fires almost txxice as oftcii as accidenital fires. Employment. Oil the basis of informa- tioni ax ailable for about half of the cases it xx as found that the majoritx of offcnd- ers xwere employed full timre at the time of the fire. Less than 2(0% xwere unem- lplox' cc. A high proportion (if accidental fires invxolvecd farniers and farm and forest xxorkers. More than half the ii ceiidiarx fires xx crc associated xx tfi uniskilled, non- f arm laboreirs ii iiianuiifactoring and con- st ruction. Record and] reputation. Less than 4% of thc accidenital and only 20J% of the iiicci dia rx 41 ciii rs hadii a previous po- lice r ecord. Tlicie xx\is no ev idcnce of a history uof laxx xviolationis. The iiixestigatinig firc, officers proxvided txxo otheir cxvaliuat ions of the ioffendecr. These coinsistedl of a good, quiestioniahle, hr ad rating of their fiinaincial and social repuitatioins. Fin aniicial rat inigs shoxwed that one-third (if both thec inicendiary and accidental oilfendens xwere ratcd in each categorx . This same pattern occurred for the mncci diars' offenders' social rating, hut the opposite xxas truic of accidental offeniders xxithi 85% gixven a good social reputation rating. These fiindin gs inidicate that mnost per- sons inxolxed in forest fires are farm xxorkers or those small toxxni residents lixviiig near foirest aireas. Prexvcntatixe cd- tication must be directed to such people as farmers, farm xxiiikcrs, and forestry cmnplox ees, wxith peirhalps less emphasis on programs geared for urban aiid bet- ter educated audiences. nis jinsi,,s~ are aiIIIIg the iiost scrionls pill Ilits encouinterell in the pin- ductltionl of sotitheriipeas in Alalxinmi. Miost vaieities gross ii iii the State are' 11i"Cefptile to (dilidige 15 5 irtis (ilj5C5('. iig('( thait thiex Call no( lotigrer LIe gi 05511 hiiet'liii for \is r1esistanice hais 11(111 it Major obijectiv e of ouri soutlicri pci[ b~reed'inig progi dill. Tht brieetfiig efforit in progress ha~s b~enefited( greatly front1 lDeparttincilt of Hlorticulture, aoid the De- pa.rtiiett of Blotaiiy and Mh\icrobiology. Th lI('loillFg illtotmatioti 1mml that rc- search piroxvided basic preliniinarv back- ground olil xx li the bre ediing p)rogrin \\-is 1ljit. It %\-its found~ tha it most soiti- enpea vatrjet ies growxni in the State ini e suisceptilie to at least t hree x froses: the tosspea strain (of beanl vellox mIlsaic ( MAIN') t'owpea chilo)rotie m ott e (CCN\I), andiciicuinbet mosaic vnis (CNIX). The most damiaging virus \\-ias founiid to be BY NIV. The best soul ces (It re(sistane tom the three x irtises xx ere pro-1 cuiredi fromn tihe plant ittoduc~tionI toilet' tioii mainitajined at tile llcgional 'liitt Int rodution ~l Stadt ion, Exp 1 eriment. Gctor- gia. Inoculation and screenling teclinieiipts wvere developed for use in studying tihe iiilieritance of resistaince aull for scrteen- ig progenies in the breetdiiig progi di. Iinieritance sttidies indlictdt thalt i esis- tance to MX NIV and CCXIV is contirolled l)I N siingle recessive genes wh'lich iestilt iii at liigl levcl of resistanice. Early sttities oIf inhileritainte of resistance to CXNI in- tlicatted that resistance x\-its controlled 1) \ (Iinl ii diit gen es. Select ion icriteria basId s' On sx Mptoln expression xxere established'i ais a litract icalI means of1 stcreeiniing fo rie- sistaint selections in the b~reedinlg prolcess. Knoxwledge (of the modle of inher itaonce (If rtesi staince greatly enhliainces the i ri s resistance breedinog jirogi am. Since,( sinl gle genes are iinvolxved b~reeding is shn- 1)1 fit'd. The 1 ack cross illreetdii i nc thod is bleing uised( to tranisfer resistant' Ifrint resistant plantts xx itli fewv tdesirable char- ac(ter istics5 to i ore desirable comni mrci a vtrieties. First priority is bleing placted 11oIl tes deehoipeit of a MIN resistant Kuckle IPurple Hull. since this seemis tol lbe a moslIt desirale x arit'ty for fle~shi illarkt't andI is sex erelx clvamage(] 1)5 MA INV. Other v arieties tol xxhichi vir s reIsistaince is being transfieiredl ale Xlis- I itis, deceasetd) and Grauai~te Reisearch Assistants 1B. 1). leetlir and K. N1. Rogers. I Dr. B. 'I'. ( ;idauskais ainii Graduate fRe- siart I Assistiait A. -N. t tan i,iii. Producing virus resistent Knuckle Purple Hull peas is a top priority, because of their desirability as a fresh market vegetable. The photograph shows Knuckle Purple Hulls in an immature stage (left) more mature (center), and mature, as a virus resistent Knuckle Purple Hull variety should look when research work is completed, Breeding Southernpeas For Resistance to Virus Disease 0. L. CHAMBLISS Deportment of Horticulture sissippi Silv er (bhroxxn croxx (1r ty pe), Pincess Anne lllackeve ty pe),. aiid breeding line Ala. 562.,3- 1-'2 (eiat type) . Althloughi Mississippi Silxver xxas suisceptiblle to MAN and ('(NIV wxhein itlit ilitetl lix (viii tcciliiitic it is re poted( toi he tioleranit to soic Xii iisi'. Atdditionail resistaice to B) MVX and (:( XI shiouild rnake it at iilst x .luable nnlilti 1 Il( S iris ri'sistaiit vi itv. A 11(55 puirple' 11ill xaricts\ M Xississippi puirple, has the samne piitetitl since it has tile saine( disease rcsistiowtt is, Mlississippi Silx cr. Althotighi its pod1( tlolr at 1( shapte ii d'(ifferenit fromt Ktiicklt' Piieple Hull, it is as aflable for tlit fresh mnarkt't unitil at xiirus iresistaiit Knuckle Puirplte Hull is de\ tloped. ]'li(, tiretiltg prilgrain \xxits iniitiated( ((linii 11 i al v ariet iecs. lt'sis tan it sc lecti oi s friti 5t'gte gatitig ('ii'iatititis weret imatde trlled' eni irllill('tt gi oss tli chamlber. St't'dlitigs xx eie itnoculatted 7 tlaxs afte'r pliiititig bx' itbbitig allrixt ltidstt't pii- inilirs ]l\-ix s xsithi itiictlihn hinl freslikx gron il in ifec'tetd li',ixs. Teste itilctilated seedliings xee iexamneicd for x irtis syilnll toims 1-4-21 (las ft ither ticlationi. .\toiig tle seedl1inigs i noctulatetd illi ase'gil'ga~ti ng ppiltimit I re'sistanit plitnts wxere eideil(nt lNx hax iliii o visile s\l tiittollls. Sy np- tttns 55el (Ii'tadf( atnlllg sel'lmiis 55 iti sxo etcsibtlt 1)55c 1 tnls I iiirrctit latsi til pareints an new 1(5 sele ct ionis illadeIi ii thIe next segiregatin g generciat ioni tol Ibegin tilt ile\t iiatkci iss (5 li'. These5t' flck- crosses Ihaxe i ee 1 ~liald atd it ar(e cur- crlititln xwich tiiwill he' sci ceni forlii segre- gating resistanit pliants. 'lie nex't bacitk- croiss and sce elil iii t e shouli d 1)roduce virius resistanit sehectionis aipproacing the ClItnllei-cial patent tx 'pe. Iii aciditi' ii tI ci al v arietie'5 by7 the lbi'cii 155 proIgiai ne t~pe h~Alax e been'i 5 'hcctt't iii the carlx'N stagYes oft till lIickcross pi lgrainl. Sooie ot theeitare pro(Ifucti C' and aippeari 13) XNIN, resistaince, lbr('l'(i effoirts ill the filtrt c xill Ile dlirictetd tossll( a deelchp- iii i nexw \ atrieties \N it It i esistaiite to BYNIX, (CXNIX, CXIX' ili o ither vS ist' whic itl ii' llccle stio iltsoulltleil t xiiu 11 ciscwzcs in Alabamta. The Au burn Un h erf&!) Herbariu m A Recordl of ihe Plaii of Alabama JOHN D, FREEMAN, Department of Botany and Microbiology A tdi 1, i ls a n il ti' l 1 oX e I ii t b ' t o 4 1) p re ll 1 e a n d d rt ie d pll 111iX 1 is 'i' i lli'~t~!i ~ i it h lind.' ('cil 1)1 ill ha li iX ii hra llc ii of 1wii 1)hilli i ~i I t X is- ,1_4cd of h hil kiiIsofplils . llbe 6i)u~tld j t( )Ice 'iO AL~Ii \if Iw of S c i t f~il l Xllitu-. ,t'x 51', i lo li' aii o Ii't tiii brata tiuiaxii w iie'.er Xt t' IX I]x R s'itdh 101"oneo ouat-p' dul ir i e(Itt ti lll' i a t ay XX r f it X ' ii ~eit cil i If' Xt(Ii.X d ticp- el 1-1X(' 1t Juiit a' Z lse ffll lalItItIs.X I iii t T-~t 1 Si l l d p T ttlkl'el for eXX ho (' il tX fpit'tiiettip/ovi iiiest 1 th nLVMx k ientaurcb iri cl s ofi tiiiout species. is ii iti c , lo anx li, liltiii wby t io i i tla t ' clllit'm tiiiii t iise thatX ii it eT I)Iilt'XXI ' n m ie etial rix xof' iticu XrreXnce ' S to amine: tIitfll ttLidX l o f in). Ili, h se tifal e ad of' herai m \\cc&:, li tenIs o\\(,I *lt'4'r and-'iith i ll d t e fo to t as mo V an 0oi o ation vi ON ]]tated (. fr * them. I llld o W Cro ~ I ti' ti the .\ ibun iIix ( "iX li'iidii te I)i \Ii: \ i 'nitift liaue l aX 11111 liXp thi a o f i iohthtI't'o tAlioli iii~tliC),41 ..I st I ,-ilge of s t iieii,T ov ant I~'5 d t ll I'tIIii I i I~ Itl \ ii ii Itie Its F It I. F. Aud g l x t olt I, i ,(I_ cl hu I ) Il X t e iiit'Iu of tit l0~n -ti hl lid ili JX ax lill'heatt il ig ti 10 1 50's dul ix 1hixtoi( itahix . 11ipit iitfo tx esu s o (1 Miss ntlrx Xt xx'a 1ii 4f I h lt(-IXI'v the I.Ol~ pili h Il i 9 1 lt. aIg (2) wecl Iirhi iiii co itti lioll s ax Xe'it'iis ao t 1 etlt) toite lvA \ I. (la pill)-v ,iloi infr i on fr I9 o e 1110 o l te io aI hs ri oa Ira ofth of, iii tol .iii i Uii e St a tlvcol~lol~ IIfl-1 i basi orei pes ed ci etificd stcud iei a icrpl~rl l beoto tsecietii lo ii tohe amin thiuougi ao seiso Thusparatlr Growth (If theodo pubrii Uiest label aru prdei xtattii XXions1, XXnaios, bx X bl) illili xx spe iitn aox personail'td tol- dextooktc pbihe it 19x 1s i aohetde ( 2) he 1 )icarmt S ltitll ad In 12 seies(aot100 olce ~ .W hpnl1 its labiei aie gilieti. tahped, sewxetl ir oitherwise attached to 1112 ill. X 162 iin. Sheets Of' hligh imj~alitx' heaxx rag palper; (3) recolrdsX. LbItiuniatix- suchl spec imensi mosiit hei filedl iii fireprooif casesx at'cordiiig to siiiie )1dci l rctlic'xal S tein for fulture ise. Spet'iimenus at AVA' aie filedI alphiahetit'allv at'corinig to their sc'ienitific tclasxificationii s to faimily, golilixdiald xpetcies andi ca thrus hb' fon it s easihx as a namne in tol indlex. Speci- nioos of the samne specietts arv arran~ged accoirdfing tol tih' ho t'alitx of collecttion bx' state and county. Gro\ti id tlit Auhiii HiIerbariumi durinig thet past 5 yetars Yowl1' (iuiilati\ throii uigh I98. and( sll ied '3,357 3,7:37 .3, (A0 2,100 4 254 1,500 apel subistan1ghi tlei ra,'i th~ f73tl 'i il i i:'till (1i e r st ~II a Ii X ei a .ii] location~ oflit 'AuiiiiLb'ijix &r'tt. Sc\6'X nrl lilisitx' collec' tionis iii thle lb iiited"'Stat~ iIiIil I X5,lAKllXer a1 million speti- nels, iin otl 1111 mainitin lcrba4h,4yN Vnio than ,5 t,00,00, to) XX ii 20) 30 thoui)ii it(,\\' xi)(Jin illli are adldedl ('a11 Year'. Detspte its 511101 xikt lanl tiii/o litixe lix xhil tnie that ra1 1 icilX becoming 11111' tuehex !sdjili'1'X )1 lf I~sic infornatioii ProdA)X tile liiO.St 'htuj x funoioi iif aflx herbariumn, xxidier large or xina~l', lIi identifi'A'tion, of1 plnt Spcti- illlix t xiii l ita f~i'it; %Nx iti apri priate re fereince litt'ratiiiltl'u de- tI te Cl) ,iiio l iMiii, tii i''ial idleltifut'atjoli l< l a lssil'' \\'ila"r"t'it ideiitifit'atioiis xei'xiii' px mt'ilioxtii Srix till'Pf#'R'1)' nii rcilX llls upliat'- ofX ( t' spellt'Xt d I lX il' tl)X reinti g tion pidhi' i his xhlill t'ist ol. llllXXoux ftiiixp ti'insoxxothrindhvax as odc - poticit id t helIili 1)7tl'riiin Ijlliev t' to t i ieiariio lln 15e epted exx'C-a ilpprfiiilirt owafri goodhi spixiceaibas r'I'llt'lxxi littlil (ocrito lAo andlstaffiii' t hat atfuir ailplme teive be thit liu ltc\li ihid ntit tile e Sliitiliastl'i I 7 it tat es.---talpo bc IRRIGA'77,0N ORGANIC MATTER .. FERTILIZER Necessary Inputs for High Yield of Watermelons W. A. JOHNSON, Deportment of Hotiltio' C. E. EVANS, Department of Agronomy and Soils llt' that ciloilli( to i% . c hligh \\ att liii % ielils it Alit taiiia. Each inpui)It abtil ii i cii s~ proiduin, but all tlii CC' Espetitnwnlt Stationt lixsearl oi il deep xaiiakx soil lowx ill in - tiiittic lniatter. \lk''tible \ id %%cn its a -l id a 6S5 exx\t. Rates of Fertilizer, Organic Tested tiil/el ulSed 1 x \\ie.( Oute., 21- 1 8-2;, -18-:35-4(5 iiid 7-'5:1(69 lb). of N-P-K per ate. Th'le orgaitic matter ised wxax eithier G toll" of alimial lilalili c or 6 toils ofi ree i. tchi p) , r act c. applied ill C ntiilliatuiol xiii iiiediltiii aiill high i atix of tei- tilli/tr. A 12-ttiii iiial mtanure talte \\-it tried wxitlh tihe high fetrtilizer rate. Irii titt conisted'i ol' I lii. ol xx ater per' Week ilmil itig tile 41 oxx tugy seixsol Ix Ihl IIlitlall \\it ax fiicilit. W\aternteloit scedC xxci e platited lii bills T.5 It. apart ill 94tI. irows. '1xx\ plats pet bill xx te left att thu lmong. Tbi 1cu xx iekx be~fore pilittig at :3-It. roxw baod it s I uiligilid wxithi at broadicast applicattuti of etlix Iine~ dihri itide for rootkilot ilitatide conttrol. 0nle tilirdi of N anid ha~ll of P anld K xxvete appllied( ill te r-ox bebfirC platintg. This app)licationi rate wax r-epeated as at side application :3 to 4 xx eeks alter- pliting. Illilaitliing N x as p)it Oil xxbetiI N inex begitil t ritti1. Raitntall xxax xtifficjet t the first studx v wiit mid there xx ax little or tno rexponse tol itrigatinii. 'i le scCiiiid x eat- wxas Clix diiritig tbe( first 2 mlouths Cif ti(' ox lwitod aid viC'ldl xxiii liil t expoittxi i toi irrigiti. \ar-kctable icItdx xllo\Iix fix the gtiajpl ie ait aiges for thle 2 ilx cii ilili iii', gi iiis ix ti-kci tut i L i c oii illi t,) 70110 20" 2 19b 3G0 - o9s- I U0 LI ' N--,Q)C '? ;8 Y, 4, :C- 4- 72 53 6 725363 2536 Effects of fertilizer rates, organic materials, and irrigation on yield of marketable size watermelons. it 11 igi xsIIi~t- t2 iz i/C s1 tlt(, mtiix pop)ilatl I()]- the reta~il gri t \t tirade, xxIil e it3' :to i 39 ati1 401 to 19 xx tights ate gctiicr allv liaidlid lb\ ri tIiIC matrkets 11111( itlict tlitits. Fertilizer Proves Essential \ aliti, iof It tiliii't xx ixs ist ilhilitd co iicltixe .l ' lae cx axi ilt thiarttable, x\cl u' 1 1 x i'i tno lettili,'er 5 xxii app~liedC. W\ithiout iiigatlic mti altii ts aCdded,. ilierellxitig atoc ofi fi'i' tilicr (raxve at coiisttenit ilCrC'asC' lii tottal ttiat ktable x kId ait 1 ill x ieldoil 21)- to 29-1ii. silt' iclitts. Thlix \\ its tic bntth wxithliti xx ithiiit iii ugitut i. TI 'lii h i'ah tteo fer tilIizer wxi thoiuit orgyat iC or. irriuagin r t e- suited ill btlil produlcR'ttn otf mcltix tif '30- ti :39-l1t. site- abut thrtee littcitas mait fro 1:1,111 iixx itc ti i N. I), mtidi K. Organic Matter Boasts Yield gt'eatlx ilCaSC'CI x iC'ldx at thei titeil-1im fet till/Cl rate (-1 lb). N, :35 I1). P), aid 46 lb. K)I. TiCtx it orgatiCiti t rcies gaveC Gitig~ frotnt itidium tot highi tertilizCet rate' showxxed nto x'ieldl ada~ ltltagC' x lieul the 63 titus ofi iii auic matter wxas ttsi'ui. A 12_toti m1aututi(,' atC' xxit ix I )i tit tt o ga ii lliCrx iCs titanl xxerte moadi ltolltx tu lpliCilt itit if Gi titi i.. Ii ruttratitii n (i' a ittliiti lit itlctielxi ill xvivid xx i i'ch fer- tilize'r illid trgaimiC tr('Atiiiit as xiitxxii is 2 x cat ax iages te(ttrdli'C itt thii gyraph. A Cofliiilltlioi ti t',tinilt itt coni dcediih Iighestxlii. FACTORS ASSOCIATED with SUCCESS of CONTRACT BROILER GROWERS in ALABAMA R. N. BREWER, Department of Poultry Science MORRIS WHITE, Department of Agricultural Economics and Rural Sociology THE BRROILER INDUSTRY serves as an ex- ample of the successthat may be achieved when a relatively young and growing industry continuously strives to solve its own problems and remains rel- atively free of government assistance. Information presented here is a portion of the results obtained from one industry- supported effort to make improvements. Performnance records indicated that some broiler growers were consistently more successful while others consistently were less successful with the broiler en- terprise. Industry representatives coop- erated in an effort to determine the fac- tors contributing to this situation and to determine corrections that might be made. This effort involved obtaining de- tailed information from 167 broiler grow- ers and 5 contracting firms. Ninety-one of the growers were among those who were successful (Group A), and 76 were among the less successful growers (Group B). Information obtained included per- sonal characteristics and attitudes of the growers, physical facilities used, and management practices followed in the growing operation. These data revealed that the median age of the growers in Group A was 10 years above the Group B growers. How- ever, growers in Group A had fewer years of formal education. A smaller proportion of both husbands and wives in Group A had off-farm jobs, and those who did work away from the farm worked fewer days at their non-farm jobs. More of the growers in Group A grew crops and livestock for sale. Al- though these enterprises did require time, most of it was spent on the farm and, consequently, growers were not 14 completely separated from the broiler operation for an extended period. During the on-farm inspection the in- terviewer evaluated and ranked a num- ber of items generally associated with a successful operator. Although the pro- portion that received a rating of "Excel- lent" was fairly low on some items for both groups of growers, the proportion that received the excellent rating was much higher on all items for growers in Group A. The proportion that received a "Good" rating was not significantly dif- ferent between the two groups of grow- ers. However, no grower in Group A re- ceived a "Poor" rating on any item that was rated. This information, recorded in the table, shows that the state of re- pair of buildings and equipment and the general appearance of a farmstead was associated with a successful broiler en- terprise. A majority of the growers in both groups felt that growing broilers pro- vided an opportunity for them to do the kind of things they did best. But the proportion of Group A growers who felt they had little or no chance to do what they could do best was only about half that for growers in Group B who ex- pressed this feeling. Memberships in farm organizations were more prevalent among Group A members and they at- tended more meetings of the organiza- tions during the past year, although at- tendance at meetings of this type was poor for growers in both categories. Generally, growers agreed that serv- icemen were well trained. Growers in Group, A disagreed less, often with the servicemen's suggestions, but when there was disagreement they were most likely to cooperate with what servicemen sug- gested than were the Group B growers. Growers in both catagories who ex- pressed a preference for contracts that provided for reasonable price guarantees plus performance bonus for doing a su- perior job had the best performance rec- ords. Eighty-four per cent of the Group A growers and 61% of the Group, B growers expressed a preference for this type contract. An area in which improvement could apparently be made was grower-com- pany relations. A majority of growers in both groups had not visited the com- pany's office in the past year, and more than two-thirds reported they were al- most never complimented by a company representative other than a serviceman for performing an outstanding job. Physical Facilities There was a wide variation among the growers within the groups and between the two groups in the physical facilities being used. Although approximately four-fifths of all houses were of a pole type construction, more growers in Group A than in Group B had clear span houses. Other characteristics of Group A farms were more insulated roofs, better ventilation, and level topography. Ninety- five per cent of Group A houses were in good or medium condition, while only 65% of Group B grower houses were in equally good condition. EVALUATION OF BUILDING AND PROPERTY CONDITION, BY GROWER GROUPS, SELECTED BROILER OPERATIONS, ALABAMA, 1970-71 Condition Item Excellent Poor Group A Group B Group A Group B Pct. Pct. Pct. Pct. Appearance of farmstead ..--..... 37 6 0 2 Outside of broiler house - - 38 13 0 6 General state of repair 40 9 0 1 Drainage around house -- 26 10 0 0 Other farm buildings ------------------ 11 2 0 4 Dwelling house 45 26 0 0 Y ards .............................-_-.................. 54 34 0 3 Equipment storage. 18 11 0 0 Roads to buildings -- 26 16 0 0 Fields---.-.----------.-.------ .....------------ ---- 20 7 0 0 Alab~ama re'searich. St eers leil b asal miiix- forme bi~IIetter ti iali th ose fed thle salii m ixtin- wi xithI out addced protein . Basal muixtures of grain and i ougliagc usual]l' con tajin 8.5% to 9.0% crude pro- teinitas fed. Inl one recent trial, averagc steer gail xxas iiicreased almost 0.2 lb). per day wxhen the pr otein conitent wvii boosted hiorn 8.4% to 11.6%. Other datat also in dicate that suipplemeiitary proteii i is ieedled inl liniisb ifig rationl s evei fo1( cattle goig cliiectlv froim excellenit graz- lng to the feedlot. Either cottonseed mneal (CSN ) , soy - bean mueal I SB NI). or peanut meal has ilceit tile supp~lementary proteinl SOUrce inl fattening mixtures dluring the past 1.5 Y ears of fcedlot researc lI by Auburin Uni- vlesit Arclual Experiment Stai 101 citix v, huowxever, limited ax ailahilit \ andilirca~ldcost of th ese oilmucals hls prompil 1 ted liv estock producers to s( otheri sources. Iinter est has grown ii ii pos- sible use of wvhole cottonseed or sox beai s aiid 11011 pioteillinitrogcen materials. Cottonseed to Replace CSM \VIhole cottoi seed typficallyx contain abouit 23% each of1 cruide tilt e(ther ex- tiract) and piroteinl. \\']enl fcd to ciattle, cottoniiseed have total digestible iintrient (TON)I content ot approximiately 84%. III contrast, commiiil I tattcnliiig mixtures are 65% to 75% TDIN. ili some early Auburn stuidies, grounlid cottoiiseedl replaced CSTNl onl a 2:1 basis.i The mixtures containing CS\I suippoirtcd 8% 1 iigl ir rate of ginl ibuit Iced 11om xer- 511)11 xx as II V more efficient itl tile muix- tiries ciiitliiig cottoiisecd. This iii- creaised Iced efficiciicx' call lic attibulited to tIle' high oil con tent oif tile cottonseed aud( the rcsultant higher TDN conteint of the mixture. These cottonseed-con- taiiig blenidedl mixtures xwere full-fed to) boith s earliuig steers (750 lb.) and xx can- liug calxves (450 lb.). Both sizes of cat- tie muade good use of the pr oteiii iii cot- toiiseed xvheni used to imiake upl 15% of tile bilciede mixture. Soybeans vs. SBM Like cottoniseed, fll fat Oi uiicxti icteCi soybeans are high inl ciirgy because of their oil coiitent and c-an be used] as a protelin source. T1his legumne seed ts pi- tally conitains about 18%7 crude fat aild 38% crude protein, xwith TDN colitelt for beel cattle aipproximaltely 857( Sos beaos coi taiii certaini cii zvxni c (lipase, urease. trs psiiu iinhibitor ) that may cause miidesiralile effects if led raw. I [liat xxill iinactixvate these enizvmes, therefore, cooked or heat-ti elted sos- beaus canl be ellectix elsv used as liv estock feedi. Eqi ~pmnit is coinmi ei ciahlx' avalil- able to iroast the helms for feedinig. Three stecr-feediuig trials xxere con- duuctedill wh x ich full-fat soybeans heated titii a as-tii ed "ro(aster" xwere subsitituitedl for SiiNI oi an approximnately equal hasis. Cattle fed these mixtures had dail gainl and feed coilsersionl similar to perform- ance wxhlen corn wxas tile pirincipall eneirgy source. S ubstitutiing m ilo (grin11 siir giiuim ) for the grainl soul cc resulted in more erratic anlimal response, hut per- formance wxas still compairable betxxecen the two suippleiiientai x pi otciui sources SIMN xs. hecated soxbeiis) Animnal performnice xxs is imilalr iii an- oither hiniis hii i tirial xxhlen raxw 1(111 flt sos 'beanis xxere compaired xx itli heated sox be])anls as a souircc of priotecn. I loxx- cx er, the mixtuire contaiing raixx soy- beaus had a slight laxatixve effect, at con- dlitioni that xxas iiot noitedl wxith tile mix- ture coiitaiii g heated beans. Rawxx so '- lials shiould oot be fed toi caittle that arec gettii urea, nor should they be f'ed at at lev el aihove 1,5% of1 the mixture. Non-Protein Nitrogen (NPN) Mliciribes pi esci it ill tile digcstix e tract of rummiiiits call iiiixert NPN inito pro- teiii jproxidcd ad(1 luIate enerigy is alsoi ax 'ailable. Bacterial action ciom biinis ini- tirogei aid id t ciini 1 oi ei t of tile cii cigv sourice to form am inoi acid s. ht c a1iii acids aue theni ciiiied to form) proteini that is uised 1)v cattle. Ac dr, iirca-cliiitaii ig proteiin suipple- ocii et ( ii uiii 65 wa x us ciimpa red wxith CSNla at it potcui souice ili finiishing a tioiis for veaing steers. Hate of gain xxas clim1paliable ( 2.7 v s. 2.6 lb). daily) anld feed consversioni wxas siiniiai ( 1 0.8 xs. 11.3) (luiingr the thiee tials. LP iid N PN suippi emei ts are av'ailal e commercialls and cuiiici tl' v aire good 1)uyis per iiit of proiteini eqivxalent Three such sul)emen ts prhoxedl satis- falctory xx hen com palred wixith other S0111ccx of proteiliiii. fo attei ig cattle. Feed initake, feed ciii xcisioi , rate of gain, ani d caircass char acteristics xvere coimpariale to tliose of steers fed CSNI or Auibin-6.5 supp~lement. Results fromn several Alabama feed- illg triial s in dicaite thact ciotton seed oi soy- beani s au e satislactoi x sour ces of supple- mnentalry pr oteiii ili finishii ig rations. Cci- taiix n on pi iteii iniitrogen Isiolurccx ( either dI- ry l i i(l) alsxo are cifect ix cl utiliz edl ats pi oteiji solces bY faittciig steers. Several Protein Sources Suitable for Finishing Rations R. R. HARRIS and W. B. ANTHONY, Dep.o nia n Dairy Sciences V. L. BROWN, Loweer Coastal Plain Substation J. P. CUNNINGHAM, Dept. of Animal and Dairy Sciences Shipping Fever Complex Causes Costly Cattle Problem G. K. KIESEL and C. R. ROSSI, Depariuneni of Animral Health Research, E. L. MAYTON and H. E. BURGESS, Piedmant Substaion S 111i'i1i\(; I I\ I il - it (1011iii0 I lililt for ihe "I cii ili tii cesil-t p r d iii l I (' er". F xIi iias bu ll t sociaii ted v\ Jit I (Ile I/a tiiii iliicxtri Sitnce.', c glut til ttt'rt'ii t xi uc oiritir arcii' eseialB, hred iiox bY hiiit of hit xii, tliliils. lxci a ix''' ti ll\Ii c l e II p' i ii',' d iii ut' i ix iii ales i' baiig1 hit.iiilw a irexo di,tc,ujectex d tou sitx milis ior'i i''tiiiiiii'ioobjects xtrtxx diltit''p tiiiis lug thipi',t eer. l ,te little xlilie lioxxt' t'r. iitixi'i ofi expsl-. or11 sic 13-nl) iniJ iuoo ~ li/ad 01eedlotiiii lieti O Wpititc'ce rehit toiii fichs camc u'fprutr i diee tuinte priduier Yer c' rif ppl\. ccrbcol tx ill giiiixcriil l l acc pte (' clim ofii 1 xxitlt ei x ic'lted ci to l \ iitil'c lix t tei u isi '1811 BNttol O) il) ,cid Il 3 aitl laic3 tel ii lir 1) a liilliica .i el thieu/' iucars, c4,ii w compau/. licionx's 15 to te i i g xx ick, xx ii liiihe fliliixx ii ig iiie i k'i iit (Grsuip I (pit'\\ t'ii l iiii pi 'cciici- ifi) - cdix us \Ic euN iji ii ix u tli thenui pl i liii' .311 " r lii ix, gill i px~ I :0 il\ 2 xxur (i'p 1 'a-c' togc tlit' aridc 201 cauixi' tha~t hii a bcii t'\pixt' to xhiippiilix feie wxeric pirhae firiini hit s tickxNr ancidii place'd xx ii liii he lis ii'1)1,11. I il iii of iii ' )Iil- Ili.'' 'i,,*,x ca ii' x\l~ Va'cuutil 'iii , i i dI.al All cdlvc ix x te oilserx t'c dujix fur 31) tiai', fori xigu ix i ii ipiu ~lix 'i Bliiodc xi t taklci iroiiin all cal', s ix iiitiaiii iiiid ~it 2 xxi 1 k io teix ailii iiiiu.wluu ite ec x- ficr i tsxxu iii coi icLitiiiii ii'txx it'i pie- idi cliluicxii.O i sign lfsippiiug ftexvcr. All AGRICULTURAL EXPERIMENT STATION AUBURN UNIVERSITY AUBURN, ALABAMA 36830 P. Dennis Rouse, Director PUBLICATION--Highlightx of Acu cltuicl Research 3'74 I OM Penalty for Private Use, $300 x piittitu dixuc's. A iii Iv pire1 c'ultiiit (Ii J, 1 ix/i liii /a /0 iiiui/itica xx ixs lilatdii Iil iii l uii . Ilio\ ixx ii, luttellipts toi ixuiatt' xcirlix fro i lu l lill xxxab oifii sick cailxcx ur firiim lii u'ut oli t tlt died tlitut ha' xiill(, i o' Hiii ll. MXI NII)1-:3, ,ii i l iii', ii ii' , c ii i sii, I xxc ii ' ct ill- x ulx(( i lili rsix l ituui x iisu'uxciiss o tlw'x'' oot hitcte il the~ spcn~c xei.ixi does notic lita t th iiiupctiwit iici noti ic elcitet 'Iteiuci(lit'',', of prox\ liii p/roitecin ('1 ax l \ x th el spe ific dxtjuuii' ot. \\Iis es the- lc Illlact it i~t uuil it i', iii' , i ll- ti ixtlit' t'iiuxi(" cl lt ii', xx el ,i ' iillte POsTAGE~k co pxaID ci-rd oefc ofS DEARcl~ TMENT col eup'td AGflct~iCUtes ofhscoiLa IDue AGRl 101li U.S.cic MAIi'wLs pou. THIRD irCrista LASS n m Ir