North Alabama
Soybean Variety Tests
1981
Donald L. Thurlow
March 1982
Department of Agronomy and Soils
Departmental Series No. 76
Alabama Agricultural Experiment Station
Auburn University
Auburn University, Alabama 36849Gale A. Buchanan, Director

Table of Contents
Page
Introduction 1
Experimental Procedures and Discussion of Data....... . -4
Data Recorded ............... .... . 5-7
Soybean Variety Descriptions and Disease Resistance . . . . 8-9
Seed Source for 1981 ................... 10-12
Soybean Yield Data and Other Growth Characteristics by
Location
Sand Mountain Substation, Crossville, Alabama . . .... 14-27
Data for Tests Planted Early May ........ 14-19
Data for Tests Planted Late May ........ 20-23
Data for Tests Planted Late June . ... ...... 24-27
Tennessee Valley Substation, Belle Mina, Alabama . . . . 28-33
Upper Coastal Plain Substation, Winfield, Alabama . . . . 34-42
Data for Tests Planted Mid-May ....... .34-37,41,42
Data for Tests Planted Late June ........... 38-42
Soybean Yield Data from USDA Uniform Group V and VI and
Preliminary VI Tests Tennessee Valley Substation, Belle Mina,
Alabama ...... ............ . .... ....... 43-46
Seed Size of Soybean Varieties and Lines by Date of Planting
and Location Grown ....... ..................... 48-49
Seed Quality of Soybean Seed from Varieties and Lines by Date
of Planting and Location Grown ................. 50-51
Seed Purple Stain Rating on Soybean Seed from Varieties and
Lines by Date of Planting and Location Grown ........ .. 52-53
Acknowledgment ...... . .. ............ . . 54
-i-
The following is a suggested list of varieties by planting date for
northern Alabama., Within planting dates, varieties are listed by maturity
group-,
Plantings May 1 to 30
vi vii
Bay
Deltapine 105
Deltapine 345
Es sex
Forrest
Coker 156
Davi s
Lee 74
McNair 600
RA 604
Tracy
Tracy M
Plantings June 1 to 30
vi
Es sex
Forrest
Centennial
Coker 156
Davis
Lee 74
McNair 600
Tracy'
Tracy M
Lines and New Releases to Look At
vi
vii
Bragg
Braxton
Coker 237
Ransom
viil
Agripro 55
Wilstar 550
NAPB .611
RAX 9
Green Seed-737
Green Seed 791
-i i -
U.~ \ILlU,
r
INTRODUCTION
To properly evaluate a soybean variety it is necessary that it be
grown at a number of locations, at various planting dates, and over a
period of years. This will subject the variety to differences in soil
and climatic conditions that occur throughout the State. The most com-
mon limiting factor in soybean production is inadequate moisture during
pod development and filling. Since soybeans are highly photo periodic,
the blooming period, period of pod development and fill, and maturity
date of a particular variety do not vary greatly from.year to year. Thus,
it is important that varieties from more than one maturity group be evalu-
ated at each location. Continued testing and evaluation of soybean varie-
ties and experimental strains by agricultural experiment stations are
essential if farmers, county extension agents, seedsmen, and other agri-
cultural workers are to be provided with information to help them select
varieties best adapted to each locality and suited to meet individual
management requirements.
EXPERIMENTAL PROCEDURES
Tests in north Alabama were conducted at three substations of the
Alabama Agricultural Experiment Station of Auburn University. A randomized
block design with four replications was used at each location with the
first plantings made at the optimum time for maximum growth and yield.
Plots were planted with regular commercial soybean planters equipped with
special seed hoppers adapted for small plots. Plots 
were four rows wide
and 23 feet long with 16 feet of the two inner rows harvested for yield
determinations. Harvest was done with a small plot combine at all loca-
tions. Rw width was 36 inches at all locations. Seeding rates were 10
viable seed per foot of row based on germTination at 75
0
F. All plot areas
were fertilized according to soil test.
The entries in these tests included released varieties and breeding
lines in the late stages of development from the USDA Regional Testing
Program, and commiercial companies. Sources of seed are listed on pages
10, 11, and 12.
The tests in northern Alabama were located on Decatur clay loam soil
near Belle Mina, Harsells fine sandy loam soil near Crossville, and Savannah
sandy loam near Winfield.
DISCUSSION OF DATA
Since plant growth and seed yield are influenced by inherent soil
differences and moisture availability, it is not possible to determine
exactly the yield potential of a variety at a given location. Varietal
performance may also vary from year to year because of variation in
rainfall, temperature, diseases, and nematode pressures. Therefore,
long term yield averages are more reliable in evaluating varietal
performance in a given production area.
Differences in yield for 1981 have been computed using Duncan's
Multiple Range Test at the 5% 
level of probability. Yields 
followed by
the same letter are not considered to be significantly different.
Coefficients of variation (C.V.) are footnoted in the tables. This
value reflects the relative precision of the experiment.
Seasonal Conditions
Early season moisture was adequate at both Crossville and Winfield
and good stands were attained on all tests except the July 1 planting at
Crossville. This test planting date was delayed until sufficient
moisture was present for germination but still poor stands were
obtained for some entries. The test at Belle Mina had good subsoil.
moisture at planting but the surface dryed out during seed bed
preparation which resulted in thin stands in some plots.
Belle Mina (tables 16-20)
There were three periods of severe drought stress at Belle Mina
during the growing season. The first drought stress period was a 17-day
period in July (9-25) which adversely affected Maturity Group's IV and V
pod set and early development stages. The second drought stress period
was a 10-day period in August (6-16) which again caught the Group IV
entries in mid pod development causing a reduced yield for these
entries. A third drought stress period was in September when only 0.47
inches of rainfall fell from September 4 through October 1. This third
stress period resulted in all entries maturing in early October and
reduced yields on the full season Group VI and later maturing entries
(Group VII and VIII). In between the second and third moisturestress
periods was a period from August 17 through September 4 that 7.4 inches
of rain fell which was at a period that favored the late Group V and
early Group VI. These 10 varieties yielded from 49 to 52 bu./a.
Crossville (tables 3-15)
Drought periods at Crossville were similar to those at Belle Mina
in mid July and September through early October. The 4.7 inches of
rainfall in the first 2 weeks of June produced adequate plant height on
all entries in the first planting (May 13) at Crossville. This coupled
with 1.5 inches in the first week in July was ideal for blooming and pod
set for Group IV and V and early Group VI entries. This June and early
July rainfall was not good for the later maturing Group VI, Group VII,
and Group VIII varieties, however, and excess lodging occurred. Pod set
-2-
was also poor on the later maturing entries due to only 1.2 inches of
rainfall from July 6th through August 5th. Rainfall of 6.8 inches in
August after the 5th resulted in excellent pod fill of varieties of the
Maturity Group V and early Group VI. This wet period followed by a
period of 32 days with only 0.9 inches of rainfall from.September 3
through October 9 left the full season (Group VI) and later entries
short on yield and small seed size, table 32. The yield of the second
planting (May 28), followed somewhat the same pattern as the earlier
planting. "However the yield of the third planting (July 1) was obtained
form the 3.2 inches of rainfall in October.
Winfield (tables 21-28)
The three dry periods at Winfield were similar to those at
Crossville and in addition Winfield did not have the 2 inches of
rainfall in late August. Thus a period of 23 days with only 0.5 inch of
rainfall during the late stages of pod fill of Group IV to 
early pod
fill on Group VIII resulted in poor pod set and pod fill. There was 1.7
inches on September 15 and 16th followed by another 21 days without
precipitation. This resulted in very low yields 16 to 25 bu./a. on the
first planting (May 25) and 19 to 28 bu./a. on the second planting (June
15). The higher yields in the second planting were a result of the 1.7
inches in September which favored the late planting in 1981 more than
the earlier planting.
Effect of Planting Date on Yield
The highest yielding cultivars at Crossville were the Group V in
1981. When the average of Essex and Forrest are compared at the three
planting dates their yield of 50 bu./a. on the May 13 planting was
reduced by .8.3 bu./a. by a 3-week delay in planting to May 28 and a
decrease of another 19.3 bu./a. for a delayed planting another 4 weeks
to July 1. This was a yield of only 54% and 83% of the May 13 yield
when planted July 1 or May 28, respectively, in 1981. Maturity Group VI
varieties were the highest yielding cultivars at the latest planting
date. A similar pattern to the 1981 data is shown when looking at
multi-year data. The Group V varieties Essex and Forrest average 38
bu./a. on a 3-year average and yields were reduced 4.2 and 13.5 bu./a.
when planting was delayed 3 or 6 weeks, respectively, from the early May
planting. Again, the leading varieties at Crossville for the early and
late May plantings have been Group V cultivars when averaged over the
3-, 4-, or 5-year period. However, the leading cultivars in the
mid-June planting have been Group VI for years 1980 and 1981 and Group
VII for the 3- and 4-year averages during years 1979-1981 and 1978-1981,
respectively. For the 5-year period 1977-1981, there was only a I bu.
difference in the average for the four maturity groups V, VI, VII, and
VIII.
-3-
Seed Qual.ity and Purple Stain (tables 33 and 34)
Seed quality and purple stain ratings are shown in tables 33 and
34. The only problem with seed quality in northern Alabama in 1981 was
in the Maturity Group IV soybeans. These are the early maturing entries
that usually mature in early to mid September when the temperature is
usually still high. Seed deterioration is more rapid during high
temperatures when moisture is present than later in the season when
temperatures have dropped even though moisture may be present. The pod
and stem blight and purple stain infections are usually favored more by
high humidity during the early pod development. There is usually a
higher probability of humid conditions during this period for the very
early varieties than the later ones when the former are usually starting
to develop pods by mid July to early August.
Seed Size (table. 32)
Seed size (g/100 seed) is usually affected by two factors, genetic
potential and soil moisture availability during late stages of pod fill,
table 32. In general, the seed size was largest at Crossville and
smallest at Winfield. This is much the same as the yields at these two
locations. Seed size was smaller 
with the later planting also
indicating a severe moisture stress period during September and October
in northern Alabama in 1981.
USDA Regional Tests (tables 29-31)
A preliminary test in Maturity Group VI and Uniform tests in
Maturity Groups V and VI were evaluated at Belle Mina in 1981. These
tests are shown in tables 29, 30, and 31. In the preliminary Group VI
test, table 30, Centennial is used as the standard variety. Six
breeding lines were as good or better than Centennial. A number of
these lines will be advanced in the Uniform VI test in 1982. In the
Uniform Group V and VI tests, Forrest and Centennial are the standard
varieties, respectively. Nathan and Jeff are recent releases in Groups
V and VI, respectively.
-.4-
Table 1. Rainfall by Location During the Period August 15 through
September 30 for 1977 through 1981
Location 1977 1978 1979 1980 1981
In. In. In. In. In.
Sand Mountain Substation
(Crossville) 11.07 3.05 15.69 10.58* 5.56
Upper Coastal Plain Substation
(Winfield) 9.01 1.98 10.68 7.61* 4.13
Tennessee Valley Substation
(Belle Mina) 6.20 2.91 8.10 7.46* 7.84
*Rainfall after September 25 was 8.92, 5.24, and 4.86 inches for
Crossville, Winfield, and Belle Mina, respectively.
DATA RECORDED
The yield of a crop is the primary factor of production when
profits are to be maximized. Other characteristics which are im-
portant are plant height, height of lowest pod, maturity, lodging,
and size and quality of seed.
Yield of soybeans was determined by harvesting the two center
rows of each plot with a small plot combine. Plot yields were ad-
justed to 13% moisture and converted to bushels (60 pounds) per
acre.
First bloom was taken as the date when there was one flower
at any node on 10% of the plants.
Maturity was rated as the date when the pods were dry and
most of the leaves had dropped. Under most conditions, the stems
were also dry. Harvest date was approximately 7-10 days later
than maturity date.
Lodging was based on a scale of 1 to 5 according to the fol-
lowing criteria,. see page 7 for illustrations:
1 - almost all plants erect.
2 either all plants leaning slightly (less than
450) or a few plants down.
3- either all plants leaning moderately (approxi-
mately 450) or 25 to 50% of the plants down.
4 - either all plants leaning (more than 450) or
50 to 80% of the plants down.
5 - all plants down.
-5-
Shattering ratings were based on shattering of the border rows 14
days after maturity. The visual estimates were rated on a scale of 1 to
5 as follows:
1 - no shattering.
2 - 1 to 3% shattering.
3 - 4 to 8% shattering.
4 - 9 to 19% shattering.
5 - 20% or more shattering.
Plant height was determined as the average length of plants from the
ground to the top extremity at time of maturity.
Height of first pod was determined as the average height of the
lowest pods from the ground at maturity.
Seed size for each variety was determined from a composite sample of
all replications at a given planting date and location. Seed size is
reported as g per 100 seeds. Small, medium, and large seed size will be
8-12, 13-16, and 17-20 g/100 seed, respectively, and will have
approximately 5,700 to 3,800, 3,500 to 2,800, and 2,700 to 2,300 seeds
per pound, respectively.
Seed quality was based on a rating from 1 to 5 according to the
following scale: (1) very good, (2) good, (3) fair, (4) poor, and
(5) very poor. The factors considered were development of seed,
wrinkling due to late harvesting, and to excess rain.
Purple stain ratings were given to seed samples on a scale of 1 to 5
as follows:
1 - no purple staining.
2 - 1 to 3% purple staining.
3 - 4 to 8% purple staining.
4 - 9 to 19% purple staining.
5 - 20% or more staining.
-6-
7
:
'V
Lodging was based on a scale of 1 to 5 according
to the following criteria and illustrated by figures 1
through 5 respectively.
1 - almost all plants erect.
2 - either all plants leaning slightly (less than 450)
or a few plants down.
3 - either all plants leaning moderately (ap-
proximately 450) or 25 to 50% of the plants
down.
4 - either all plants leaning considerably (more
than 450) or 50 to 80% of the plants down.
5 - all plants down.
4
G .
, ?,
Ta ble 2. Physical Descriptions and Disease Resistance of Some Soybean Varieties Tested In18
Plant characteristics Reaction to individual diseases Nemaoersitne
Tar- Phyto- Purple
Pubes- Flower Pod Hilum Bacteria Wild- get phthora seed Cyt Rotko
Group Variety cence color color color pustule 'fire spot rot stain (Rac )W1Ma
IV RA 401
RA 480
Rax 25
Stevens
Wilstar 430
V Rax9
Rax 13
H-76-558
Bed ford
Bay
Essex
Forrest
WilIstar 550
HB-466DI-5
Terra-Vig 505
Deltapine 345
VI Lee 7 / 5/
Trac y-
Tracy M -
Centennial
Dayvis
RA 604
RA 680
Deltapine 506
Brysoy 
9
HB-468D1 -6
Gray
Tawny
Gray
Gray
Tan
Tan
Tan
Brown
Tawny
Gray
Gray
Tawny
Tawny
Tawny
Tawny
Tawny
Tawny
Tawny
Tawny*
'Tawny
Gray
Tawny
Tawny
Tawny*
Brown
Tawny
Purpl e
Purpl e
Purpl e
Purpl e
Purpl e
Purpl e
White
Whi te
Whi te
Purpl e
Purple
Whi te
Purpl e
White
Purpl e
Purpl e
Purpl e
Whi te
Whi te
Purpl e
Whi te
Purpl e
Purpl e
Purpl~e
Purpl e
Purpl e
Brown Black
Tan Black
Brown Brown
Buff
Lt.-Tan Brown
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Black
Buff
Black
Black
Gr. Bf .
Buff
Bl ack
Bf.,B1.
Black
Gr. BlI
Bl ack
Tan Black
Tan Black
Tan Black
Tan Bl ack
Lt.Tan Buff
Tan Bl ack
Tan Black
Brown Black
Buff- Imp.Ble
.Black
4'
Fff -
R.
R
R
R
R
R
R
MR
4/
Piu.
4/
R
R
R
R
R
4/
4/
4/
4/
4/
dii:
4/
rs
4/
4/
4/
R
MR
4/
4/
R
R
R
R
R
R
R
4/
R~
4'
4/
R
4'
R
R
4/
4/
R
MR
4/.
R
R
R
R
R
R
4/
rii.
4'
s
MR
R
R
s
MR
R
s
MR,
SrS
MR
MR
MR
MR
VR
MR
MR
R
R*
R
R
R.
VR
R
R
MR
MR
4'
4/
4/'
4'
MR
MR
MR.
MR
MR
R
MR
MR
MR
MR
MR
MR
MR
MR
MR
s
MR
R
s
s
R
R
R
3/
s
R
s
s
s
s.
s
s
s
R
s
R
R
s
R
s
s
MR
s
nts
4/
MR
s
MR
s
MR
R
MR
s
s
s
R
s
s
R
MR
MR
s
s
s
s
s
MR
s
s
4/
R
s
s
R
MR
s
s
s
MR
s
s
s
s
s
VS
s
s
s
I
co
I
Table 2. Continued
Plant characteristics Reaction to individual diseases
1  
Nematode resistance
1
Tar- Phyto- Purple
Pubes- Flower Pod Hilum Bacteria Wild- get phthora seed Cyst Root-knot
Group Variety cence color color color pustule fire spot rot stain Race 3) M.i.
6
Ma.6
Terra-Vig 606 White Gray 
Buff R R R R 
R S S S
H-76-587 Gray Purple 
Black R 4/ 4/ R 
4/ R S S
Gold Kist 49 White 
Brown Buff R 4/ 4/ 
4/ MR S R 
R
Coker 156 2/ Gray White Tan Buff 
R R 4/ R R 
S MR 4/
McNair 600 Tawny Purple Lt.TanBlack 
R 4/ 4/ S R 
S R
Green Seed 737 Tawny White 
Tan Black 4/ 4/ 
4/ R MR S 
4/ 4/
Green Seed 791 Gray White 
Tan Black 4/ 4/ 
4/ R MR S 
4/ 4/
VII Bragg Tawny 
White Tan Black R 
R R R S 
S R R
Braxton Tawny Purple 
Tan Black R R 
R R S 
S R R
Wright Tawny Purple 
Tan Black R R 
R 4/ S MR 
MR
Ransom Tawny Purple 
Tan Black R R 
R MS R S 
S S
Coker 237 Tawny White 
Tan Black R R 
4/ MR 4/ S 
S S
VIII Hutton Brown 
Purple Tan Black R 
R R S S 
S R S
Coker 338 Gray 
White Brown Brown 
R R 4/ S 
4/ S S 
S
Foster Gray Purple Tan Buff 
R 4/ R 4/ 4/ R R 
S
1
VR - very resistant; R- resistant; 
MR - moderately resistant; S- 
susceptible; VS - very susceptible.
These are ratings given these varieties by the breeders.
2
Sensitive to the 
herbicide metribuzin 
(Sencor and Lexon).
3
Resistant to Race 4 cyst nematode.
4
Data not 
available.
5
Tracy and Tracy M have good tolerance to the herbicide 2, 
4-DB.
6
Meloidogyne incognita (M.i.); Meloidogyne arenaria (M.a.)
I
SEED SOURCE FOR 1981
Soybean varieties grown in North Alabama tests are in Maturity
Groups IV, V, VI, VII, and VIII. The following is a list of the
varieties and lines with source of seed for 1981 listed by maturity
groups. For more information on these varieties see Table 2..
Maturity Group IV Varieties
BD 483 Big D Seed Co., Catlin, IL
Douglas Kansas State University, Manhattan, KS
K 1041 Kansas State University, Manhattan, KS
RA 401 Ring Around Research, Plainview, TX
RA 480 Ring Around Research, Plainview, TX
Rax 25 Ring Around Research, Plainview, TX
Stevens Helena Chemical Co., Selma, AL
Wilstar 430 Helena Chemical Co., Selma, AL
Maturity Group V Varieties
A 5474 Asgrow Seed Co., Marion, AR
A 5618 Asgrow Seed Co., Marion, AR
A 5939 Asgrow Seed Co., Marion, AR
Agripro 55 North American Plant Breeders, W. Memphis, AR
Bay USDA Delta Branch Exp. Sta., Stoneville, MS
Bedford USDA Delta Center, Portageville, MD
BD 501 Big D Seed Co., Catlin, IL
BD 502 Big D Seed Co., Catlin, IL
Deltapine 105 Delta and Pine Land Co., Scott, MS
Deltapine 345 Delta and Pine Land Co., Scott, MS
Essex Alabama Crop Improvement Assoc., Auburn, AL
Forrest Alabama Crop Improvement Assoc., Auburn, AL
H-76-558 Jacob Hartz Seed Co., Stutgart, AR
10-
Maturity Group V Varieties (continued)
HB-466DI-5
NK 76-1214
NK 77-0414
Rax 9
Rax 13
Terra-Vig 505-
Wilstar 550
Maturity Group
Brysoy 9
Centennial
Coker 156
Davis
Deltapine 416
Deltapine 506
Gold Kist 49
Green Seed 737
Green Seed 791
H-76-587
HB-468D1-6
Lee 74
McNair 600
NAPB 611
RA 604
RA 680
Terra-Vig 606
Tracy
Tracy M
Helena Chemical Co., Selma, AL
Northrup King Co., Bolivar, TN
Northrup King Co., Bolivar, TN
Ring Around Research, Plainview, TX
Ring Around Research, Plainview, TX
Terral-Norris Seed Co. Inc., Lake Providence, LA
Helena Chemical Co., Selma, AL
VI Varieties
Helena Chemical Co., Selma, AL
Alabama Crop Improvement Assoc., Auburn, AL
Coker's Pedigreed Seed Co., Hartsville, SC
Alabama Crop Improvement Assoc., Auburn, AL
Delta and Pine Land Co., Scott, MS
Delta and Pine Land Co., Scott, MS
Gold Kist Inc., Ashburn, 
GA
Green Seed Co., Gallatin, TN
Green Seed Co., Gallatin, TN
Jacob Hartz Seed Co., Stutgart, AR
Helena Chemical Co., Selma, AL
Alabama Crop Improvement Assoc., Auburn, AL
Northrup King Co., Bolivar, TN
North American Plant Breeders, W. Memphis, AR
Ring Around Research, Plainview, TX
Ring Around Research, Plainview, TX
Terral-Norris Seed Co. Inc., Lake Providence, LA
Alabama Crop Improvement Assoc., Auburn, AL
USDA Delta Branch Exp. Sta., Stoneville, MS
-11-
Maturity Group VII Varieties
Bragg Alabama Crop Improvement Assoc., Auburn, AL
Braxton USDA Delta Branch Exp. Sta., Stoneville, MS
Coker 237 Coker's Pedigreed Seed Co., Hartsville, SC
Ransom Alabama Crop Improvement Assoc., Auburn, AL
Wright Coastal Plains Exp. Sta., Tifton, GA
Maturity Group VIII Varieties
Agripro 80 North American Plant Breeders, W. Memphis, AR
Coker 338 Coker's Pedigreed Seed Co., Hartsville, SC
Foster Florida Agriculture Exp. Sta., Gainesville, FL
Hutton Alabama Crop Improvement Assoc., Auburn, AL
Matija 1 Joe Matija, Baldwin County, AL
-12-
- 13-
Table 3. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging and Shattering of
Soybean Varieties Planted May 13, 1981,on Sand Mountain Substation, Crossville
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.2 Ht. first pod
2  
Lodging
2  
Shattering
Bu./a. Date Date In. In. Rating Rating
Green Seed 737 53.5 a 07/13 10/03 29 5.8 1.3 1.0
Forrest 50.5 a-b 07/09 09/22 35 6.0 2.0 1.0
Green Seed 791 50.2 a-c 07/13 10/07 27 4.5 1.0 1.0
Deltapine 105 49.9 a-c 07/16 10/02 36 7.0 2.5 1.0
Essex 49.1 a-d 07/06 09/21 23 4.8 1.0 1.0
Rax-9 48.4 a-e 07/09 09/25 33 5.5 2.3 1.0
Wilstar 550 45.8 b-f 07/17 09/30 35 5.5 3.0 1.0
Deltapine 345 45.7 b-f 07/15 09/30 35 6.5 2.8 1.0
Bay 45.6 b-f 07/11 09/27 31 4.8 1.5 1.0
Terra-Vig 505 45.6 b-f 07/16 10/02 36 5.8 3.3 1.0
RA 604 44.8 c-g 07/17 10/12 39 6.5 3.0 1.0
H-76-558 44.2 d-h 07/10 09/28 35 4.8 3.8 1.0
Rax-13 43.5 d-i 07/24 10/09 40 7.0 3.8 1.0
Bedford 43.3 e-i 07/15 09/25 41 5.8 4.0 
1.0
RA 480 43.1 e-j 07/07 09/20 40 6.5 3.3 1.0
HB-466D1-5 42.8 e-k 07/10 09/21 36 5.3 2.8 1.0
Tracy M 42.7 e-k 07/14 10/12 37 6.3 4.0 1.5
Coker 156 42.3 f-l 07/20 10/13 34 6.3 2.0 1.0
Tracy 41.2 f-m 07/15 10/17 39 4.0 4.0 1.0
H-76-587 41.1 f-m 07/21 10/14 37 7.0 2.8 
1.0
Davis 40.8 f-m 07/29 10/08 40 6.3 3.8 1.0
2
Table 3. Continued
Variety Yield
I  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging Shatterin
Bu./a. Date Date In. In. Rating Rating
Terra-Vig 606 40.6 f-m 07/21 10/16 38 6.8 2.5 1.0
McNair 600 40.3 f-m 07/17 10/13 '38 5.8 3.5 1.0
Lee 74 40.2 f-m 07/21 10/13 33 6.8 2.5 1.0
Matija 1 40.2 f-m 08/05 10/20 45 6.5 5.0 1.0
RA 680 40.0 f-m 07/21 10/16 37 6.0 2.5 
1.0
Ransom 39.9 f-m 07/21 10/20 38 9.3 
2.0 1.0
A5939 39.9 f-m 07/11 09/24 35 7.0 3.5 
1.0
Braxton 39.4 g-n 07/27 10/20 44 8.0 2.8 1.0
A5618 39.0 g-o 07/10 09/24 31 5.8 1.3 1.0
NAPB 611 38.7 h-o 07/25 10/15 36 7.3 2.0 1.0
Centennial 38.3 i-o 07/21 10/16 38 6.3 3.5 
1.0
Hutton 38.0 i-p 07/29 10/20 40 7.0 4.5 1.0
N-K 77-0414 37.3 j-p 07/24 10/17 37 6.3 3.8 1.0
Wilstar 430 37.0 k-p 06/24 09/25 31 5.0 2.3 
1.0
Brysoy 9 36.8 1-p 07/17 10/18 39 7.3 4.5 1.0
RA 401 35.5 m-p 06/27 
09/16 31 7.3 
1.5 1.0
Stevens 34.2 n-p 06/23 09/16 34 5.0 3.0 1.0
Deltapine 506 33.7 o-p 07/21 10/16 40 7.3 3.8 
1.0
Big-D 501 33.3 o-p 06/24 09/22 31 4.8 3.0 
1.0
Big-D 483 32.5 p 06/23 09/19 31 5.3 
2.0 1.3
C.V.% = 8.3% L.S.D..05 = 4.48
1
Yields adjusted to 13% moisture 
and 60 pounds per bushel.
(P = .05).
Yields with a common letter are not different
2
An explanation of 
data and ratings 
is given on page 
5 of this report.
a
I
Table 4. Two-Year Averages for Yield-, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodgir
and Shattering of Soybean Varieties Planted May 10, 1980-1981, on Sand Mountain Substation, Cros
ville
Variety Yield
I  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shattering
Bu./a. Date Date In. In. Rating Rating
Del tapine 105 35.0 07/12 10/11 31 6.4 1.8 1.0
Forrest 33.9 07/08 09/24 29 4.9 1.5 1.0
Essex 32.4 07/04 09/24 21 4.4 1.0 1.0
Deltapine 345 31.6 07/11 10/05 31 5.9 1.9 1.0
Coker 156 30.9 07/18 10/21 30 6.0 1.5 1.0
RA 604 30.7 07/14 10/20 34 6.9 2.0 1.3
Bay 30.4 07/08 10/08 29 4.8 1.3 1.1
Tracy M 30.4 07/12 10/23 32 5.8 2.6 1.4
RA 680 30.4 07/18 10/24 33 6.1 1.8 1.0
Davis 30.3 07/25 10/16 35 6.1 2.4 1.4
Braxton 30.3 07/24 10/27 38 7.3 1.9 1.0
Terra-Vig 606 30.3 07/19 10/23 33 6.3 1.8 1.0
Hutton 29.9 07/28 11/02 36 6.9 3.0 1.0
Ransom 29.8 07/16 10/25 31 7.5 1.5 1.0
Bedford 29.8 07/12 09/26 36 5.8 2.5 1.0
McNair 600 29.6 07/14 10/21 33 5.4 2.3 1.0
Lee 74 29.1 07/17 10/23 28 5.8 1.8 1.0
Tracy 28.7 07/13 10/25 34 5.4 2.6 1.1
RA 480 28.1 07/06 09/22 33 6.3 2.1 1.0
Centennial 27.8 07/18 10/27 34 6.0 2.3 1.0
Deltapine 506 25.5 07/18 10/25 36 7.5 2.8 1.0
Big-D 483 23.5 06/18 09/11 26 4.3 1.5 1.8
Big-D 501 22.5 06/18 09/17 28 4.1 2.0 1.1
RA 401 20.5 06/20 09/11 26 5.1 1.3 1.5
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation 
of data and ratings 
is given on page 
5 of this report.
ng
s-
2
Tabl e 5. Three-Year Averages for Yield, First
Lodging of Soybean Varieties Planted
Bloom and Maturity Dates, Plant and Ffirst Pod
May 7, 1979-1981,on Sand Mountain Substation,
Heights, and
Crossville
Vari ety Yield
1  
First bloom
2  
Maturity
2
_ Plant"ht.
2  
Ht. firs
Bu./a. Date Da te In. In.Rating
Deltapine 105
Forrest
Essex
RA 604
Coker 156
Bay
Tracy M
Braxton
Deltapine 345
Tracy
Davis
RA 680
Terra-Vig 606
Bedford
Ransom
McNair 600
Hutton
Centennial
Lee 74
Deltapine 506
RA 401.
Big-D 501
Big-D 483
39.5
38.1
37.7
36. 0
35.9
35.8
35.5
35.3
35.3
34.7
34.6
34.5
34.5
34.4
34.0
33.8
33.2
33.2
32.7
29.9
23.5
23.3
22.3
07/13
07/09
07/06
07 /15
07/18
07/10
07/12
07/25
07/14
07/14
07/27
07 /18
07/19
07/15
07/15
07 /16
07/27
07/18
07/17
07/17
06/23
06/23
06/22
10/11
09/2 9
09/27
10/19
10/20
10/09
10/21
10/27
10/07
10/22
10/18
10/23
10/22
10/01
10/25
10/21
11/02
10/25
10/24
10/25
09/12
09/17
09/12
34
31
24
36-
31
31
33
38
34
34
36
34
35
39
32
34
36
36
28
36
26
29
26
6.8
5.3
5.2
7.1
6.2
05.1
5.1
7.7
6.3
5.3
6.2
6.7
6.4
6.3
6.2
7.2
6.4
5.8
7.8
4.8
3.9
3.9
2.2
1.9
1.4
2.3
1.9
1.5
2.7
2.2
2.0
2.6
2.8
1.8
2.2
2.8
1.8
2.3
3.1
2.4
2.1
2.6
1.5
2.1
1.6
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data 'and ratings 
is given on page 5 of this report.
Ta ble 6. Four-Year Averages
Lodging of Soybean
for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and
Varieties Planted May 9, 1978-1981s on Sand Mountain Substation, Crossville
Variety Yield First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod Lodg
Bu./a. Date Da te In. n. .Rtn
Essex
Coker 156
Forrest
Bay
RA 604
Tracy
RA 680
Deltapine 345
Bed ford
Centennial
Braxton
Davis
McNair 600
Ransom
Lee 74
Hutton
Deltapine 506
RA 401
37.3
36.6
36.0
35.8
33.4
33.3
33.3
33."1
32.9
32.8
32.8
32.1
32.1
32.1
32.0
31.6
29.5
23.6
07 /08
07/18
07/11
07/11
07/16
07/14
07/17
07/14
07/15
07/18
07 /25
07 /26
07/17
07/16
07 /18
07/27
07/17
06/28
09/26
10/17
09/2 7
10/04
10/15
10/21
10/21
10/03
09/29
10/22
10/17
10/19
10/24
10/23
09/13
25
32
33
33
37
35
36
35
40
37
40
37
35
34
30
37
37
27
5.5
6.4
5.9
4.9
7.8
6.3
7.1
6.3
6.4
6.8
8.3
6.6
6.9
8.1
6.3
8.1
8.1
4.6
1.3
1.9
2.0
1.6
2.2
2.5
1.9
2.0
2.6
2.3
2.3
2.7
2.3
2.0
2.2
2.9
2.6
1.4
1
Yields adjusted to .13% 
moisture and 60 pounds per 
bushel.
2
An explanation of data and ratings 
is given on page 5 of this report.
00
Table 7. Five-Year Averages
Lodging of Soybean
for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and
Varieties Planted May 7, 1977-1981,onSand Mountain Substation, Crossville
Variety Yiel d First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first od
2  
Lodgin
Bu./a. Date Date In. In. Rating
Coker 156 36.3 07/17 10/19 32 5.7 1.9
Essex 34.7 07/07 09/22 25 --- 1.3
Forrest 33.6 07/09 09/24 33 5.1 1.9
Tracy 33.3 07/13 10/21 35 5.7 2.5
Centennial 32.9 07/17 10/23 37 6.3 2.4
McNair 600 32.7 07/15 10/20 36 6.3 2.4
Hutton 32.6 07/25. --- 37 7.1 3.0
Lee 74 32.3 07/18 10/23 31 5.8 2.3
Deltapine 506 30.9 07/17 --- 37 7.1 2.6
Davis 30.3 07/24 10/16 37 5.8 2.6
N-N Lee 10.0 07/21 10/20 25 4.6 1.0
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings 
is given on page 5 of this report.
0
Table 8. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging and Shattering
3 
o
Soybean Varieties Planted May 28, 1981,on Sand Mountain Substation, Crossville
1 2 2
Variety Yield First bloom
2  
Maturity
2  
Plant ht. Ht. first pod Lodging
2
Bu./a. Date Date In. In. Rating
Deltapine 345 42.8 a 07/22 10/05 35 5.8 2.0
Forrest 42.5 a-b 07/17 10/02 33 6.8 2.0
Wilstar 550 41.7 a-b 07/22 10/08 36 5.3 2.5
Deltapine 105 41.1 a-c 07/21 10/07 36 5.0 2.5
Essex 40.4 a-d 07/14 09/27 23 5.0 1.0
Bay 40.2 a-d 07/19 10/04 31 4.3 1.0
Coker 237 38.7 b-e 07/27 10/15 38 7.5 2.3
Bedford 38.5 b-e 07/23 10/05 39 8.0 2.8
Coker 156 38.4 b-e 07/25 10/14 36 6.0 1.8
Tracy M 37.4 c-f 07/22 10/13 36 5.8 2.3
Davis 36.7 d-g 08/02 10/15 37 5.8 2.3
Terra-Vig 505 36.3 d-g 07/22 10/07 37 6.5 3.3
Tracy 35.5 e-g 07/24 10/13 36 5.8 2.3
Lee 74 35.3 e-g 07/27 10/15 33 7.0 2.5
Braxton 35.3 e-g 07/31 10/17 43 8.3 2.0
Ransom 34.3 f-g 07/26 10/16 39 8.8 2.0
Big-D 501 33.7 f-g 06/30 09/20 29 4.5 2.0
Deltapine 506 33.1 g 07/27 10/17 
41 6.8 3.0
Centennial 32.7 g 07/26 10/16 38 8.3 2.0
Hutton 28.4 h 08/02 10/20 41 9.0 3.5
C.V.% = 6.7% L.S.D.
05
= 3.5
0
1
Yields adjusted 
to 13% moisture 
and 60
(P = .05).
pounds per bushel. Yields with a common letter are not different
2
An explanation of data and ratings 
is given on page 5 of this report.
3
No shattering 
observed on any 
cultivars.
Table 9. Two-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging
and Shattering of Soybean Varieties Planted May 29, 1980-1981,on Sand Mountain Substation, Cross-
ville
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shattering
2
Bu./a. Date Date In. In. Rating Rating
Coker 237 30.3 07/30 10/30 32 7.4 1.6 1.0
Forrest 30.2 07/19 10/12 31 6.5 1.5 1.0
Deltapine 345 30.1 07/24 10/13 31 7.0 1.5 1.0
Deltapine 105 29.2 07/23 10/16 33 6.1 1.8 1.1
Braxton 28.5 08/03 10/31 37 8.1 1.5 
1.0
Essex 28.4 07/16 09/29 22 5.3 
1.0 1.4
Coker 156 28.3 07/29 10/21 31 
6.8 1.4 1.0
Bay 28.3 07/21 10/13 30 5.5 1.0 1.0
Davis 28.0 08/03 10/15 33 6.8 
1.9 1.0
Ransom 28.0 07/29 10/30 34 8.6 
1.5 1.0
Bedford 27.7 07/26 10/12 35 
7.8 1.9 1.1
Deltapine 506 27.0 07/30 11/01' 36 
7.9 2.9 1.0
Tracy M 26.8 07/26 10/24 
33 7.1 2.0 1.0
Lee 74 26.7 07/30 10/29 31 
8.3 2.4 1.0
Tracy 25.5 07/27 10/28 33 7.5 
2.3 1.0
Centennial 25.4 07/29 10/26 32 
8.6 1.8 1.0
Hutton 23.5 08/04 11/02 35 7.4 
2.4 1.0
Big-D 501 23.2 07/04 09/25 26 
4.8 1.5 1.3
1
Yields 
adjusted 
to 13%
moisture and 60 pounds per bushel.
2
An explanation of data 
and ratings is given 
on page 5 of this 
report.
I
Table 10. Three-Year Averages for Yield, First
Lodging of Soybean Varieties Planted
Bloom and Maturity Dates,
May 27, 1979-1981, on Sand
Plant and First Pod Heights, and
Mountain Substation, Crossville
1 2 222
Variety Yield First bloom
2  
Maturity Plant ht. Ht. first pod Lodging
Bu./a. Date Date In. In. Rating
Forrest 34.6 07/22 10/12 33 6.7 1.9
Deltapine 345 33.5 07/26 10/13 33 7.3 1.8
Coker 156 33.3 07/30 10/22 33 6.8 1.7
Braxton 32.9 08/04 10/30 38 8.7 2.1
Essex 32.8 07/18 09/30 25 5.9 1.6
Deltapine 506 32.3 07/31 10/30 37 8.3 2.9
Lee 74 32.0 07/31 10/28 33 8.3 2.7
Bedford 31.7 07/28 10/13 38 7.9 2.3
Davis 31.5 08/04 10/17 35 6.6 2.3
Ransom 31.4 07/30 10/29 35 8.8 1.9
Tracy M 31.4 07/26 10/21 34 6.8 2.3
Tracy 30.8 07/28 10/24 34 6.7 2.5
Centennial 30.2 07/30 10/25 35 8.8 1.9
Hutton 27.0 08/05 11/02 36 7.6 2.9
'Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings 
is given on page 5 of this report.
I
N)
Table 11, Four- and Five-Year Averages for. Yield, First Bloom and Maturity Dates., Plant and First Po
H eights, and. Lodging of Soybean Varieties Planted on Sand Mountain Substation, Crossvill~e
Va ri ety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. firstpL i
Bu./a. Date Date In. In.Ri
Four-Year Average Planting Date May 27, 1978-1981
Forrest
Coker 156
Deltapine 506
Lee 74
Essex
Braxton
Ransom
Davis
Centennial
Tracy
Hutton
30.8
30.8
30.2
29.5
29.1
28.7
28.4
28.0
28.0
27.8
24.9
07/22
07 /30
07/30
07/30
07/18
08/04
07/30
08/04
07/29
07/27
08/05
10/11
10/19
10/27
10/26
09/30
10/16
10/23
10/22
34
33
37
33
24
39
35
36
36
35
36
7.0
6.9
8.1
8.6
5.9
8.3
8.8
7.1
8.9
6.9
8.7
1.9
1.6
2.8
2.5
1.4
2.1
1.8
2.2
1.9
2.4
2.7
Five-Year Average Planting Date May 26, 1977-1981
Coker 156
Forrest
Lee 74
Ransom
Centennial
Tracy
Essex
Davis
Hutton
32.6
32.0
30.6
30.3
30.3
29.2
28.3
28.0
26.5
07/2 9
07/22
07/31
07/30
07/29
07/27
07 /19
08/03
08/05
10/20
10/11
10/26
10/24
10/22
10/01
10/18
33
33
33
35
35
35
23
35
36
6.1
6.4
7.8
7.8
8.3
6.0
5,3
6.3
7.8
1.6
1.9
2.8
1.,9
2.10
2.6
1.3
2.4
3.0
1
Yields adjusted 
to 13% moisture 
and 60 pounds 
per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
IA
Table 12. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and Lodging of Soybean
Varieties Planted July 1, 1981,on Sand Mountain Substation, Crossville
Variety Yield1 First bloom
2  
Maturity2 Plant ht.
2  
Ht. first od
2  
Lodng
2
Bu./a. Date Date In. In.
Coker 156 30.1 a 08/14 10/20 26 3.0 1.0
Coker 237 29.5 a 08/18 10/20 23 2.8 1.0
Wilstar 550 28.5 a-b 08/14 10/20 25 3.0 1.0
Deltapine 105 28.0 a-c 08/20 10/20 23 2.3 1.0
Tracy 27.1 a-c 08/16 10/.20 25 2.3 1.0
Davis 26.9 a-c 08/22 --- 28 4.0 1.3
Deltapine 345 26.8 a-c 08/13 10/20 25 2.3 1.0
Bedford 26.7 a-c 08/15 10/20 30 4.3 1.0
Bay 26.7 a-c 08/22 --- 24 1.0 1.0
Deltapine 506 24.5 b-d 08/14 10/20 27 2.0 1.5
Lee 74 24.2 b-d 08/20 10/20 22 2.7 1.7
Braxton 24.2 b-d 08/21 --- 25 3.5 1.0
Hutton 23.9 b-d 08/21 --- 25 3.0 1.0
Tracy M 23.2 c-e 08/14 10/20 22 2.0 1.0
Ransom 19.8 d-e 08/17 --- 22 2.0 1.0
Forrest 18.8 e 08/14 10/20 23 3.0 1.0
Big-D 501 25.6 a,c 08/12 10/02 23 1.7 1.0
C.V.%= 11.9% L.S.D..
05
= 4.3
Yields adjusted to 13% moisture and 60
(P = .05).
pounds per bushel. Yields with a common letter are not different
An explanation of data and ratings is given on page 5 of this report.
I
4 b
I
Table 13. Two-Year Averages of Yield, First Bloom and Maturity Dates, 
Plant and First Pod Heights, and
Lodging of Soybean Varieties Planted June 28, 1980-1981,on Sand Mountain Substation, 
Cross-
ville
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht- first pod
2  
Lodging
2
Bu./a. Date Date In. In. Rating
Coker 237 26.9 08/16 11/01 24 
4.9 1.0
Coker 156 26.3 08/13 10/25 24 4.0 1.0
Braxton 23.9 08/18 -- 
26 4.9 1.0
lutton 23.7 08/21 --- 27 
5.8 1.3
Bay 23.7 08/15 -- 24 
4.1 1.3
Davis 23.6 08/19 -- 26 5.5 1.4
Tracy 23.6 08/14 10/25 26 
4.5 1.4
Deltapine 105 23.6 08/15 10/21 25 4.2 
1.3
Bedford 23.3 08/14 10/19 29 5.5 
1.5
Deltapine 506 23.1 08/14 10/27 27 5.0 
1.9
Deltapine 345 22.6 08/11 10/18 25 4.3 
1.0
Tracy M 22.2 08/13 10/24 24 3.6 1.5
Lee 74 21.7 08/18 11/01 24 
5.1 1.6
Ransom 21.4 08/16 --- 23 4.4 1.0
Forrest 18.3 08/11 10/17 23 4.4 1.0
1Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data 
and ratings is given 
on page 5 of this report.
N)
(U,I
Table 14. Three-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and
Lodging of Soybean Varieties Planted June 28, 1979-1981,on Sand Mountain 
Substation, Crossville
1 2 2 2
2
Variety Yield First bloom. Maturity 
Plant ht. Ht. first p
Bu./a. Date Date In. In.
Braxton 29.7 08/19 27 5.5 1.3
Coker 156 29.2 08/14 10/25 24 4.1 1.3
Hutton 27.2 08/21 --- 28 6.2 
2.2
Bedford 27.2 08/15 
10/22 31 6.0 
2.2
Deltapine 345 27.1 08/13 10/22 26 
4.7 1.4
Davis 27.0 08/20 --- 27 
5.4 1.9
Deltapine 506 26.8 08/14 10/29 27 5.3 
2.5
Ransom 26.4 08/16 --- 25 5.0 1.7
Tracy 26.0 08/14 10/24 27 4.8 
2.3
Tracy M 25.7 08/12 10/24 24 3.9 2.2
Lee 74 25.0 08/18 11/01 24 
5.2 2.2
Forrest 24.4 08/11 10/21 25 5.3 
1.7
1
Yields adjusted to 
13% moisture and 60 
pounds per bushel.
2
An explanation of data 
and ratings is given on 
page 5 of this report.
l\
I
Table 15. Four- and Five-Year Averages for Yield, First Bloom Date, Plant
and First Pod Heights, and Lodging of Soybean Varieties Planted
on Sand Mountain Substation, Crossville
Variety Yield
1  
First bloom
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2
Bu./a. Date In. In. Rating
Four-Year Averages, Planting Date June 26, 
1978-1981
Braxton 28.1 08/18 29 6.2 1.3
Coker 156 27.7 08/14 25 4.7 1.3
Deltapine 506 26.8 08/14 30 6.4 2.3
Davis 26.3 08/19 . 30 6.4 1.7
Hutton 26.3 08/20 30 7.1 1.9
Ransom 25.7 08/15 27 6.0 1.5
Tracy 25.2 08/13 29 5.9 1.9
Lee 74 24.2 08/16 27 5.9 1.9
Forrest 23.9 08/10 28 5.9 1.5
Five-Year Averages, Planting Date June 25, 1977-1981
Coker 156 29.5 08/13 27 4.5 1.3
Hutton 28.2 08/19 31 6.8 2.1
Davis 28.1 08/18 30 6.3 2.0
Ransom 28.0 08/14 28 6.2 1.5
Forrest 27.0 08/09 28 5.5 1.6
Lee 74 26.3 08/15 28 . 5.9 2.3
Tracy 26.2 08/12 30 5.6 2.1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
-27-
Tabl e 16. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights. Lodging and Shatteringo
Soybean Varieties Planted May 7, 1981,o-n Tennessee Valley Substation, Belle Mina
1 2 2 2 2 2
Variety Yield First bloom Maturity Pl ant ht. Hit, first pod LodginSatrn
Bu./a. Date Date In. In. RatingRtn
Forrest
Deltapine 105
Deltapine 345
Green Seed 737
Green Seed 791
NAPB 611
Davis
Wilstar 550
Agripro 55
RA 604
Bed ford
RA 680
A5474
Terra-Vig 606
Lee 74
Coker 156
McNair 600
N-K 76-1214
Centennial
Ransom
HB-468D1-6
N-K 77-0414
Deltapine 506
51.9
51.3
50.0
50.0
49.8
49.8
49.6
49.3
48.7
48.5
48.2
47.6
46.8
46.5
46.4
46.3
46.0
46.0-
45.4
45.0
45.0
44.8
44.6
a
a-b
afto
a-c
a-c
a-c
a-d
a-d
a-e
a-e
a-e
a-f
a-g
a-g
a-g
a-g
a-g
a-g
a-9
a.-h
a-h
a-h
07/02
07/09
07/07
07/09
07/10
07/18
07/22
07/09
07/07
07/12
07/07
07/14
07/03
07 /16
07/15
07/14
07/10
07/1 5
07/13
07/16
07 /13
07/21
07 /15
10/07
10/07
10/07
10/19
10/22
10/29
10/205
10/07
10/22
10/07
10/22
10/07
10/16
10/22
10/22
10/19
10/25
10/29
10/24
10/25
10/25
10/29
34
34
36
31
28
34
44.
32
35
38
37
40
32
39
33
40
40
42
41
39
38
41
40
.2.8
3.3
4.5
3.5
3.0
4.3
3.8
3.0
3.0
4.8
5.5
4.5
5.0
4.5
3.8
4.8
4.8
4.0
5.3
5.8
5.3
4.8
5.0
2.3
3.3
2.3
1.8
1.8
2.8
3.5
3.0
3.3
3.0
2.8
2.8
2..,0
3,3
3.3
3.3
3. 5.
3.8
2.8
2.8
4.0
3.8
4.3
1.0o
1.0
.1.0o
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.3
1.0
1.0
1'.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
co
0I
Table 16. Continued
Variety Yield
I  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shattering
Bu./a. Date Date In. In. Rating Rating
A5618 43.9 b-h 07/07 10/07 32 4.3 2.3 1.0
Gold Kist 49 43.8 b-h 07/20 10/19 39 4.5 4.8 
1.0
Deltapine 416 43.3 c-i 07/11 10/29 47 5.5 3.5 1.0
Braxton 42.5 c-j 07/23 10/29 45 5.0 
2.8 1.0
RA 401 41.8 d-k 06/25 09/22 39 5.0 2.5 
1.0
Tracy 41.2 e-1 07/10 10/25 40 3.3 3.8 1.0
RA 480 40.4 f-l 07/01 10/07 38 5.0 3.0 1.0
Matija 1 39.1 g-1 08/07 10/29 40 5.0 4.0 1.0
Tracy M 37.4 h-m 07/09 10/22 38 4.3 
3.8 1.0
Rax-25 36.1 i-n 06/25 09/14 39 6.0 3.0 
1.0
Hutton 35.3 j-o 07/22 10/28 42 5.0 
5.0 1.0
Bay 34.6 k-o 07/08 
10/07 23 1.5 
3.0 1.0
K 1041 34.0 l1-o 06/25 09/11 35 3.3 2.3 
2.0
Big-D 502 31.3 m-o 06/26 09/22 
38 4.5 3.0 1.0
Big-D 501 30.7 m-o 06/25 09/22 37 4.0 2.5 1.0
Big-D 483 29.5 n-o 
06/25 09/11 39 
3.5 2.5 1.0
Essex 29.4 n-o 07/01 10/07 17 1.8 1.8 
1.0
Douglas 28.4 o 06/25 09/11 33 3.8 2.5 
1.0
C.V.% = 10.6% L.S.D..
0 5
= 6.3
1
Yields adjusted 
to 13% moisture 
and
(P = .05).
60 pounds per bushel. Yields with a common letter are not different
An explanation of data and ratings is given on page 5 of this report.
I
Table 17. Two-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging
and Shattering of Soybean Varieties Planted May 4, 1980-1981,on Tennessee Valley Substation, 
Belle
Mina
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shatterin
Bu./a.. Date Date In. In. Rating Rating
Forrest 37.4 06/29 09/30 29 2.8 1.6 1.0
Deltapine 105 35.9 07/06 10/05 30 3.5 2.3 1.0
Bedford 34.7 07/04 09/30 32 5.0 1.9 
1.0
Deltapine 345 34.3 07/04 10/05 30 4.3 1.9 1.0
RA 604 33.9 07/06 10/18 34 5.0 2.3 1.0
RA 680 33.2 07/12 10/22 34 4.5 2.8 1.0
Davis 32.7 07/18 10/16 
40 4.9 2.4 1.1
Coker 156 31.0 07/13 10/22 34 4.8 
2.8 1.0
Terra-Vig 606 30.8 07/14 10/20 37 
5.0 3.0 1.0
Centennial 30.6 07/11 10/26 36 
4.9 3.0 1.0
RA 401 30.6 06/22 09/17 31 4.1 1.8 1.4
Lee 74 30.3 07/12 10/22 29 4.3 2.6 
1.0
RA 480 30.2 06/26 09/24 34 4.8 2.3 1.0
McNair 600 29.7 07/09 10/18 34 4.9 2.6 1.1
Deltapine 506 29.5 07/12 10/26 36 5.8 3.5 1.0
Ransom 29.1 07/14 10/24 33 6.0 2.3 1.0
Braxton 29.0 07/22 11/01 42 5.5 2.4 1.0
Gold Kist 49 28.3 07/16 10/21 39 5.9 3.9 1.0
Tracy 28.2 07/09 10/24 36 3.8 3.5 1.0
Big-D 501 26.5 06/22 09/17 32 3.6 1.9 1.8
Tracy M 26.1 07/06 10/21 34 5.0 2.9 1.0
Bay 25.4 07/03 09/30 23 2.1 2.0 1.0
Big-D 483 24.3 06/22 09/11 31 3.5 1.8 1.8
Hutton 24.2 07/21 11/00 39 5.3 3.6 1.0
Essex 24.1 06/28 09/24 18 2.4 1.4 1.0
2
Yields adjusted to 
13% moisture and 60 
pounds per bushel.
An explanation of data and ratings is given on page 5 of this report,
q2
Table 18. Three-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights,
Lodging and Shattering
3 
of Soybean Varieties Planted May 6, 1979-1981,on Tennessee Valley
Substation, Belle Mina
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2
Bu./a. Date Date In. In. Rating
Deltapine 105 41.2 07/09 10/06 35 4.5 
3.1
Forrest 38.9 07/02 09/30 33 
3*7 2.6
RA 604 37,3 07/10 10/15 37 
6.1 2.6
Deltapine 345 37.1 07/07 10/05 36 
5.3 2.1
Bedford 36.0 07/08 10/01 36 
5.8 2.9
Braxton 35.6 07/22 10/29 42 6.3 2.6
RA 401 35.6 06/28 09/16 35 
4.8 1.8
Deltapine 506 35.5 07/14 10/20 39 
6.1 3.4
Davis 34.8 07/21 10/15 
39 5.6 3.2
Lee 74 34.7 07/14 10/20 32 5.3 
2.8
RA 680 34.7 07/14 10/17 37 
5.7 2.8
McNair 600 34.5 07/12 10/17 36 
5.7 2.8
Coker 156 34.4 07/15 10/19 
37 5.7 2.8
Ransom 34.3 07/15 10/23 36 7.2 
2.5
Big-D 501 34.1 06/28 09/17 35 
3.9 2.1
Terra-Vig 606 33.9 07/16 10/16 
39 5.6 3.5
Essex 33.4 07/01 09/27 
23 3.3 1.9
Bay 32.8 07/06 10/02 30 
3.4 2.3
Tracy 32.7 07/10 10/19 38 
4.5 3.3
Tracy M 32.6 07/07 10/18 
36 5.6 2.9
Centennial 32.5 07/13 10/19 
39 6.0 3.2
Big-D 483 29.8 06/29 09/09 
33 3.7 2.0
Hutton 29.5 07/22 10/29 
40 6.2 4.1
Yields adjusted to 13% moisture 
and 60 pounds per bushel.
3
An explanation of data and ratings 
is given on page 5 of this 
report.
Shattering was a problem on early varieties Big-D 
483, Big-D 501 and RA 401 with 1-4% shattered.
Y
n
r
3
3
3
3
3
4
3
3
3
3
3
3
3
3
Table 19. Four-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights,
Lodging and Shattering of Soybean Varieties Planted May 7, 1978-1981,on Tennessee Valley
Substation, Belle Mina
1 2 22 2
Variety Yield First bloom Maturity Plant ht Ht. first pod Lodging
Bu./a. Date Date In. In. Rating
Forrest 35.2 07/03 10/04 35 3.9 2.7
RA 401 34.6 06/30 09/24 37 5.4 1.8
Essex 33.1 07/02 10/01 26 3.8 2.0
Deltapine 345 32.6 07/08 10/11 38 5.6 2.3
RA 604 32.5 07/11 10/14 39 6.2 2.6
Bedford 32.4 07/08 10/03 39 6.1 3.2
Coker 156 30.9 07/16 10/18 38 5.8 2.5
Braxton 30.7 07/22 10/30 42 6.9 2.4
Deltapine 506 30.5 07/15 10/21 40 6.4 3.2
Bay 30.5 07/06 10/06 32 4.1 2.4
Lee 74 30.2 07/14 10/19 34 6.0 2.5
RA 680 30.1 07/14 10/19 38 6.5 2.5
Davis 30.0 07/21 10/09 40 5.8 2.9
Ransom 29.9 07/17 10/23 38 7.6 2.3
McNair 600 29.3 07/12 10/13 38 6.3 2.9
Tracy 28.9 07/10 10/17 40 4.8 3.0
Centennial 28.7 07/13 10/21 39 6.3 2.8
Hutton 26.4 07/23 10/30 41 7.1 3.8
1
Yields adjusted to 
13% moisture and 60 pounds 
per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
3
Four-year average shattering 
of 2% for RA 401.
(4
CA
N)
Five-Year Averages
Lodging of Soybean
for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and
Varieties Planted May 6, 1977-1981,on Tennessee Valley Substation, Belle Mina
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2
Bu./a. Date Date In. In. Rating
Forrest 31.5 07/03 09/30 34 4.4 2.5
Essex 30.4 07/02 09/28 26 4.3 1.9
Coker 156 29.6 07/14 10/18 38 5.4 2.3
Lee 74 28.5 07/13 10/18 34 5.3 2.4
Deltapine 506 28.3 07/13 10/20 39 5.8 2.9
McNair 600 27.6 07/10 10/14 38 5.8 2.6
Centennial 27.1 07/12 10/20 40 5.9 2.6
Davis 26.7 07/19 10/10 40 5.6 2.6
Tracy 26.7 07/09 10/17 39 4.5 2.8
Hutton 24.6 07/21 10/28 41 6.2 3.5
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
I
( J
Table 20.
Table 21. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging and Shattering
Soybean Varieties Planted May 25., 1981, on Upper Coastal Plain Substation, Winfield
.2 .22
Variety Yield
1  
First bloom Maturity Plant ht.. Ht. first pod Lodging
Bu./a. Date Date In. In. Rating
Coker 156 24.6 a 07/20 10/09 33 9.3 1.0
Deltapine 105 24.6 a 07/16 09/17 33 8.8 2.0
Essex 24.4 a-b 07/11 09/13 20 5.5 1.0
A5939 24.4 a-b 07/13 09/17 34 8.8 1.8
HB-466D1-5 23.7 a-c 07/12 09/15 33 6.5 2.3
Tracy 23.5 a-c 07/17 10/09 36 8.3 3.0
H-76-558 23.5 a-c 07/11 09/17 30 7.8 1.5
RA 480 23.3 a-c 07/11 09/13 31 8.0 1.0
RA 604 23.1 a-c 07/16 09/26 35 8.8 2.0
A5474 22.9 a-d 07/14 09/13 29 7.8 1.5
Deltapine 506 22.5 a-e 07/22 10/14 37 9.0 2.8
Forrest 22.4 a-e 07/12 09/17 30 6.3 1.3
Green Seed 737 22.3 a-e 07/17 09/28 28 8.8 1.5
RA 680 22.2 a-f 07/22 10/09 34 9.0 1.5
Green Seed 791 21.9 a-f 07/17 10/02 27 8.3 1.0
Rax-9 21.6 a-f 07/11 09/17 31 7.3 1.5
Agripro 55 21.3 a-f 07/15 09/17 33 8.3 1.8
Terra-Vig 606 21.2 a-f 07/22 10/14 34 9.0 1.5
Wilstar 550 21.1 a-f 07/18 09/20 30 5.8 1.8
Terra-Vig 505 21.1 a-f 07/15 09/27 32 8.0 2.0
Bedford 21.0 a-g 07/17 09/17 40 8.5 2.3
Rax-13 20.6 a-h 07/23 10/02 41 10.0 2.5
Ransom 20.5 a-h 07/22 10/14 36 10.5 1.0
Lee 74 20.3 a-h 07/22 10/14 31 8.0 18
RA 401 20.2 a-h 07/06 09/09 30 6.8 1.0
Deltapine 345 20.1 a-h 07/15 09/15 31 9.3 1.3
Big-D 502 20.1 a-h 07/06 09/11 29 5.5 1.3
Tracy M 19.6 a-h 07/17 10/07 35 7.5 3.0
f
11
Cr
3[
3[
2(
31
31
3(
33
3!
3(
3;
31
Table 21. Continued
Variety Yield
I  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2
Bu./a. Date Date In. In. Rating
Davis 19.5 a-h 07/24 09/24 37 8.3 1.8
H-76-587 19.5 a-h 07/22 10/11 35 9.5 2.0
N-K 76-1214 19.5 a-h 07/21 10/14 38 10.0 2.3
Hutton 19.3 b-h 07/27 10/16 41 10.8 2.0
Centennial 19.3 b-h 07/21 10/14 36 10.0 1.5
Bay 19.3 b-h 07/12 09/15 23 5.0 1.0
Gold Kist 49 19.3 b-h 07/23 10/14 41 10.5 3.0
Brysoy 9 19.2 b-h 07/17 10/06 35 9.8 2.3
HB-468D1-6 19.2 b-h 07/23 10/14 34 9.0 2.0
Rax-25 19.2 b-h 07/06 09/09 26 4.3 1.0
Deltapine 416 18.6 c-h 07/23 10/09 41 10.5 2.0
Big-D 501 18.5 c-h 07/06 09/13 30 5.8 1.3
Bragg 17.8 d-h 07/26 10/14 41 11.0 2.8
K 1041 17.5 e-h 07/06 09/13 33 4.3 1.0
Douglas 17.4 e-h 07/06 09/13 26 4.0 1.0
Braxton 17.1 f-h 07/27 10/14 38 10.5 1.8
Wilstar 430 17.0 f-h 07/07 09/15 29 5.5 1.0
Big-D 483 15.8 g-h 07/06 09/13 30 5.0 1.5
Stevens 15.7 h 07/06 09/11 31 5.3 1.0
C.V.% = 14.6% L.S.D..
05
= 4.2
Yields adjusted to 13% moisture
(P = .05).
and 60 pounds per bushel. Yields with a common letter are not different
2
An explanation of data 
and ratings is given on 
page 5 of this report.
No shattering observed on any cultivars.
(A)
(71
!
Table 22, Two-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Ldig
and Shattering of Soybean Varieties Planted May 19, 1980-1981,on Upper Coastal Plain Substain
Winfield
Varity iel
1  
Fist loo
2  
Mtrt
2  
Plant ht,.
2  
Ht. first pod 
2  
Lodgig Sateig
Bu./ety Yiald First Datem 
Maturity n.RanR
Bu./a. Date Date In. In, Ra tintd My 1, 180-
Deltapine 105
Coker 156
Deltapine 506
Essex
RA 480
Tracy
RA 680
Terra-Vig 606
RA 604
Forrest
Centennial
Ransom
Tracy M
RA 401'
Lee 74
Deltapine 345
Bragg
Braxton
Hutton
Bed ford
Big-D 501
Bay
Davi's
Gold Kist 49
Big-D 483
16.1
15.9
15.7
15.6
15.6
14.8
14.8
13.9
13.8
13.7
13.4
13.3
13.0
12.8
12. 7
12.7
12.6
12.6
12.1
12.1
12.1
11.9
11.8
11.6
10.1
07/14
07 /19
07 /25
07 /08
07 /08
07/18
07/20
07/21
07/17
07 /11
07/20
07/20
07/17
07/04
07/23
07/13
07/27
07/27
07/28
07/17
07/04
07 /10
07/23-
07/23
07 /04
.09/20
10/20
10/27
09/13
09/15
10/23
10/18
10/23
09/30
09/17
10/24
10/27
10/20
09/09
10/24
09/17
10/24
10/28
10/29
09/17
09/11
09/19
09/29
10/24
09/11
30
30
35
20
28
*32
31
31
32
26
32
31
32
24
30
29
37
33
35
34
26
24
33
37
25
8.5
9.0
9.6
6.4
7.6
8-.6
9.3
10.
9.1
6.4
9.9
10.5
8.4
5.3
8.9
9.4
11.0
10.4
10.4
8.9
5.1
6.1
8.8
11.0
5.0
1.5
1.0
1.*9
1.0
1.0
2.0
1.3
1.3
1.5
1.1
1.3
1.0
2.0
1.0
1.*4
1.1
1.9
1 .4
1.5
1.6
1.1
1.0
1.4
2.0
1.3
1.0
1o.
1.0
1.1
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0o
1.9
1.0
1.0
*1.0
1.0
1.0
1.0
1.9
1.0
1.0
1.0
1,9
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings is given on page .5 of this-report.
I
L43
cn
I
Three 'Year Averages for Yield, First Bloom and Maturity
Lodging and. Shattering of Soybean Varieties Planted May
Substation, Winfield %
Dates, Plant and
18, 1979-1981, on
First Pod Heights,
Upper Coastal Plain
Variety Yield First bloom
2
MaturIty PlanthtHt. first pod Loding Shattering
Bu. /a'. Date Da te InIn*Ratig R
Coker 156
Deltapine 506
Deltapine 105
Ransom
RA 680
Braxton
Tracy
Lee 74
Hutton
RA 604
Bragg
Terra-Vig 606
Centennial
Essex
Tracy M
Deltapine 345
Davis
Forrest
Bay
Bedford
RA 401
Big-D 501
Big-D 483
23.4
22.5
22.*2
22.0
21.9
21.6
21.4
20.9
20.7
20.6
20.5
20.3
20.1
19.5
19.5
*19.2
18.7
18.4
17.1
16.5
16.1
13.9
9.8
07/21
07 /25
07/16
07/20
07/21
07 /27
07/18
07/23
07/29
07 /19
07/27
07 /22
07/2 1
07/11
07 /17
07 /14
07/25
07 /13
07 /13.
07/18
07/03
07/05
07102
10/20
10/23
09/25
10/26
10/18
10/26
10/20
10/22
10/30
10/03
10/23
10/21
10/22
09/17
10/18
09/22
10/05
09/22
09/2 2
09/22
09/07
09/11
09/04
32
37
33
32
32
34
34
31
36
35
37
34
34
23
33
33
34
30
29
37
29
30
28
8.08
9.0
8.3
9.4
8.3
rloo
110.
8.0
8.7
9,5
8.8
9.8
9.5
9.2
6.6
8.2
8.6
8.9
6.9
6.6
8.6
6.3
6. 3
5,3
1.1
1.8
1.7
108
1.3
1.-8
2.1
1.8
2.6
1.67
2.5
1.5
1.3
1.'1
2.i1
1.6
1.*5
1.3
1.1l
2.0
1.0
1.01
1.5
1.0
1.*0
1,0 1
1.0O
1.1
1.0
100
1.0
1.0
1.0
1.0
1.0
1'.
1.3
1.1
1.0
1.0
100
1.0
1.0
2.3
2.0
2.9
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings 
is given on page 5 of this report.
Table 23.
IA
Table 24. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, Lodging 
and Shattering of
Soybean Varieties Planted June 15, 1981,on Upper Coastal Plain Substation, Winfield
Variety Yield
1  
First bloom
2  
Maturity2 Plant ht.
2  
Ht. first od
2  
Lodging2 Shatterin
Bu./a. Date Date In. In. Rating Rating
Deltapine 105 28.2 a 08/06 09/26 29 6.8 1.0 1.0
Wright 28.0 a-b 08/08 10/14 37 9.0 
2.5 1.0
Ransom 27.4 a-b 08/06 10/14 32 7.3 1.0 1.0
Tracy 27.0 a-c 08/06 10/04 34 7.5 2.5 
1.0
Bragg 26.9 a-c 08/10 10/14 35 9.8 1.3 1.0
Coker 237 26.9 a-c 08/08 10/12 31 8.3 1.3 1.0
Coker 156 26.7 a-c 08/06 10/09 29 5.5 1.3 1.0
Deltapine 506 26.7 a-c 08/06 10/10 35 7.0 1.8 1.0
Foster 26.6 a-c 08/12 10/14 35 9.8 1.5 1.0
Davis 25.9 a-c 08/10 10/05 34 8.0 1.3 
1.0
Tracy M 25.9 a-c 08/06 10/06 31 6.5 
2.5 1.0
Bedford 25.8 a-c 08/06 09/27 31 6.8 1.0 
1.0
Braxton 25.6 a-c 08/09 10/14 34 7.8 1.0 1.0
Deltapine 416 25.6 a-c 08/08 10/14 36 8.5 
1.0 1.0
Centennial 25.0 a-c 08/06 10/14 32 9.0 
1.5 1.0
Coker 338 23.8 a-c 08/10 10/19 36 9.5 1.3 
1.0
Lee 74 23.1 a-c 08/06 10/04 26 7.0 1.5 1.0
Big-D 501 22.5 a-c 08/06 09/25 24 3.0 1.3 
1.8
Agripro 80 21.1 a-c 08/14 10/17 37 9.3 
2.0 1.0
Forrest 20.7 a-c 08/06 09/26 28 5.5 1.0 1.0
Hutton 20.3 a-c 08/09 10/14 34 8.5 
1.5 1.0
Essex 20.2 b-c 08/06 09/25 17 3.8 
1.0 1.0
Bay 19.4 c 08/06 09/25 21 2.8 
1.0 1.0
C.V.% = 18.6% L.S.D..
05
= 6.5
00
Yields adjusted to 13% moisture and
(P = .05).
60 pounds per bushel. Yields with a common letter are not different
1 U/ L) 0
An explanation of data and ratings is given on page 5 of this report.
Table 25. Two-Year Averages for Yield, First Bloom and Maturity Date, Plant and First Pod Heights, Lodging
and Shattering of Soybean Varieties Planted June 29, 1980-1981,on Upper Coastal Plain Substation,
Winfield
Variety Yield' First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shattering
2
Bu./a. Date Date In. In. Rating Rating
Deltapine 105 21.2 08/09 10/04 27 6.5 1.0 
1.0
Ransom 21.1 08/11 10/22 28 7.0 1.0 1.0
Tracy 19.9 08/09 10/17 30 6.9 1.8 
1.0
Braxton 19.9 08/13 10/22 30 7.5 1.0 
1.0
Coker 237 19.7 08/12 10/20 28 7.5 1.1 
1.0
Bedford 19.6 08/10 10/06 30 7.1 1.0 1.0
Deltapine 506 19.5 08/11 10/19 32 7.1 1.4 1.0
Tracy M 19.3 08/09 10/11 29 5.9 1.8 1.0
Coker 156 18.9 08/11 10/19 26 5.9 1.1 
1.0
Davis 18.6 08/15 10/14 30 7.4 1.1 1.0
Centennial 18.6 08/11 10/22 30 8.9 ' 1.3 1.0
Lee 74 17.5 08/11 10/17 ' 25 6.6 1.3 1.0
Forrest 16.7 08/09 10/05 27 5.8 1.0 1.0
Hutton 16.3 08/14 10/28 32 7.6 1.3 1.0
Big-D 501 15.7 08/09 10/04 25 3.8 1.1 1.4
Bay 15.6 08/09 10/05 23 3.9 1.0 1.0
Essex 15.0 08/09 09/27 17 3.9 1.0 1.1
C)
Yields adjusted 
to 13% moisture 
and 60 pounds per bushel.
2
An explanation 
of data and 
ratings is given 
on page 5 
of this report.
Table 26. Three-Year Averages for Yield, First Bloom and Maturity Dates, Plant and First Pod Heights,
Lodging and Shattering of Soybean Varieties Planted June 26, 1
979
-1981,n Upper Coastal Plain
Substation, Winfield
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
2  
Shattering
2
Bu./a. Date Date In. In. Rating Rating
Ransom 23.2 08/16 10/25 . 27 6.6 1.3 1.0
Deltapine 506 21.8 08/15 10/23 29 6.5 1.8 1.0
Braxton 21.5 08/19 10/25 28 6.5 1.2 1.0
Bedford 21.0 08/16 10/15 30 7.5 1.8 1.0
Forrest 20.6 08/15 10/14 27 5.9 1.4 1.0
Davis 20.4 08/21 10/20 28 6.3 1.6 1.0
Coker 156 20.4 08/16 10/22 25 5.4 1.3 1.0
Centennial 19.8 08/16 10/23 28 7.9 
1.6 1.0
Hutton 19.2 08/20 10/30 30 7.3 1.6 1.0
Tracy 19.1 08/14 10/18 28 6.0 2.4 1.0
Lee 74 18.8 08/15 10/21 23 6.2 1.6 1.0
Tracy M 17.7 08/14 10/16 26 5.4 2.3 1.0
Essex 16.2 08/14 10/07 17 4.0 1.0 1.1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
1
o :
Table 27. Four-Year Averages for Yield, Maturity Date, Plant Height, Lodging
and Shattering of Soybean Varieties Planted on Upper Coastal Plain
Substation, Winfield
Variety Yield
I  
Maturity
2  
Plant ht.
2  
Lodging
2  
Shattering
2
Bu./a. Date In. Rating Rating
Four-Year Averages, Early Planting Date May 25, 1978-1981
Coker 156 21.1 10/22 33 1.1 . 1.0
Deltapine 506 20.6 10/25 37 1.9 1.0
RA 680 20.1 10/20 33 1.2 1.1
Ransom 19.9 10/25 32 .1.6 1.0
Braxton 19.9 10/28 35 1.6 1.0
Lee 74 18.9 10/23 32 1.7 1.0
Tracy 18.8 10/23 35 1.9 1.0
Centennial 18.4 .10/24 35 1.3 1.1
Bragg 18.3 10/25 39 2.4 1.0
Essex 18.1 09/17 23 1.1 1.3
RA 604 18.0 10/06 35 1.5 1.0
Hutton 17.9 10/28 36 2.2 1.0
.Deltapine 345 16.4 09/23 34 1.4 1.0
Davis 16.3 10/07 35 1.4 1.0
Forrest 16.2 09/20 32 1.3 1.0
Bay 15.0 09/21 30 1.1 1.0
RA 401 14.7 09/07 29 1.0 2.3
Bedford 14.3 09/20 37 1.9 1.0
Five-Year Averages, Late Planting Date June 24, 1978-1981
Ransom 21.7 10/24 28 1.2 1.0
Deltapine 506 20.9 10/22 32 1.8 1.0
Braxton 20.8 10/26 31 1.1 1.0
Coker 156 20.2 10/23 26 1.2 1.0
Davis 19.3 10/19 
31 1.4 1.0
Forrest 19.2 10/11 29 1.4 1.0
Centennial 19.1 10/24 30 1.6 1.0
Lee 74 18.6 10/21 26 1.5 1.0
Tracy 18.5 10/19 30 2.2 1.0
Hutton 18.4 10/30 32 1.4 1.0
Essex 15.4 
10/05 19 
1.0 1.1
1
Yields adjusted to 13% moisture 
and 60 pounds per bushel.
2
An explanation of data and ratings is given on page 5 of this report.
Table 28. Five-Year Averages for Yield, Maturity Date, Plant Height, Lodging
and Shattering of Soybean Varieties Planted on Upper Coastal Plain
Substation, Winfield
Variety Yield
I  
Maturity
2  
Plant ht.
2  
Lodging
2  
Shattering
2
Bu./a. Date In. Rating Rating
Five-Year Averages, Early Planting Date May 
9, 1977-1981
Coker 156 23.2 10/20 32 1.1 1.0
Deltapine 506 22.6 10/23 37 1.9 1.0
Lee 74 20.8 10/21 32 1.8 1.0
Bragg 20.4 10/24 39 2.4 1.0
Hutton 20.1 10/27 37 2.3 1.0
Centennial 20.0 10/22 35 1.3 1.1
Tracy 19.8 10/20 34 1.9 1.0
Davis 18.6 10/06 35 1.4 1.0
Essex 17.9 09/16 23 1.1 1.3
Forrest 16.9 09/19 32 1.2 1.0
Five-Year Averages, Late Planting Date June 22, 1977-1981
Ransom 22.2 10/25 30 1.5 1.0
Coker 156 21.2 10/24 27 1.4 1.0
Davis 19.8 10/18 32 1.8 1.0
Centennial 19.7 10/23 31 1.8 1.0
Forrest 19.2 10/09 29 1.5 
1.0
Hutton 19.2 10/30 33 1.8 1.0
Lee 74 19.0 10/21 27 1.8 1.0
Tracy 18.1 10/17 31 2.4 1.0
Essex 16.6 10/04 19 1.1 1.1
1
Yields adjusted to 13% moisture 
and 60 pounds per bushel.
2
An explanation of data and.ratings is 
given on page 5 of this report.
-42-
From USDA Uniform V
Table 29. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and Lodging of Soybean
Varieties or Strains Planted May 7, 1981,on Tennessee Valley Substation, Belle Mina
Variety Yield
I  
First bloom
2  
Maturity2 Plant ht.
2  
Ht. first pod
2  
Lodging2
Bu./a. Date Date In. In. Rating
Forrest 54.2 07/05 10/07 29 3.3 2.3
D78-3238 52.6 07/05 10/07 25 
1.7 2.3
D75-5090 52.1 07/07 10/07 28 2.7 
3.7
V75-345 50.7 07/07 10/07 34 4.0 
4.3
D77-5169 49.4 07/07 10/07 31 3.7 
3.0
R75-579 49.0 07/07 10/07 22 3.0 2.0
S77-7865 48.5 07/06 10/07 27 2.7 3.0
N77-179 47.2 07/03 10/07 22 2.7 1.7
V76-600 46.5 07/04 10/07 25 3.0 2.0
R74-511 45.8 07/07 10/07 22 1.7 1.0
Nathan 43.2 07/07 10/07 31 3.7 4.0
Essex 35.7 07/02 10/07 20 1.7 1.7
C.V.% = 16.2% L.S.D..
0 5 
= N.S.
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data 
and ratings is given on 
page 5 of this report.
I
4 .
(A
From USDA Preliminary VI
Table 30. Yield, First Bloom Date, Plant and First Pod Heights, and Lodging of Soybean
Planted May 7, 1981,on Tennessee Valley Substation, Belle Mina
Varieties or Strains
Variety Yield
1  
First bloom
2  
Plant ht.
2  
Ht first pod
2  
Loding
2
Bu./a. Date In. In. Rating
Bedford
N73-1102
R79-167S
N79-606
D79-6057
R79-413S
Centennial
DM9-10158
GA78-324
N79-280
D78-5412
LA79-923
GA77-8
R79-248
D79-10515
N79-461
R76-730J
R79-179S
078-6029
N79-645
S77-281
079-5951
53.5
52.7
52.0
51.7
50.3
49.6
49.5
49.5
49.4
49.2
49.0
48.7
48.4
48.1
48.0
47.8
47.7
47.5
47.0
46.9
46.2
46.2
07/09
07/12
07/14
07/10
07/17
07/18
07/16
07/14
07/20
07/10
07/19
07/20
07/12
07/18
07/23
07/10
07/14
07/12
07/14
07/12
07/11
07/14
35
42
41
30
47
43
42
36
45
32
48
45
39
41
41
35
30
36
36
34
34
44
4.0
3.5
4.5
4.5
5.0
5.0
4.5
4.0
5.0
3.5
3.0
3.0
4.0
4.5
4.0
4.0
4.5
5.0
4.5
3.0
4.0
2.5
2.0
2.0
3.5
1.0
4.5
3.5
3.5
2.5
3.0
1.5
4.0
3.5
3.5
3.0
3.5
2.5
3.0
4.0
4.0
1.5
3.0
5.0
I
4-t
Table 30. Continued
Variety Yield
1  
First bloom
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
Bu./a. Date In. In. Rating
R77-238S 44.6 07/19 40 3.5 5.0
N79-491 44.4 07/09 31 3.0 1.0
R79-772 43.5 07/19 42 5.5 4.0
GA77-607 42.9 07/21 44 4.0 3.5
GA78-618 42.9 07/17 28 3.5 2.0
077-5813 41.9 07/20 40 5.0 3.0
D78-6299 41.5 07/14 42 5.0 4.5
N79-2272 41.3 07/16 44 4.5 5.0
079-6105 40.9 07/12 43 4.5 3.0
078-5813 40.7 07/14 37 4.0 4.5
078-5520 40.4 07/09 42 5.5 4.0
GA77-171 36.7 07/23 37 2.5 1.5
GA77-653 36.5 07/12 43 3.5 3.5
079-6174 36.2 07/12 36 4.5 3.5
C.V.% = 11.1% L.S.D..
0 5 
= N.S.
1
Yields adjusted to 13% moisture and 60 pounds per bushel.
2
An explanation of data and 
ratings is given on page 5 
of this report.
L'
From USDA Uniform VI
Table 31. Yield, First Bloom and Maturity Dates, Plant and First Pod Heights, and Lodging of Soybean
Varieties or Strains Planted May 7, 1981,on Tennessee Valley Substation, Belle Mina
1 2, 22
Variety Yield
1  
First bloom
2  
Maturity
2  
Plant ht.
2  
Ht. first pod
2  
Lodging
Bu./a. Date Date In. In. Rating
N75-2213 46.4 07/22 10/14 42 4.7 3.0
D77-6166 46.4 07/17 10/14 39 3.7 3.0
D77-12 46.1 07/14 10/14 41 4.0 4.7
D78-5502 45.1 07/10 10/14 30 4.3 3.3
D76-9665 44.9 07/20 10/14 44 3.0 3.7
D78-5576 44.2 07/10 10/14 33 3.7 2.0
R74-39K 43.8 07/21 10/14 41 5.0 3.0
Centennial 42.6 07/19 10/14 39 4.3 3.0
D77-6057 41.5 07/10 10/14 28 3.7 2.3
Tracy-M 39.6 07/11 10/14 39 3.3 3.7
Jeff 39.3 07/17 10/14 38 4.7 4.7
N77-114 37.4 07/09 10/14 28 3.7 1.0
C.V.% = 12.8% L.S.D.
0 5 
= N.S.
1
Yields adjusted to 13% moisture 
and 60 pounds per bushel.
2
An explanation of data and ratings 
is given on page 5 of this report.
O>)
I
.47-
Table 32. Seed Size of Soybean Varieties and Lines as Affected by Planting
Date and Location When Grown in North Alabama in 1981
Seed Size (g/100 seed)
Maturity Belle Mina Crossville Winfield
Variety Group May 7 May 13 -May 27 July 1 May 25 June 15
RA 401
RA 480
RAX 25
K 1041
Douglas
Stevens
Wilstar 430
Big D 483
RAX 9
RAX 13
A 5474
A 5618
A 5939
Deltapine 105
H-76-558
Bedford
Bay
Essex
Forrest
Wilstar 550
HB-46601-5
Terra-Vig-505
Big D 501
Big D 502
Deltapine 345
Agripro 55
N-K77-0414
N-K 76-1214
IV
IV
IV
IV
IV
IV
IV
IV
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
13.0
16.9
9.8
12.3
12.1
13.1
16.9
16.1
16.4
13..5
20.2
15.2
15.6
13.9
12.3
13.8
16.1
14.4
13.0
12.7
15.4
19.2
17.7
21.3
19.4
14.2
13.9
19.7
16.5
16.9
16.2
15.5
19.5
15.7
15.2
14.8
16.6
14.7
17.6
15.9
12.9
17.0
--m
-- a
14.0
18.4
16.0
13.8
14.1
15.1
19.2
15.4
13.5
dm 
-10.
dw
13.
4w w
1.2
so
am
am 
13.5
10.8
13.0
12.2
11.2
1.7
11.7
.m,
14.9
15.1
13.0
17.0
17.9
14.2
18.7
16.0
12.5
11.5
16.3
15.2
13.4
12.4
12.3
17.1
13.9
12.6
11.7
14.1
12.4
14.3
16.1
13.4
12.3
--.,
-- 11.7
-48-
-- 4w
11.2
,--
,--
,--
,--
,--
,--
,--
10.2
13.2
11.0
9.8
12.9
--,
Table 32. Continued
Seed Size (g/100 
seed)
Maturity Belle Mina Crossville Winfield
Variety Group May 7 May 13 May 27 July 1 May 25 June 15
Lee 74 VI 13.1 13.9 12.8 12.4 12.7 12.2
Tracy VI 16.4 17.4 17.0 14.4 15.4 14.3
Tracy M VI 17.2 18.2 18.0 15.1 16.1 14.9
Centennial VI 13.3 13.4 12.9 -- 12.3 11.1
Davis VI 16.4 14.7 10.4 12.7 13.2 12.7
RA 604 VI 17.0 16,.5 -- - 13.6 --
RA 680 .VI 14.4 14.1 - - 12.4 --
Deltapine 506 VI 12.9 13.9 13.8 12.7 12.8 12.6
Deltapine 416 VI 15.1 -- .- 13.2 10.9
Brysoy-9 VI -- 17.4 -- -- 15.0 --
HB-46801-6 VI 15.6 -- -- - 14.9 --
Terra-Vig 606 VI 13.9 15.4 - -- 12.8 --
H-76-587 VI - 9.9 -- -- 9.9 --
Gold Kist 49 VI 14.0 -- - -- 12.9 --
Coker 156 VI 11.9 13.4 12.2 11.9 11.7 10.4
McNair 600 VI 13.2 13.2 ..-..
Green Seed 737 VI 15.7 16.9 13.2 --
Green Seed 791 VI 15.9 15.8 -- 13.2 --
NAPB 611 VI 13.6 13.2 
.-- -. --
Bragg VII -- -- -- -- 13.6 11.4
Braxton VII 12.2 17.2 9.2 16.7 13.5 13.2
Ransom VII 14.7 16.2 13.7 13.9 14.2 12.9
Coker 237 VII .-- 13.9 12.9 -- 11.2
Hutton VIII 15.0 15.4 15.0 14.9 14.0 12.8
Table 33. Seed Quality Ratings
I 
on Soybean Varieties and Lines Grown in 
North
Alabama in 1981
Seed quality rating by location and planting date
Maturity. Belle Mina Crossville 
Winfield
Variety Group May 7 May 13 May 27 
July 1 May 25 June 15
RA 401 IV 1 2 
- - 1 -
RA 480 IV 2 2 
- - 1 -
RAX 25 IV 1 
2 -
K 1041 IV 2 -
- - 4 -
Douglas IV 2 
- - - 3 
-
Stevens IV 
2 - - 2 
-
Wilstar 430 IV. 
3 - 2 -
Big D 483 IV 2 
3 - - 2 
-
RAX 9 V - 1 
- - 1 -
RAX 13 V - 1 
- 1 -
A 5474 V 1 -
- 2 -
A 5618 V 1 1 
- - - -
A 5939 V - 1 
- - 2
Deltapine 105 V 1 1 
1 1 1
H-76-558 V -
1 - - 1 -
Bedford V 1 1 
1 1 1 1
Bay V 1 1 
1 1 2 1
Essex V 2 1 
1 - 1 1
Forrest V 1 1 
1 1 1 1
Wilstar 550 V 1 1 
1 1 1 -
HB-466DI-5 V - 2 
- - 1 -
Terra-Vig-505 V - 1 
1 - 1 -
Big D 501 V 2 3 
3 - 2 1
Big D 502 V . 2 -
- - 2 -
Deltapine 345 V 1 1 
1 1 1 -
Agripro 55 V 1 -
- - .1 -
N-K 77-0414 V 
1 1 -
- - -
N-K 76-1214 V 1 -
- - 1 -
-50-
Table 33. Continued
Seed quality rating by location and planting date
Maturity Belle Mina Crossville Winfield
Variety Group May 7 May 13 May 27 JulIy 1 May 25 June 15
Lee 74 VI 1 1 1 1 1 1
Tracy VI 1 1 1 1 2 1
Tracy M VI 1 1 1 1 1 1
Centennial VI 1 1 1 - 1 1
Davis VI I 1 1 1 1 1
RA 604 VI 1 1 - - 1 -
RA 680 VI 1 1 - 1 -
Deltapine 506 VI 1 1 1 1 1 1
Deltapine 416 VI 1 - - - 2 1
Brysoy 9 VI - 1 - - 1. -
HB-46801-6 VI 1 - - - 1 -
Terra-Vig 606 VI 1 1 - - 1 -
H-76-587 VI - 1 - 1
Gold Kist 49 VI 1 - - - 2
Coker 156 VI 1 1 1 1 1 1
McNair 600 VI 1 1 - - -
Green Seed 737 VI 1 2 - - 1 -
Green Seed 791 VI 1 1 - - 1 -
NAPB 611 VI 1 1 
- -
Bragg VII - - 1 1
Braxton VII 1 1 1 2 2 1
Wright VII-- - - - 1
Ransom VII 1 2 1 1 2 1
Coker 237 VII - - 1 1 - 1
Hutton VIII 1 1 1 1 2 1
Coker 338 VIII - - - - 2
Agripro 80 VIII - - - - - 2
Matijal VIII 1 1 
- - - -
Foster VIII - - - - - 1
1
Seed quality rating based on rating of 1 
to 5 where I is very good and 5 is
very poor quality. See page 6.
Table 34. Seed Purple Stain Ratings
I 
on Soybean Varieties and Lines 
Grown in
North Alabama in 1981
Purple seed stain rating by location and 
planting date
Maturity Belle Mina Crossville 
Winfield
Variety Group May 7 May 
13 May 27. July 1 May 25 
June 15
RA 401 IV 
2 3 -
- 2
RA 480 IV 
2 3 -
2 -
RAX 25 IV 
2 - -
- 2
K 1041 IV 
2 - -
- 3 -
Douglas IV 
2 - -
- 2 -
Stevens IV -
5 - -
2 -
Wilstar 430 IV 
- 3 -
- 2 -
Big D 483 IV 
2 3 -
- 2
RAX 9 V 
- 1 -
2 -
RAX 13 V -
1 - -
2 -
A 5474 V 
2 - -
- 2
A 5618 V 
2 2 - -
-
A 5939 V 
- 1 -
- 2 -
Deltapine 105 V I 
1 1 1 1 
1
H-76-558 V -
1 - - 2 
-
Bedford V 2 
1 1 1 
2 1
Bay V 2 
1 1 1 2 
1
Essex V 
2 2 2 
- 2 1
Forrest V 2 
2 2 1 1 
1
Wilstar 550 V 
1 2 1 
1 1 -
HB-466DI-5 V -
1 - - 1 
-
Terra-Vig 505 V -
1 1 -
1 -
Big D 501 V 
2 3 3 
- 2 2
Big D 502 V 
2 -
- - 2 
-
Deltapine 345 V 1 
1 1 1 2 
-
Agripro 55 V 1 
- - - 1 
-
N-K 77-0414 V 
1 1 -
- - -
N-K 76-1214 V 1 
- - - 1 
-
-52-
Tabl 34. Continued
Purple seed stain rating -by location and-plantingdate
Maturity Belle Mina Crossville Winfield
Vari ety Group May 7 May- 13 May 2 July I1 May 25' June 15
Lee 74
Tracy
Tracy M
Centennial
Davis
RA 604
RA 680
Deltapine 506
Deltapine 416
Brysoy 9
HB-468D1-6
Terra-Vig 606
H-76-587
Gold Kist 49
Coker 156
McNair 600
Green Seed 737
Green Seed 791
NAPS 611
Bragg
Braxton
Wright
Ransom
Coker 237
Hutton
Coker 338
Agripro 80
Ma tija 1
Foster
iivi
vi
vi
vi
vi
vi
Vivi
vi
vi
vi
vi
nVI
vi
vi
vi
vi
vi
vi
VIl.
vii
vii
vii
vii
vii
viii
viii
viii
viii
VIII.
1
2
2
1
1
1
1
1
1
1
1
1
1
I
I
1
I
2
1
1*
1
2
1
I
1
I
I
1
1
1
1
I
I
I
I
"1
I
I
1
1"
I
2
1
1
I
1
1
1
1
1
1
1
1"
2.
2
1
1
2
2
2
2
2
2
2.
1
1
I
*2
1
1
1
II
1
.1
1
1
Purple seed stain 
rating is based 
on scale of 1 to
stain to 5 having greater than 20% with staining.
5 with 1 having
See page 6.
,53
no purpl e
~UAe~l~~~ L;I'I~\ UI 1 I
Table 34
Acknowledgment
The author wishes to express his appreciation to the following
Experiment Station personnel for their help and cooperation in compiling
this report.
J. T. Eason
M. E. Ruf
Sand Mountain Substation
Crossville, Alabama
W. B. Webster
V. H. Calvert
Tennessee Valley Substation
Belle Mina, Alabama
R. A. Moore, Jr.
Upper Coastal Plain Substation
Winfield, Alabama
William Hearn
Systems Analyst
Res. Data Anal. Ad.
Auburn University
Auburn University, Alabama
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