) if c
ALABAMA
SOYBEAN VARIETY TESTS
1971
Donald L. Thurlow
April 1972
Department of Agronomy and Soils
Departmental Series No. 5
AGRICULTURAL EXPERIMENT 
STATION
AUBURN UNIVERSITY
E. V. Smith, 
Director
Auburn, Alabama

INTRODUCTION
Before a soybean variety is considered 
for planting, it should be evaluated 
at
a number of locations and planting dates and 
over a period of years. This will tend
to average the differences in soil and 
climatic conditions that occur throughout
the State. The most critical factor in soybean 
production is moisture and the most
critical moisture period is during pod development and filling. 
Since soybeans are
highly photoperiodic and maturity date of a particular variety does not vary greatly
from year to year, then varieties from more than one maturity group must be evaluated,
EXPERIMENTAL PROCEDURES
A randomized block design in 4 replications was used at each of 6 locations.
One to three planting dates were used at each location with the first planting at
the optimal time for maximum yield. All locations were on units of the Auburn
University Agricultural Experiment Station. All plots were 4 rows wide and 20 ft
long with 16 ft of 2 center rows harvested for yield determinations. All plots were
planted with a John Deere Flexi Planter with double disc openers. Row width varied
from 36 inches to 42 inches depending on location.
SEASONAL CONDITIONS
Early in the 1971 season moisture was good and adequate stands were obtained at
all plantings. Moisture was good during the early growth at all locations and
probably excessive for the heavy soil at Black Belt Substation. Late season moisture
was adequate in 1971 at all locations. Conditions were different during the 1968
and 1969 seasons as there was moisture stress at most locations during 
late pod fill,
DATA RECORDED
Yield of soybeans determined by hand harvesting the 2 center rows of 
each plot
was threshed with a plot thresher. The yields were adjusted to 13% moisture 
and
converted to bushels (60 lb.) per acre.
Maturity was taken as the date when the pods are dry and most of the leaves have
dropped. Under most conditions, the stems are also dry.
Lodging was based on a scale of 1 to 5 according to the following criteria:
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 (approximately 45
?
) 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 badly.
Shattering notes were taken on the border rows 14 days after maturity. The
estimates were based 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 - over 20% shattering.
Plant height was determined as the average length of plants in a plot from the
ground to the top extremity at time of maturity.
Height of first pod was determined as the average height of pods from ground at
time of maturity.
Seed size for each variety was determined from a composite sample from all
replications at a given planting date and location. Seed size is reported as number
of seed per bushel (60 lb.).
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 con-
sidered are development of seed, wrinkling damage, and brightness. Much of the poor
quality reported was due to late harvesting and to excessive rain.
2
Purple stain ratings were given to seed samples on a scale of I to 5 as follows:
I - no purple staining.
2 - 1 to 3% purple staining.
3 - 4 to 8% purple staining.
4 - 9 to 19% purple staining.
5 - over 20% purple staining.
VARIETY DATA
The entries included in these tests were released varieties prior to 1971 when
a number of additional strains were entered. These strains were in their late stages
of development in the USDA Regional Testing Program. They were all yielding above
standard varieties in their maturity group and all have good nematode resistance.
Soybean varieties grown in Alabama fall in Maturity Groups V, VI, VII, and VIII.
The following are a list of the varieties and strains, with source of seed, tested
over the past 4 years by maturity groups. For more information of individual varietie
see Bulletin 413.1-
Very Early Varieties - Maturity Group V
Dare Alabama Foundation Seed Stock Farm, Thorsby, Ala.
York Tennessee Seed Products, Corp. Nashville, Tenn.
D68-128 USDA Delta Branch Experiment Station, Stoneville, Miss.
Ear Varieties - Maturity Group VI
Davis Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Hood Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Lee 68 Alabama Foundation Seed Stock Farm, Thorsby, Ala.
McNair 600 McNair Seed Co., Laurinburg, N. C.
Pickett 71 USDA Delta Branch Experiment Station, Stoneville, Miss.
D64-4636 USDA Delta Branch Experiment Station, Stoneville, Miss.
3
Mid season Varieties - Maturity 
Group VII
Bragg Alabama Foundation Seed Stock 
Farm, Thorsby, Ala.
Coker 208 Coker Pedigreed Seed Co., Hartsville, 
S. C.
McNair 800 McNair Seed Co., Laurinburg, 
N. C.
Ransom Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Semmes Alabama Foundation Seed Stock 
Farm, Thorsby, Ala.
Late Varieties Maturity Group VIII
Coker 318 Coker Pedigreed Seed Co., Hartsville, 
S.* C.
Hampton 266A Coker Pedigreed Seed Co.., Hartsville, 
S. C.-
F63-4000 USDA Delta Branch Experiment Station, Stoneville, 
Miss.
The author wishes to express
Emmett Car.den, F. T. Glaze, S. E.
growing and harvesting of variety
ACKNOWLEDGEMENT
appreciation to Superintendents J. K. Boseck,
Gissendanner, Robert Moore, and Aubrey Smith for
tests.
1/ Soybean Production---Recent Research Findings, Auburn University 
Agricultural
Experiment Station, Bulletin 413.
4
Table 1. Yield of Soybean Varieties Tested at the Black Belt Substation-
Avera elanting date
May 15 June 7
1-yr . .2-yr. 3-yr. '4-yr. T-yr. 2-yr. 3-yr. 4-yr. 1-yr.
Variet 19
7 
2. 70-71 69-71 -7I 197L1' 70-71 69-71 68-71 1971
Bu./A. Bu.A. Bu.fA. BulA Bu. A. Bu.IA. 
Bu 7ABu./A. Bu A.
Dare 38.1 ab 35.0 32.2 31.7 33.8 bc 30.9 29.6 27.3 22.9 bcde
Hood 35.2 bc 31.7 29.3 29.2 28.0 
ef 27.6 26.2 22.4 20.1 cde
McNair 600 37.9 ab 33.5 .--- ---- 35.3 ab 29.7 ---- o --- 0 21.7 bcd 1
Davis 33.6 bc 31.7 29.5 30.0 35.6 ab 30.6 27.7 27.0 25.2 abc
Lee 68 33.8 bc 33.9 31.6 31.8 30.9 cde 26.9 26.7 25.7 21.0 bede
Pickett 71 33.3 bc 30.4 -- ---- 31.8 bcde 26.4 24.5 abcd
McNair 800 31.5 c 28.2 28.0 -a-- 30.8 cde 25.5 25.6 ""eas 19.9 cde
Bragg 31.9 c 27,4 27.5 28.3 34.4 abc 27.7 28.0 25.6 25.1 abc
Semmes 26.4 d 25.9 25.6 27.0 28.2 def 24.6 24.4 22.8 25.,6 ab 2. 98 1.
Ransom 41.0 a ..--- -- - "6000- 38.1 a "mea "a- .- - 28.2 a
Coker 208 24.4 d 22.7 24.3 24.5 25.9 f 
21.9 21.1 21.5 19.5 de 1. 73 1.
F63-.4000 54.7 bc 28.4 --- -.- 32.3 bed 25.2 .-... ' 21.7 bcde( 8.
Coker 318 26.3 d 22.8 24.1 24.4 32.2 bcd 25.4 25.5 23.9 25.7 ab 
1. 98 1.
Hampton 266A 18.1 e 18.3 21.5 22.5 20.1 g 19.6 20.9 21.6 18.2 e 1. 62 
1.
/I Yields adjusted to 13%
2'/ Yields followed by the
moisture and 60 pounds per bushel.
same letter are not significantly different at .05 probability level.
variation was 10.2, 8.1, and 14.0%, respectively, for 1st, 2nd, and 3rd planting dates ini91
Coefficient of
If
Table 2. Maturity Date, Lodging, Plant Height and Height of First 
Pod of Soybean
Crown on Black Belt Substation, 17?
Varieties by Planting Dates When
Maturity date Lodging rat ing Plant he ight Hd
Planting Pant 
Plantin l
Variety 1st 2nd 
3rd 1st 2nd 3rd 1st 
2nd 3rd 1st
n. .In. In. In. In.
Dare Sept 28 Sept 30 
Oct 13 1.4 2.4 1.8 35 
29 24 6.3
Hood Sept 30 Oct 2 Oct 11 2.5 
2.2 1.5 31 24 21 4.8
McNair 600 Oct 5 Oct 8 Oct 12 1.5 1.8 1.3 
37 34 23 4.9
Davis Oct 6 Oct 12 Oct 16 
2.5 2.3 1.5 38 35 22 3.6
Lee 68 Oct 7 Oct 10 Oct 14 2.6 2.6 2.3 
31 27 21 5.3
Pickett 71 Oct 11 Oct 14 Oct 18 2.9 3.0 2.9 31 
29 23 4.6
McNair 800 Oct 12 Oct 12 Oct 18 2.0 1.5 1.0 
38 27 17 6.5
Bragg Oct 15 Oct 18 Oct 21 2.5 2.3 1.4 42 34 
25 6.8
Semmes Oct 17 Oct 18 Oct.19 2.1. 1.9 1.0 37 
33 23 6.8 6. 44
Ransom Oct 18 Oct 21 Oct 22 1.6 1.3 1.1 35 30 22 6.3 
5. 36
Coker 208 Nov 7 Nov 8 Nov 8 1.3 1.6 1.0 31 29 19 
6.4 6. 35
F63 4000 Oct 19 Oct 20 Oct 23 3.8 2.5 1,3 40 30 23 6.0 6. 39
Coker 318 Oct 21 Oct 26 Oct 28 1.5 1.4 1.0 49 39 26 11.5 1. .
Hampton 266A Nov 8 Nov 8 Nov 8 2.4 1.9 1.8 41 37 .26 9.5 6. 36
1/ Planting dates were May 19,
June 8, and June 29 for 1st, 2nd, and 3rd plantings, respectively.
2/ Lodging ratings were on a scale from 1 to 5 according to
1 = almost all plants erect.
2 = all plants down badly.
%ID
Table 3. Seed Quality and Seed Size of Soybean Varieties by Planting Dates When
Grown on Black Belt Substation, 197121
Variet
Dare
Hood
McNair 600
Davis
Lee 68
Pickett 71
McNair 800
Bragg
Semmes
Ransom
Coker 208
F6 3w 4000
Coker 318
Hampton 266A
Sed ual' 
y...
Planting
1st 2nd 3rdt
2
2
2
3
3
3
2
3
4
2
4
2
2
5
3
3
2
3
4
4
2
3
4
3
4
3
2
4
.Purple st
7
in
1st 
2nd 
3rd
2
2
1
2
4
3
4
3
3
3
5
4
4
5
2
2
I
1
I
1
2
2
1
1
5
I
2
5
1
2
1
2
1
1
2
2
1
2
4
1
3
4
I -UILrY CL~LIE~ ~L~=W- -- - - _ . J P L I* -. -
2
1
1
2
1
1
1
1
1
4
3
4
1/ Planting dates were May 19, June 8, and June 29 for 1st, 2nd, and
respectively.
2/ Seed quality ratings were on a scale from I to 5 according to 1
s very poor.
3Purple stain ratings were on a scale from 1 to 5 according to 1=
staining and 5= over 20% purple staining.
3rd plantings,
very good and
no purple
-_I -
OMMOONWAIM
Number of seed
per bushel
Planting
Ise nd 3rd
Thous. Thous. hos
227 235 272
193 199 209
245 219 243
220 195 237
218 229 245
252 221 231
257 264 262
203 213 225
213 225 254
177 195 205
161 156 158
179 194 205
235 229 211
153 155 156
KY 1~ hrr ~3 rr ~
Table 4. Matu ty 
Date and Yield of 
Soybean Varieties 
Tested at the Brewton 
Field
1971D '
Soybean yield by average planting dates
Maturity dates ,% May 13 June1.2
Pl anti
Variety 
1s
Dare
Hood
4cNair 600
Davis
Lee 68
Pickett 71
MtcNair 800
Bragg
Seminves
Ransom
Coker 208
F63-4000
Coker 318
Hampton 266A
Sept. 17
Sept,.21
Oct. 5
Sept. 28
Oct. 5
Oct. 8
Oct. 5
Oct. 8
Oct..8
Oct. 12
Oct. 20
Oct. 13
Oct. 22
Oct. 22
L yr. 2-yr. 3-yr. 1-yr. 2-yt. 3yr. 4-yr.
2nd 19712 68-71 67-71 19712/ 70-71 69-71 6871
Bu,,./A. Bu./A.Bu./ A. Bu/A. Bu..JA.Bu.IA.Bu./A.
Sept, 27 40.2 cd 41.6 38.8 25.4 abc 25.1 24.6 26.5
Oct; 1 42.0 bc 48.1 22.4 28.0 a 32.1 28.8 30.5
Oci Oct. 3 07 cd ---- 89a 3.
c 37-.2a6-Oc t .3 4 2 .7 b e 4 5 .2 4 3 .9 2 7 .7 a 3 2 .1 3 0 .7 3 2 .7
Oct.5 36.0 ef 35.8 34.0 25.8 ab 25.4 25.1 25.5
Oct,5 37.8 de --- 0 .0--W 25.0 abcd 27.6
Oct..3 42.9 bc---- -- ------ 25.7 ab 32.1 29.9
Oct..8 31.2 gh 35.0 36.2 20.9 de 28.2 28.1 30.6
Oct. 3 32.9 fg 34.0 33.3 25.9 a 25.5 24.8 26.1
Oct a8 47.5 a ---- ---- 
28.0Oa .w .. ?... , .
Oct.11 39.5 cde 37.6 --- 21.4 cde 29.8 31.4 31.9
Oct. 11 46.7 ab --- 22.7 bed 28.9---------
Oct. 22 27..4 h 26.6 --- _- 18.1 e 22.9 29.8 30.0
Oct. 22 40.7 cd 38.8 40.0 22.0 bcde 33.3 33.2. 34.2
1/ Yields adjusted to 13% moisture and 60 pounds per bushel.
2I Yields followed by the same letter are not significantly different 
at .05
lity level. Coefficient of variation was 7.5 and 10.7, respectively, for
2nd planting dates in 9Il -:
N3/ planting dates were May 18 and June 22 for 1st and 2nd plantings. in 1971,
tively.
8
probab i?
1 st and
respec-
.h ~~k
Table 5. Lodging, Plc t Height, Height of First 
Pod, Seed Quality, and Seed Size of Vari
Lo d i n g 
2 /S 
e e dP
Ldigratin... 
Plant height 
Height 1st pod 
quality ratig3l. 
stainrtig:
1t d1st 2nd 1st 
2nd 1st 2nd 1st 
2nd 1st
Variety, planting plant ing 
lanting plant ing planting lanting 
lanting lanting lpamtn lnigpatn
Inches Inches Inches Inches 
ra
f seed
shed.
2nd
planting
Dare
Hood
MENair 600
Davis
Lee 68
Pickett 71
McNair 800
Bragg
Semmnes
Ransom
Coker 208
P--63- 4000
Coker 318
Hampton 266A
1.3
2.3
1.0
1.3
2.0
2.3
1.8
1.3
1.5
1.3
1.0
2.0
1.8
1.8
1.8
1.8
1.8
1.8
1.8
3.5
1.3
2.3
1.5
1.0
1.0
2.3
2.5
2.5
32
31
34
33
33
32
35
40
36
31
31
39
47
41
23
24
26
26
22
23
23
128
27
24
23
26
33
29
4.5
4.3
3.8
34,8
4.8
3.8
6.8
5.3
5.3
5.5
5.0
11.5
8.8
4.3
3.0
2.5
3.0
3.0
3.5
2.8
3.0
3.3
3.3
4.5
4.3
6.3
3.3
2
1
I
1
I
1
1
1
1
1
1
I
1
1
1
1.
1
1
s 2237
170 221
281
186 250
fm be245
272
186 250
293
195 231
ova"*227
ego .- 272
-- 245
w313
186 293
/Planting dates were ay 
18 and June 22 for 1st and 
2nd
2/ Lodging ratings were 
recorded on a scale from 
Il to 5 ac
plantings,
:cording to
down badly.
3/ Seed quality ratings 
were on a scale from 1 to 
5 according to I
,/ Purple stain ratings were 
on a scale from 1 to 5 according 
to 1=
respectively.
I= almost all plants errect and 5 = all plants
very good and 5 = very 
poor,
no purple stainxtig and 5 = over 20% 
purple
0
staining,
- -_.__-_ - --- -.- I-_-.-_-._-.-.- 1 L_ __ ]. I1__AL._-1 
-.. "-I1 -1 -U -__ - tJ_. .1.
Table 6. Yield,
Pod of
19712
Maturity Date, Lodging, Shattering, Plant Height, and Height of 1st
soybean Varieties Grown on Gulf Coast Substation, Planted June 9,.
Yield
Maturity Lodging Plant Height 1-r. 2-yr. 3-yr. 4-yr.
Variety date ratig4 height 1st pod 1971 7071 69.71 70-71
Inches inch" Bu.IA. Bu./A. Bu.A. Bu../A.
Dare Sept, 25 1 30 4.4 44.3 cd 38.3 36.7 36.4
Hood Oct. 5 1 32 4.3 44.1 cd 38.7 .38.1 37.6
Davis Oct. 12 1 38 7.8 47.7 bc 44.6 40.8 38.9
Lee 68 Oct. 12 1 31 5.8 46.7 bc 46.2 42.6 40.4
McNair 600 Oct. 15 1 34 6.0 48.5 bc 47.1
Pickett 71 Oct. 15 1 31 6.0 44.8 cd 44.4
cNair 800 Oct. 15 1 35 6.5 50.4 ab 43.5 41.6
Sernmes Oct. 10 1. 32 4. 3 44. d 4. 85 3.
Coker 208 Oct. 18 1 31 6.0 44.7 cd 42.8 39.8 38.4
Bragg Oct. 20 1. 38 6.5 49.9 ab 48.2 45.1 42.2
Ransom Oct. 26 1 24 4.0 
53.5 a _~ .w rw
Hampton 266A Oct. 20 1 47 9.3 46.2 bc 42.3 39.1 38.0
F63-4000 Oct. 20 1 33 5.8 50.1 ab 44.6 _.- . ;
Coker 318 Oct. 26 1 47 9.8 40.8 d 35.7 34.6 33.6
1/ Yields adjusted to 13% moisture and 60 pounds per bushel.
2/ Lodging ratings were on a scale of 1 to 5 according to 1 almost all plants
erect and 5= all plants down badly.
3/ Yields followed by the same letter are not significantly different at .05
probability level. Coefficient of varieties was 6.6%.
10
Table 7. Maturity Date and Yield of Soybean Varieties Tested at the Prattville Field, 17
Soybean yield by average planting dat
3/ -2/ May11June 1
Maturity date- 
1-yr.- 2-yr. 3-yr. 
4-yr. 1- 2/-y
Variety 1st planting 2nd planting 1971 1970-71 1969-71 1968-71 19
Bu./A. Bu/A. Bu./A. Bu./A. Bu./AA.Bu./A.
Dare Oct. 1 Oct. 12 41.3' ef 42.8 40.5 39.9 33.9 f
York Oct. 10 . ----- 33.9 h 33.6 33.6 34.8
Hood Oct. 11 Oct. 15 37.0 g 38.7 37.6 38.5 35.2 e
McNair 600 Oct. 16- Oct. 19 47.8 abcd .43.2 41.2 b
Davis Oct. 17 Oct. 18 44.5 cde 44.4 42.4 . 41.1 39.7 cd
Lee 68 Oct. 17 Oct. 21 47.3 abcd 42.9 39.7 38.0 39.8 c
Pickett 71 Oct. 17 Oct. 23 46.5 bcd 44.7 ---- ---- 37.0 de
McNair 800 Oct. 19 Oct. 25 43.3 def 39.2 35.3 ---- 38.4 c
Bragg Oct. 19 Oct. 25 48.3 abc 43.0 39.5 37.1 41.0 bc3.
Semmes --..--- Oct. 25----- ----- 
41.1 bc3.
Ransom Oct. 23 Oct. 25 50.1 ab -- 
-- - 45.3 a
Coker 208 Oct. 29 Oct. 30 41.2 ef 
35.8 36.2 33.0 39.4 cd3.
F63-4000 Oct. 25 Oct. 27 51.3 a 
45.7 ----- 43.6 ab 9.
Coker 318 Oct. 30 Nov. 5 39.0 fg 
33.8 31.8 29.5 37.7 cde3.
Hampton 266A Oct. 29 Oct. 30 44.1 cde 26.3 36.5 
34.2 40.4 bcd3.
1 Yield adjusted to 13% moisture 
and 60 pounds per bushel.
ylevel
ates in 1971.
Yields fo11owed by the same letter are not significantly different at .05 probabilit'
Coefficient of variation was 6.5% and 5.5%, respectively, for 
1st and 2nd planting dc
1
Panting dates 'were May 7 and June 
14 for 1s t and 2nd plantings,9 respectively, 
1971.
able 8. Lodging, Plant Height, Height of First Pod, Seed 
Quality, and Seed Size of Variet
Fie~1l-19711/
at Prattville
2/ 
Seed
"'u 
/Lodging 
rating Plant height Height lst 
pod-qulity rating stairaigpe 
bu
1st 2nd 1st 2nd 1st 
2nd 1st 2nd 1st2n
Variety lni lni lni antin lantin 
lantin lantin lantin lantin 
lanin lati
seed
hel
2nd
lanting-
York
Hood
McNair 600
Davis
Lee 68
Pickett 71
McNair 800
Bragg
Seines
Ransom
Coker 208
P6 3.4000
Coker 318
,,ym tors 266A
1
1
1.3
1
I
I
1
2
1
1
1
1.3
1
1.6
2.9
2.5
2.5
4.1
4.5
2.3
3.0
2.0
1.1
2.4
1.6
2.5
3.1
--Planting dates were Nay and
~'Lodging ratingswee ecr 
d
incne
29
27
29
33
36
33
30
36
40
32
28
40
48
42
1June
Ion a
Ii acnes
26
27
29
31
29
25
27
32
32
29
25
32
36
35
14 f .or 1s a
scale from 1
Inches
3.0
2.0
3.0
2.8
3.5
3.5
3.0
3.8
5.5
4.3
3.3
4.8
7.5
4.0
Inches
2.3
2.0
2.0
2.0
1.8
1.5
2.8
2.5
3.0
3.3
2.3
3.5
3.5
2.8
,rS
1
2
1
1
2
2
5
3
2
2
2
2
2
I
End 2n plantingsrespectively.
2
4
2
1
2
1
1
1
2
1.
1
2
1
2
1.
1
1
1
1
1
1
2
I
2
2
Thous. Thous.
208 216
135
190 200
206 233
161 205
199 218
229 206
223 231
180 192
1
2
1
1
1
2
1
2
1
1
1
2
1
188
203
197
184
205
186
to 5 according to: lalmost all plants erect 
and 5 all plants
31 
down badly..
,Seed quality ratings were on a scale from 1 to 
5 according to: lvery good and S=verypor
M~tPurple, stain ratings were on a scale 
from 1 to 5according to ln'upesann 
n oe 0 purple staining.
---.---.--------
165
172
156
199
184
Table 9. Yield of Soybean Varieties Tested at theSadMutiSbsaio!
Variety
Dare
D68-128
York
Hood
D64-4636
McNair 600
Lee 68
Pickett 71
Davis
McNair 800
Bragg
Ransom
Coker 208
F63-4000
Hampton 266A
Coker 318
19 71
Bu. /A.
48.9. cdef
55.8 ab
45.0 f
44.4 f
48.2 def
51.8 bcd
52.5 bcd
54.0 abc
51.1 bcde
46.4 ef
52.6 bcd
58.4 a
48.8 cdef
51.6 bcd
May 2
2-yr. 3-yr. 4-yr.
1970-71 1969-71 1968-71
Bu./A. Bu./A. Bu./A.
50.6 46.7 44.6
47.1
46.8
50.4
49.8
50.8
49.6
45.0
49.5
43.9
51.4
13% moisture
43.5
44.4
44.4
45.5
42.1
44.0
41.8
42.4
43.7
43.7
44.4
43.8
42.6
Soybean yield by average planting
... __..
and 60 pounds per bushel.
May 27
date
2-yr. 3-yr. 4-yr.
1970-71 1969-71 1968-71
Bu./A Bu./A. Bu./A.
37.8 35.3 3299
1-yr.
19711'
Bu./A.
37.4 c
42.0 b
41.8 b
43.8 ab
41.8 b
41.4 bc
44.2 ab
43.9 ab
45.7 ab
46.8 a
43.6 ab
42.7 ab
42.9 ab
43.4 ab
38.3
37.4
37.0
38.7
41.0
39.5
42.2
39.8
42.6
38.8
39.6
41.0
40.3
43,3
39.2
41.0
38.8
37.3
June 18
1--yr
2
,2-yr. 3-yr. 4-yr.
1971-1 1970-71 1.969-71 1968-71
Bu. /A. Bu./A. Bu./A.
40.0 ab 38.0 31.4
39,4
36.5
35.7
38.3
37.2
40.1
38.1
a 39.6 '33.3
abc 34.9 29.7
41.0
37.6
36.4
32.5
32.2
34.4
40,o2
32.0
39.1
32.6
40.4
37.3
37.9
33.1
34.0
34.5
37.7
33.6
33.6
37.5
34.5
37. abc 33.1
28.0
29.5
31.8
27.5
31.3
28.8
27.0
-Bti./A.
33.8
35.1.
32.2
30.9
32.3
30.8
32.9
31.4
28.3
C")
1-4
/ields adjusted to
I/Yields followed by
variation "-Ts 
6.5,
the same letter are not significantly different at :05 probability level. Coefficient of
6.7, and 7.5%, respectively, for 1st, 2nd, and 3rd planting dates in 1971.
A ~I~ A 1 ~ ~C blrA1IRrrr~n ~IFL VI~CII~ rr~L r~ll O C II rl CI~
. . r s .!'l u.. ... r v
. w _
... .. _._.." ,..r .r
37.7 38.0
36.1 35.5
b cd
d
d
cd
ab
d
ab
d
ab
ab c
Sand Mountafn Substations-/
Maturity Date, Lodging, Plant 
Height, and Height of First 
Pod of Soybean Varieties
When Grown on Sand Mountain 
Substation, 19711L
by Planting Dates
Maturity date Lodging 
ratingF Plant height 
Hih s
1st 2nd 3rd 
1st 2nd 3rd 
1st 2nd 3rd1t1n
Variety plantin plantingplnting 
pating planting planting 
planting planting planting 
pat
Dare
D68 128
York
Hood
D64-4636
McNair 600
Lee 68
Pickett 71
Davis
McNair 800
Bragg
Ransom
Coker 208
F6 3-4000
Hampton 266A
Coker 318
Se
Se
Se
Se
Oc
Oc
Oc
Oc
Oc,
Oc1
Oc
.pt.
21
27
28
28
Sept. 28
Sept. 28
Oct. 7
:t.1
t. 7 Oct. 9
Ot. 8 Oct. 8
:t. 14 Oct. 12
t. 15 Oct. 18
t11 Oct. 18
~t. 17 Oct. 17
ft. 17 Oct. 19
~t. 20 Oct. 21
~t. 18 Oct,. 21
ws Oct. 
22
oso. Oct. 25
Oct. 13
Oct, 13
Oct. 18
Oct. 16
Oct. 13
Oct. 18
Oct. 21
Oct. 18
Oct. 20
Oct. 18
Oct. 25
Oct. 22
Oct. 26
Oct. 28
2.0
2.0
1.3
3o3
1.0
2.8
2.8
3.0
2.5
3.5
3.8
2.3
1.5
3.8
2.5
2.3
3.0
an o
3.3
3.8
3.8
3.3
3.5
3.4
3.3
2.8
5.0
4.0
2.8
2.8
1.3
2.0
2.3
3.8
3.5
2.5
1.8
2.3
1.0
2.3
2.5
3.3
2.0
Inches
29,
28
24
32
25
33
28
30
38
34
44
32
26
38
Inches
35
Ilr 
r 
r
34
33
34
36
34
33
36
35
40
36
40
36
47
Inches
31
31
29
34
30
30
35
29
32
31
29
30
36
38
Inches
4.5
3.8
2.3
5.0
4.0
3.5
5.5
5.3
7.3
6.5
7.3
6.3
6.0
7.0
Inches
5.0
4.0
5.5
5.5
6.0
5.3
7.3
7.8
8.0
9.0
8.3
11.3
5.8
12.8
3rd
planting
./ Planting dates were May
2/ Lodging ratings 
were on
4,June 7, and July
Inches
4. 5
4.0
4.5
4.5
5.*5
5.5
4.8
4. 5
6.5
6.5
7.3
7.5
6.3
9.8
2 for 1st, 2nd, and 3rd plantings, respectively.
a scale from I to 5 according to 1 almost all plants erect and 5 = 
all plants down badly.
Table 10.
6600
Seed Quality and Seed Size of Soybean Varieties by Planting Dates When Grown on Sand Moun
Seed Quality and Seed Size of 
Soybean VarietieebT Planting 
Dates When Grown on Sand Mounai
Seed quality rating. Purple stain rating. Number of seed per buse
1.r.+ n 
rwn rr~ w riwrrw 
. r +.s t 
2nd 3rd 
1st 2nd 
3rd 1s t 
2nd 3rd
planting iplanting- planting planting. planting planting planting planting plct~
Thous. Tou. hos
Subs tation
Substation,
3Dare
D68-128
York
Hood
D64-4636
McNair 600
Lee 68
Pickett 71
Davis
McNair 800
Bragg
Ransom
Coker 208
F6 3-4000
Hampton 266A
2
1
I
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
1
I
1
1
I
1
1
1
1
1
2
2
2
1
2
I
1
2
1
2
2
1
1
1
I
1
1
2
2
2
1
3
1
3 .,4
Coke r 318 1 2
Th atn dtswr May 4, June 7, and July
I/Seed quality ratings were on a scale from 1
l'Purple stain ratings were on a scale from 1
-4
2 for 1st, 2nd, and
to 5 according to:
to 5 according to:
1161
3rd plantings, respectively.
1=very good and 5=very poor.
1=no purple staining and 5=over
145
20% purple staining.
Table 11.
Table 114
Variety
185
165
131
157
161
179
170
183
134
194
150
127
150
141,
172
136
156
186
192
209
149
181
158
146
155
142
154
167
143
155
189
184
186
162
203
162
149
163
145
153
-4
-- -
Table 12. Maturity Date and Yield of Soybean Varieties Tested at Upper Coastal Plain Substation, 1971
Soybean yield by average planting dates
Maturity dates
3 /  
May 14 June 24
1st 2nd 1-yr. 2-yr. 3-yr. 4-yr. 1-yr.- 2-yr. 3-yr. 4-yr.
Variety planting planting 1971 1970-71 
1969-71 1968-71 1971 1970-71 1969-71 1968-71
Bu./A. Bu./A. Bu./A. Bu./A. Bu./A. Bu./A. Bu./A. Bu./A.
Dare Oct. 1 Oct. 18 24.6 34.3 35.0 32.8 
38.8 bed 35.6 34.9 34.5
York Oct. 8 Oct. 18 17.3 20.7 24.8 28.2 34.1 d 30.9 
32.9 33.9
Hood Oct. 15 Oct. 18 24.5 23.3 26.7 32.9 41.5 abc 38.0 
37.8 39.1
McNair 600 Oct. 18 Oct. 27 30.3 25.9 
---- ---- 39.4 bcd 34.4
Davis Oct. 18 Oct. 25 26.0 25.9 30.0 34.2 44.7 ab 38.8 40.9 42.1
Lee 68 Oct. 15 Oct. 18 26.6 23.8 26.4 32.0 38.9 bcd 33.9 36.6 36.8
Pickett 71 Oct. 18 Oct. 25 24.3 25.8 ---- ---- 38.5 bcd 34.9
McNair 800 Oct. 18 Oct. 29 23.6 24.3 28.8 ---- 36.5 cd 33.6 35.9
Bragg Oct. 18 Oct. 27 26.8 27.5 28.9 33.8 39.2 bcd 33.4 36.1 39.0
Ransom Oct. 18 Oct. 31 28.9 ---- ---- 
---- 42.4 abc ----
Coker 208 
Oct. 25 Nov. 
2 23.5 24.8 
25.8 31.6 
42.9 ab 35.3 
39.4 40.6
F63-4000 Oct. 18 Oct. 31 28.9 27.7 ---- ---- 44.3 ab 34.8
Coker 318 Oct. 25 Nov. 1 18.2 17.6 16.7 23.0 38.4 bcd 37.4 34.4 
35.2
Hampton 266A Oct. 25 Nov. 4 25.9 24.3 26.7 32.4 45.7 a 37.9 40.5 42.2
!Yields adjusted to 13% moisture and 60 pounds per bushel.
/Yields followed by the same letter are not significantly different at .05 probability level.
Coefficient of variation was 27 and 9.3%, respectively, for 1st and 2nd planting dates in 1971
3/Planting dates were May 20 and July 1 for 1st and 2nd plantings, respectively, in 1971.
able 13. Lodging, Plant Height, Height 
of First Pod, Seed Quality, and Seed Size 
of Vari
Upper Coastal Plain Substation, 1971
Lo nyating-- Plant height.
1st 2nd 1st 2nd
Seed Purple Number of seed
Height 1s t pod quality rating-3' stain rating-' per bushel
1st 2nd 1st 2nd 1s t 2nd 1st 2nd
planting planting planting, planting planting planting planting ln planting planting plantin _lni
Inches Inches Inches Inches Thous. Thous.
dare
cork
lood
icNair 600
)avis
fee 68
?ickett 71
4cNair 800
3ragg
lansom
.oker 208
F6 3-4000
,oker 318
lampton 266A
1.0 1.5
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.5
1.0 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
10 1
'a riet
26
25
27
34
33
29
28
31
42
33
26
37
41
37
32
26
29
30
33
29
27
28
28
32
34
33
42
3.0
3.0
4.3
3.8
4.5
4.5
4.0
5.3
7.8
5.8
7.5
10.0
_6.0
3.3
2.3
3.3
3.5
3.5
4.0
2.8
3.3
4.0
4.5
6.0
3.5
7.8
5.
1
2
2
2
2
1
1
2
2
1
1
1
2
I
1
2
1
1
1
I
1
1
2
2
2
1
2
3
2
1
1
1
1
2
2
1
2
3
2
2
1
2
2
2
2
2
1
1
2
2
2
1
2
3
N~f
239
168
173
216
183
225
219
203
171
178
158
157
211
136
185
153
176
195
173
199
2 05
211
174
162
145
145
169
162
./Planting dates were Mtay 20 and July 1 for 1st and 2nd planting, respectively.
VLodging ratings were recorded on a scale from I to 5 according to: 1ealmost all plantserc nd5alpnt
VSeed quality ratings were on a scale from 1 to 5 according to: lvery good and 5veryp
IPurple stain ratings were on a scale from 1 to 5 according to: no purple staininga n 5
down
adly.
dining
ed
- rrr -464 46 .a. w %. j
o * w A&W -. F &M -f ., - - - - - --*-AL. a %.I JIL