A LB iA
SOYBEAN 
IARIETY
Donald L. Thurlow
April 1973
Department of 
Agronomy and Soils
Departmental Series 
No. 10
AGRICULTURAL 
EXPERIMENT 
STATION
AUBURN UNIVERSITY
RI. Dennis Rouse, 
Director Auburn, 
Alabama
F

INTRODUCTION
Before a soybean variety is considered for planting, it should be
evaluated at a number of locations, 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 photo-
periodic the blooming period, period of pod development and fill, and
maturity date of a particular variety does not vary greatly from year
to year. Therefore, it is important that varieties from more than one
maturity group 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 feet 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 1972 season moisture was good and adequate stands were
obtained at all plantings. Moisture was good during the early growth
periods at all locations for the early planting dates. Severe drought
conditions existed in 1972 during pod filling of mid to late season
varieties at most locations. The 1972 season was similar to 1968 and
1969 for this respect.
Table 1. Rainfall by location during the period August
September 25 for 1971 and 1972
15 through
Rainfall from August 15 to September 25
Location 1971 1972
Inches Inches
Black Belt Substation 8.47 1.45
(Marion Junction)
Brewton Field 8.17 1.56
(Brewton)
Gulf Coast Substation 13.99 4.68
(Fairhope)
Prattville Field 7.27 2.70
(Prattville)
Sand Mountain Substation 6.25 3.14
(Crossville)
Upper Coastal Plain Substation 5.53 3.62
(Winfield)
Table one indicates the big difference 
of rainfall for 1971 and
1972 at each location. The period of August 
15 through September 25
is the period of pod development and fill 
for mid to full season varie-
ties.
The very early varieties such as Dare 
were in the middle of pod
filling by August 15 however Bragg had just 
finished blooming nd! was
starting pod development.
Heavy rains caused delay in 
harvesting of some tests. The Sand
Mountain varieties x date of planting test 
was not harvested until
January 16, 1973. The early varieties 
for the first two planting dates
in this test were severely shattered.
DATA RECORDED
Yield of soybeans was determined by hand harvesting 
the 2 center
rows of each plot and threshing 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 
were dry and most
of the leaves had dropped. Under most conditions, the 
stems were 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.
Shattering notes were taken on the border rows 14 days after matur-
ity. The estimates were based on a scale of 1 to 5 as 
follows:
1 - no shattering.
2 - I 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 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
of 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 considered were development of seed,
wrinkling damage, and brightness. Much of the poor quality reported
was due to late harvesting and to excessive rain.
Purple stain ratings were given to seed samples on a scale .f 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 - over 20% purple staining.
VARIETY DATA
The entries included in these tests were varieties released prior
to 1972 and a number of unreleased strains in the late stages of develop-
ment from the USDA Regional Testing Program. These strains were all
yielding above standard varieties in their maturity group and all have
good nematode resistance.
The following is a suggested list of varieties by planting dates
for Northern, Central and Southern Alabama. Varieties are listed in
order of maturity.
Northern Alabama
Plantings May 1 to 31
Dare, Forrest, Hood, McNair 600, Lee 68 Davis
Plantings June 1 to 30
Dare, Forrest, Hood, Lee 68, Davis, McNair 800,
Bragg, Ransom
Central Alabama
Plantings April 20 to May 15
Dare, Hood, McNair 600, Lee 68, Davis
Plantings May 16 to June 5
McNair 600, Lee 68, Davis, McNair 800, Ransom,
Hampton 266A, Hutton, Bragg
Plantings June 6 to 30
Davis, Bragg, Ransom, Hampton 266A, Hutton
Southern Alabama
Plantings May 15 to June 1
Lee 68, Hood, Davis, McNair 600, Bragg, Ransom,
McNair 800
Plantings June 2 to 30
Davis, Bragg, Ransom, McNair 800, Hampton 266A
Hutton
Soybean varieties grown in Alabama fall in Maturity Groups 
V, VI,
VII, and VIII. The following is a list of the varieties and strains,
with source of seed, tested over the past 5 years by maturity groups.
For mcre information on these varieties, see Table 2. For information
of. other varieties see Bulletin 
43.1'
?ar Earl y Varetie's M'turit y Crou~p V
Dare
Forrest (D68-1l28)
Alabam aFoundation Seed Stock Farm, Thorsby, Ala.
USDA Delta Branch Experiment Station, Stonevilie,
Miss.
Earl Varieties Maturity Group VI
Davis
Hood
Lee 68
McNair 600
Pickett 71
D6 7-460l*
D64-4636*
FFR 666*
Coker 69-~87A*
Alabama Foundation Seed Stock Farm, Thornby, Ala.
Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Alabama Foundation Seed Stock Farm, Thorsby, Ala.
McNair Seed Co., Laurinburg, N. C.
USDA Delta Branch Experiment Station, Stoneville,
Miss.
USDA Delta Branch Experiment Station, Stoneville,
Miss.
USDA Delta Branch Experiment Station, Stoneville,
Miss.
Farmers Forage Research Corporation, W. Lafayette,
Ind.
Coker Pedigreed Seed Co., Hartsville, S. C.
Mid-season Varieties - Maturity Group VII
Bragg.
Coker 68-038*
Coker 68-4l*
McNair 800
Ransom
Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Coker Pedigreed Seed Co., Hartsville, S. C.
Coker Pedigreed Seed Co., Hartsville, S. C.
McNair Seed Co., Laurinburg, N.C.
Alabama Foundation Seed Stock Farm, Thorsby, Ala.
Late Varieties - Maturity Group VIII
Hutton (F63-4000)
F66-1166*
Coker Pedigreed Seed Co., Hartsville, S.C.
USDA Delta Branch Experiment Station, Stoneville,
Miss.
USDA Delta Branch Experiment Station, Stoneville,
Miss.
*Lines not released
ACKNOWLEDGEMENT
The author wishes to express appreciation to Superintendents J. K.
Boseck, Emmett Carden, F. T. Glaze, S. E. Gissendanner, Robert Moore,
Aubrey Smith and Harold Yates for growing and harvesting of variety tests.
11
Soybean Production--Recent Research Findings, Auburn University Agricul-
tural Experiment Station, Bulletin 413.
Table 2. 1 turity aad Other Characteristics of Soybean Varieties Tested
Reaction to irdividua1 diseases!
Plarxt characteristics 
Tar-- Phyto- PurpleRssane 
Rgs
Pubes- Flower Pod Hila Bacteria Wild- 
get phthora seed ot
Group Vaxietvy cence color color color pustule fire of ot 
stair yt ko n
tration
o .
Yea LL
V Dare
Fo r es
VI -Hood
Davis
Lee 68
Pickett 74
McNair 600
D64-4636
VII -Bragg
McNair 800
Ransom
VIII Hampton
266A
Hutton
F66-1166
Grey White Tan Buff R
Tawny White Tan Black 
R
Grey
Grey
Tawny
Grey
T awny
Grey
Tawny
Grey
Tawny
Grey
Browjn
Tawny
Purple
White
Purple
Purple
Purple
+rnite
White
White
Purple
Purple
Purple
Lt. Tan
Lt. Tan
Lt. Tan
Tan
Lt. Tan
Tan
Buff
Buff
Black
Black
Black
Buff
Tan Black
Tan Buff
Tan Black
Lt. Tan
Tan
Brown
Buff
Black
Black
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
1
ThesE are relative order
VS-very susceptilile.
of resistance: VR-Very resistant; R-resistant; MR-moderately resistant;S-susceptible;
21
Registration of v,at- re inAr 
Journal from 1958--1963 and Crop Science 
1964
R
1'R
MR
R
R
R
R
SR
S
R
R
R
R
R
R
MR
R
R
R
R
R
MR
R
R
R
R
S
S
S
R
S
S
S
S
S
MR
M'R
S
R
VR
R
S
S
R
S
MS
VS
S
S
MR
R
S
S
S
S.
R
R
F.
S
S
50
30
56
72
87
43
95
47
1966
1960
1966
1968
1971
1964
1973
1964S
R
R
rrL~~U -IC L V V V r O~ ~ V I UI 19~LC Ir Lr 1411 DI~~L-IC
Table 3. Yidld of So ybE-an Varieties Tested at the Black Belt Substation!!
_ Soy ean Yield by 5 yr. Average PlantingDate
May 14 June 5
1yr.KV2 yr. 3 yr. 4 yr. 5 yr. 1 yr.
2
/ 2 yr. 3 yr. 4 yr. 5 yr.
Variety 72 71-72 70-72 69-72 68-72 72 7l-72 70-72 69-72 68-72
Bu/A u/A Bu/A Bu/A u/A E/A u/A Bu/ABu/AEu/AuEu/Au/u/AuEu/A
Lee 68 40.7 ab 37.3 35.8 33.9 33.6 38.0 a 34.5 30.3 29.5 28.2 2
Dare 36.9 bc 37.5 35.6 33.4 32.7 32.7 a 33.3 31.2 30.4 28.4 2
Davis 41.9 ab 37.8 34.7 32.6 32.4 38.0 a 36.8 32.7. 
30.3 29.2 3
Hood 41.6 ab 38.4 34.7 32.4 31.7 38.2 a 33.1 30.8 29.2 .25.6 2
Bragg 42.0 ab 37.0 32.9 31.1 31.0 38.3 a 36.4 30.9 30.6 28.1 3
Hampton 266A 28.9 d 23.5 21.6 23.4 23.8 
41.5 a 30.8 26.6 26.1 25.6 3
McNair 800 41.8 ab 36.7 32.4 31.5 - 36.0 
a 33.4 28.7 28.2 3
McNair 600 44.3 ab 41.1 37.1 - - 37.8 a 36.6 32.1 
- - 2
Hutton 41.7 ab 38.2 32.8 - 37.9 a 35.1 29.1 - - 28. b 522.
Ransom 42.7 ab 41.9 - - 42.9 a 40.5 - - - 32. b 3.
Forrest 45.9 a - - - 38.1 a -
- - - 24.
Coker 69-87A 43.1 ab - - - - 40.4 a - - - 29. b
D64-4636 40.5 ab - - - - 40.2 a - - - - 29. 
b
Coker 68-41 29.4 cd - - - - 42.9 a - - - - 29. b
C.V.% -13.3 11.1 15.
!/13 Yields adjusted to 
13% moisture and 60 
pounds per bushel.
2/Yields f ollowed by the same letter are not significantly different at . 05 probabilitylel. Patndts
were May 11, M~ay 31, and June 23 for 1st, 2nd, and 3rd planting 
dates in 1972.
+yr. 5 yr
_9-72 68-7
3u/A Bu/A
.9.7 17.8
We 9 16.9
35.3
L3 9.7 
16.6
Z4.6 20.6
20.4 18.4
23.0
+ r
Table 4. Maturity Date, Lodging, Plant Height, and Height of First 
Pod of Soybean Varie
VBen Grown or. Black Belt Substation, 1972
Maturity datedV Lodgingratin 
Plant heightH1
P antin Panting Planting Plantin
Variety l1;t 2nd 3rd 1 
2nd 3rd 1st 2nd 3rd 1st 2nd 3rd
In. In. In.
Dare Sept. 17 Sept. 22 Oct. 6 3.1- 2.2 1.7 35 38 29
Forrest Sept. 23 Sett. 24 Oct. 9 2.0 2.0 2.4 33 41 27
Hood Sept. 24 Sept, 29 Oct. 9 2.4 2.4 2.1 36 37 26
D64--4536 Sept. 26 Oct. 1 Oct. 9 1.9 2.1 2.6 34 34 26
Coker 69-87A Sept. 27 Oct. 2 Oct. 10 2.4 2.1 1.9 37 40 29
Davis Oct. 1 Oct. 5 Oct. 16 2.1 2.2 2.6 43 41 28
McNair 600 Oct. 9 Oct. 12 Oct. 17 2.1 2.7 2.7 37 40 30
Lee 68 Oct. 10 Oct. 11 Oct. 17 3.2 2.1 3.0 34 37 27
Ransom Oct. 13 Oct. 20 Oct. 21 1.9 2.7 2.0 41 42 30
Hampton 266A_ Oct. 16 Oct. 23 Nov. 9 4.1 2.4 3.0 43 46 33
Bragg Oct. 17 Oct. 15 Oct. 21 3.1 3.2 3.4 42 43 33
McNair 800 Oct. 17 Oct. 14 Oct. 19 3.0 2.9 2.7 43. 33 265.40 37
Coker 63-41 Oct. 25 Oct. 23 Oct. 30 4.1 2.7 3.0 43 47 315.57 C
Hutton Oct. 29 Oct. 31 Oct. 23 3.2 3.2 2.9 42 40 2947 45 4.
-Planting dates were May 11, May 31, and June 23 for 1st, 2nd, and 3rd plantings, respctiey
l-'aturity was taken as the date when the pods were dry and most of the leaves had droppe. Udrms coit
the stems were also dry.
l'Lodging ratings were recorded on a scale of 1 to 5 according to:
1. almost all plants erect
5. all plants down
ons
Table 5. Maturity Date, Lodging, Plant Height and Height of First
When Grown on Black Belt Substation, 71-72 Average
Pod of Soybean Varieties by Planting 
Dates
Mturity date
2
/ Lodging rating/ Plant height 
Height 1st pod
Plantingl/ Planting 
Planting Planting
Variety 1st 2nd 3rd 1st 2nd 3rd Ist 2nd 
3rd 1st 2nd 3rd
in. in. in. in. in. in.
Dare Sept. 22 Sept. 26 Oct. 10 2.3 2.3 1.8 35 33 27 4.9 4.5 
4.3
Hood Sept. 27 Oct. 1 Oct. 10 2.5 2.3 1.8 34 31 
24 4.1 4.9 3.4
Davis Oct. 3 Oct. 9 Oct. 16 2.3 2.3 2.1 41 38 25 
3.4 4.1 3.4
McNair 600 Oct. 7 Oct. 10 Oct. 15 1.8 2.3 2.0 37 37 27 
4.0 5.2 3.4
Lee 68 Oct. 9 Oct. 11 Oct. 16 2.9 2.4 2.7 33 32 24 4.4 5.1 
3.5
McNair 800 Oct. 15 Oct. 13 Oct. 19 2.5 2.2 1.9 41 30 22 6.0 4.7 2.8
Bragg Oct. 16 Oct. 17 Oct. 21 2.8 2.8 2.4 42 39 29 6.4 5.6 4.5
Ransom Oct. 16 Oct. 21 Oct. 22 1.8 2.0 1.6 
38 36 26 6.5 5.5 4.3
Hutton Oct. 24 Oct. 25 Oct. 23 3.5 2.9 2.1 41 
35 26 5.4 5.4 4.1
Hampton 266A Oct. 28 Oct. 31 Nov. 9 3.2 2.1 
2.4 42 42 30 8.3 6.7 4.6
1
Average planting dates were May 15, June 4, and June 26 
for 1st, 2nd, and 3rd plantings, respectively.
2
i/Maturity was taken as the date when the pods were dry and most of the leaves 
had dropped. Under most
conditions the stems were also dry.
3/Lodging ratings were recorded on a scale of 1 to 5 according to:
1. almost all plants erect
2. all plants down
ia
~1
Table 6. S":e
1972
Q7iality and Size for Soybean Varieties by Planting Dates When Grown on Black Belt Substatin
_______- Seed quality ratit - Purple stain ratintNumb
Planting/! PlantiPti
Variety: l It 2nd 3rd 1st 2nd 3r: 1st
Thous. hu. Tos
Dare 2 2 1.5 1 1.5 3 250
Forrest 4 4 4 1 1 3 233
D68-4635 3 2.5 1.5 1 1 2 219
Coker 69-87A 3 2.5 2 3 4 2 211
Hood 3 2 1.5 1 2 2.5 192
Lee 68 2 3 3 2 1 1 2182724
Davis 1.5 1.5 1.5 1.5 2 1 2162524
McNairG600 3 3 2 3 4 2 2192622
Bragg. 2 4 2 3 2 1 1962325
Ransom 2 4 2 2.5 2 1 2151923
Mc.Nair 800 .2 1.5 2 1 2 2 2592728
Coker 68-41 3 2 2 3 2 3 1881828
Hampton 266A 4 3 2.5 5 4 3 1832025
Hutton 2 3 2 2 1 1 1691823
1/Planting dates were May 11, May 31, and June 23 for 1st, 2nd, and
2
/Seed quality ratings were on a scale from I to 5 according to 1 =
I/Purple stain ratings were on a scale from 1 to 5 according to 1 =
purple staining.
3rd plantings,. respectively..
very good and 5 = very poor.
no purple staining and 5 = over 20%
2
I
Table 7. Yield of Soybean Varieties Tested at the Brewton Experiment Field, 19721/
Soybeanaayield bg 5 r. ave d
May 28_June
1yr. IF 2 yr. 3 yr. 41 y ir._J2yr. 3yr5
72 -ty - 71-___ 71-72 70-72 69-72 72 
71-72 70-
Bu/A Bu/A Bu/A Bu/A u/AAuA
Davis 16.9 a 29.8 35.4 37.2 12.4 abc 20.1 25.3
Dare 17.3 a 28.8 33.2 33.4 13.0 ab 19.2 20.
Hampton 266A 9.5 de 25.1 28.7 32.4 13.5 a 17.8 26.
Bragg 11.5 cd 21.4 26.9 30.0 9.8 cdef 15.4 21.
Lee 68 11.9 c 24.0 27.6 28.5 8.9 def 17.4 19.
Ransom 10.3 cd 28.9 - - 10.2 bcde 19.1 -
McNair 600 14.3 b 27.5 - - 11.6 abcd 20.3 26.
Hutton 8.0 e 27.4 - - 7.7 ef 15.2 21.6
McNair 800 11.1 cd 27.0 - - 9.9 cde 17.8 24.52.
D64-4636 18.5 a - - - 11.3 abcd! - ---
Forrest 13.4 a - - - 12.7 abc - -
Coker 69-87A 17.8 a- - - 13.3 a - - -
Coker 63-38' 10.8 ed - - 13.7 a ---
Coker 63-41 10.3 cd - - - 13.5 a - --
F66-1166 4.0 f - - - 6.9 f - -
C.V.% 11.8 16.6
/Yield1 adjusted to 13%~ moisture and 60 Pounds per bushel.
2
/Yields followed by the same letter are not significantly different 
at .05 probability lvl
dates were June 2 and June 30 for 1st and 2nd plantings in 1972, respectively.
Planting
E
I
Table 8. Maturity Date, Lodging, Plant 
Height, and Height of
Date When Grown on Brewton Experiment Field, 
1972 .
First Pod of Soybean Varieties 
by Planting
Maturity date Lodging 
ratin Plant he ht 
He
PiantijT PlantingPlantinggPlanting
Variety 1st 
2nd 1st 2nd 
lst
In. n.I
Dare Sept. 16 Sept. 27 1 
1 23 17 3.
Forrest Sept. 18 Oct. 1 1 
1 21 17 3.
Coker 69-87A Sept. 18 Oct. 9 1 
1 24 15 5.
D64-4636 Sept. 20 Oct. 3 1 1 
22 16 3.
Davis Sept. 25 Oct. 5 1 1 27 
18 4.
Lee -68 Sept. 27 Oct. 
8 1 1 19 
14 30
McNair 600 Sept. 28 Oct. 5 1 
1 24 14 2.8 .
Ransom Oct. 3 Oct. 12 1 
1 25 17 5.0 .
McNair 800 Oct. 5 Oct. 12 1 
1 22 12 551.
Bragg Oct. 5 Oct. 20 1 1 
31 21 6.0 .
Coker 68--41 Oct. 9 Oct . 2-5 1.3 1 
32 19 7.5 .
Hutton Oct. 9 Oct. 25 1 
1 31 22 7.5 .
Coker 68-38 Oct. 9 Oct. 27 1 1 
30 18 7.3 .
Hampton 266A Oct. 9 -Oct. 27 1 1 
34 20 8.3 .
F66-1166 Oct. 15 Oct. 30 1 1 
35 22 7.5 .
kMaturity was taken as the date when the pods 
were dry and most.of
conditions the-stems were also dry.
lPlanting dates were June 2 and June 30 for 1st 
and 2nd plantings,
'odging ratings vere recorded on a scale from 1 to 5 according 
to
all plants -down.
the leaves had dropped. Under most
respectively.
I1 almost all plants, erect and 5 =
Table 9. Maturity Date, Lodging, Plant Height, and Height
on Brewton~ Experiment Field, 71-72 Average
of First Pod by Planting. Dates When Crown
Matu4 9 ate Lodging ratng Plant height Heihto
PlantinT Planting Planting Planting
Variety 1st 2nd 1st 2nd 1st 2nd 1st2n
n. In. In. In.
Dare
Davis
Lee 68
McNair 600
McNair 300
Bragg
Ransom
Hutton
Hampton 266A
Sept. 17
Sept. 27
Oct. 1
Oct. 1
Oct. 5
Oct. 7
Oct. 8
Oct. 11
Oct. 16
Sept. 27
Oct. 4
Oct. 7
Oct. 4
Oct. 3
Oct. 14
Oct. 10
Oct. 18
Oct. 25
1.2
1.2
1.5
1.0
1.4
1.2
1.2
1.5
1.4
1.4
1.4
1.4
1.4
1.2
1.7
1.0
1.7
1.8
28
30
26
29
29
36
28
35
38
20
22
18
20
18
25
21
24
25
3.9
4.4
3.9
3.3
5.3
6.4
5.2
6.3
8.6
A/Maturity was taken as the date when the pods were dry and most of the leaves had dropped
most conditions the stems were also dry.
2
lPlantin3 dates were May 25 and June 21 for 1st and 2nd plantings, respectively.
21
Lodging ratings were recorded on a scale from 1 to 5 according to 1= almost all p-lants
5 = all plants down.
3.3
2.9
2.4
2.2
2.3
3.4
3.4
4.4
4.1
Under
rect and
C , r,~ 37 . ~Re 1 3 1 3n
Table 10. Seed Quality and Size for Soybean Varieties by Planting Dates
ment Field, 1972
When Grown on Brewton Experi-
Seed quality ratting
Variety 1st .2nd
Purple stain rating
3
1
1st 2nd
Number of Seed per Bushel
Planting
1st
Thous .
2nd
Thous.
Dare
Forrest
D64-4636
Coker 69-87A
Davis
Lee 63
McNair 600
Bragg
Ransom
McNair 800
Coker 68-38
Coker 68-41
Hampton 266A
Hutton
F66-1166
-"Seed quality ratings were on a scale from 1 to
?/Planting dates wE.re June 2 and June 30 for 1st
APurple stain ratings werc on a scale from 1 to
20% purple staining.
5 according to 1 = very good and 5 = very poor
and 2nd planting, respectively.
5 according to 1 = no purple staining and 5 over
2
3
2
2
2.5
1.5
2
1.5
2
I
1
2.5
2.5
2
5
2
2.5
1.5
2
2
5
2
3
5
1.5
3
2.5
2.5
3
2
1
1
1
1
1
1
1
1
1
2
1
1
1
313
324
320
269
262
296
291
306
309
328
231
283
283
283
281
29 6
324
302
276
302
264
281
264
2 59
278
243
264
225
227
278
.. .. *... .. .. ... .- _--- V-- - -, .. .... .. _.r.
.. .. ..
r -._.,.__..-..r
I.U1J I ~ I t
Table 11. Yield, Maturity Date, Lodging, 
Plant Height, and Height of First 
Pod of Soybe
at Gulf Coast Substation
Yield 
MatuLodin
l yi. 2 yr. 3 yr. 
4 yr. 5 yr. Date
3  
tns egt 1tP
Variety 72. 
71-72 70-72 
69-72 68-72 
1972 
1972
Bu/A Bu/A Eu/A Bu/A 
Bu/A
Bragg 31.4 b 40.7 
42.2 41.7 40.0 Sept. 30 
2.0
Lee 68 38.5 a 42.6 43.2 
41.6 40.0 Sept. 25 1.0
Davis 39.3 a 43.5 
42.4 40.4 39.0 Sept. 25 
1.2
Hood 39.4 a 41.8 38.5 
38.4 38.0 Sept. 25 1.2
Dare 42.8 a 43.6 39.4 
38.2 37.7 Sept. 20 1.0
Hampton 266A 26.8 c 36.5 36.8 
36.0 35.8 Oct. 5 2.0
McNair 800 33.2 b 41.8 
40.1 39.5 
Sept. 30 1.0
McNair 600 40.3 a 44.4 44.4 
- - Sept. 25 1.7
Hutton 27.4 c 38.8 
38.5 Oct. 10 
1.7
Ransom 31.9 b 42.7 
Sept. 30 1.0
FFR 666 40.3 a 
Sept. 25 1.0
Coker 69-87A 39.2 a -
- - - Sept. 
25 1.5 3 
.
Coker 68-38 32.0 b -
- - -
Oct. 5 1.7 3 ~
Coker 68-41 25.7 c - -
- - Oct. 5 1.7 
3 .
C.V. 9.2.
"Yildsadjusted to 13% moisture and 60 pounds 
per bushel. Planting date. was June 2 in192adJn5fo
for 5 year average.
2
/Yields followed by the same letter are not significantly 
different at .05 probability lvl
/'Maturity a taken as the date when the pods were dry and 
most of the leaves had droppe. Udrms
wsyconditions the 
stems 
were 
also dry.
4
Lodgi.ng ratings were on a scale of 1 to 5 according to I1 almost 
all plants erect and 5=alpat on
ir
i
s,
Ir(
Ct
D
e(
Maturity Date, Lodging Ratings, Plant Height, and Height 
of
When Grown on Gulf Coast Substation, 
1971-72 Average
First Pod of Soybean Varieties
Maturity daturity date Lodging 
rating2 Plant height 
Height st Pod
Variety 71-72 71-72 
71-72 71-72
In. In.
Dare Sept. 23 1.0 
29 4.3
Hood Sept. 30 1.1 
32 4.4
Davis Oct. 4 1.1 
37 6.7
Lee 68 Oct. 4 1.0 
28 5.3
McNair 600 Oct. 5 1.4 
34 5.5
McNair 800 Oct. 8 1.0 
35 6.1
Bragg Oct. 10 
1.5 36 
5.9
Ransom Oct. 13 
1.0 31 
5.3
Hampton 266A Oct. 13 
1.5 42 
7.5
Hutton Oct. 15 
1.4 35 
5.9
l/Maturity was taken as the date when the pods were dry and 
most of the leaves had dropped. Under most con-
ditions the stems were also 
dry.
2/Lodging ratings were recorded on a scale 
of 1 to 5 according to: 1 = almost all plants 
erect and 5 =
all 
plants 
down.
Table 12.
I
Table 13. Yield of Soybean Varieties Tested at the Prattville Experiment Field
Soybean yield by5 yr. averageplantingdates.
May 10 June 1
1lyr.2/ 2 yr. 3 yr. 4 yr. 5 yr. lyr.
2  
2
Variety 72 - 71-72 70-72 69-72 68-70 72 717
Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu /
Davis 28.1 b 36.3 38.6 38.8 38.5 18.2 cdef 29
Dare 32.2 ab 36.8 38.9 38.4 38.4 13.2 g 23
Hood 32.9 ab 35.0 36.4 36.4 37.4 16.7 f 26
Lee 68 20.7 efg 34.0 35.1 35.0 34.5 17.0 bcde 28
Bragg 11.2 g 29.8 32.1 32.4 31.9 23.4 ab 32
Hampton 266A 15.4 gh 29.8 22.4 31.2 30.4 22.3 ab 31
McNair 800 17.1 fg 30.2 31.5 30.8 21.2 abc 29
Hutton 15.4 gh 33.4 35.2 23.8 a 33
Pickett 71 21.1 ef 33.8 36.5 18.0 cdef 27
McNair 600 22.9 cde 35.4 36.1 - - 20.7 abcd 31
Ransom 14.6 gh 32.4 - - 20.8 abed 33
Forrest 36.0 a - - - -- 21.4 ab--
D64-4636 33.1 ab - - - - 17.1 ef--
Coker 69-87A 27.3 bcd- - - 17.6 def 
-
D674601 24.5 cde- - - - 22.9 ab 
-
FFR 666 22.4 def---- 17.9 cdef -
Coker 68-41 17.3 f g - - - - 21.7 
ab --
Coker 68-38 17.1 fg - - - -
21.6 ab--
CV% 14.1 10.7
IYield adjusted to 13% moisture and 60 pounds per bushel.
2iYields followed by the .same letter are not significantly different at .05 probabilitylel.Patn
dates were May 8 and June 28 for 1st and 2nd plantings, respectively, 1972.
Table 14. Maturity Date, Lodging, Plant Height and Height of First 
Pod of Soybean Varieties by
Planting. Dates When Grown on Prattville Experiment Field; 1972
Maturity dateldging rating.i 
Plant height He lh t o
Planting. Planting Planting 
Pl
Variety 1st 2nd. 1st 2nd 
1st 2nd 1st
In. In. In.
Dare Sept. 18 Oct. 2 1 
3.0 28 31 2.5
Forrest Sept. 18 Oct. 14 
1 3.4 28 30 2.7
D64-4636 Sept. 22 Oct. 18 1 2.1'26 
29 2.2
Coker 69-87A Sept. 22 Oct. 25 1 2.7 
27 31 3.7
Hood Sept. 21 Oct. 9 1 2.0 
30 31 3.5
Davis Sept. 24 Oct. 22 1 2.2 
36 33 5.2
Lee 68 Sept. 25 Oct. 16 1 2.4 28 28 
3.2
McNair 600 Sept. 28 Oct. 20 1 2.7 32 
33 4.0
FFR 666 Sept. 23 Oct. 25 1 
2.5 28 28 3.52.
Pickett 71 Sept. 28 Oct. 25 1 4.5 
29 27 3.52.
D67-4601 Oct. 5 Oct. 20 1 
1.6 30 33 3.53.
Bragg Oct. 5 Oct. 20 1 
3.4 37 34 5.51.
Ransom Sept. 28 Oct. 30 1 
1.4 30 31 4.73.
M~cNair 800 Oct. 9 Oct. 20 1 
1.2 36 30 5.73.
Coker 6838 Oct. 15 Nov. 1 2 
4.1 36 35 5.52.
Coker 6841 Oct. 16 Nov. 1 2.1 4.2 
40 34 5.22.
Hampton 266A Oct. 14 Nov. 1 2.1 
4.2 38 34 6.02.
Hutton Oct. 16 Nov. 1 1.1 
3.0 35 34 4.72.
IWMa turity was taken as the date when the pods 
were dry
most conditions the stems were also dry.
and most of the leaves had dropped.
2 1
P1anting dates were May 8 and June 28 for 1st and 2nd plantings, respectively.
./Lodging ratings were recorded on a scale from 1 to 5 according to: I = almost all pla
and 5 = all plants down.
Under
Average Maturity Date, Lodging, Plant Height, and Height of First Pod of
by Planting Dates When Grown on Prattville Experiment Field, 1971 & 72
Soybean Varieties
Maturity date_ Lodging rating/ Plan
t 
height Height st pod
Planting/ Planting Planting Planting
Variety 1st 2nd 1st 2nd Ist 2nd 1st 2nd
In. In. In. In.
Dare Sept. 24 Oct. 7 1 2.3 28 28 2.7 3.4
Hood Oct. 1 Oct. 12 1.1 2.4 29 29 3.2 2.9
Davis Oct. 5 Oct. 20 1 2.3 36 32 4.3 2.8
McNair 600 Oct. 7 Oct. 18 1 2.6 32 31 3.4 1.8
Lee 68 Oct. 6 Oct. 16 1 3.2 30 28 3.3 2.5
Pickett 71 Oct. 7 Oct. 22 1 4.5 30 26 3.2 2.1
Bragg Oct. 12 Oct. 22 1 3.2 39 33 5.5 2.1
Ransom Oct. 10 Oct. 27 1 1.2 31 30 4.5 3.1
McNair 800 Oct. 14 Oct. 20 1.5 1.8 36 28 4.5 3.1
Hampton 266A Oct. 22 Oct. 30 1.5 3.6 40 34 5.0 2.4
Hutton Oct. 20 Oct. 30 1 2.3 38 33 4.7 2.9
-'Maturity was taken as the date when the pods were dry and most of the leaves had dropped.
conditions the stems were also dry.
1/Average planting dates were May 7 and June 21 for 1st and 2nd plantings, respectively.
Under most
/Lodging ratings were on a scale from 1 to 5 according to 1 = almost all plants erect and 5 = all
plants down.
Table 15.
Seed Quality and Size For Soybean
Field, 1972
Varieties by Planting Dates When Grown at Prattville
Seed ua ity ratinI Purple stain ratingtuberofSep
Planting2/ Planting 
Plai
Variety 1st 2nd 
1st 2nd 1st
Thous. T~s
Dare 1.5 2 
1 2 276
Forrest 2 4 1 1.5 272
D64-4636 1.5 2 1 1.5 257
Coker 69-87A 2 2 1 3 276
Hood 2.5 3 1 2 245
Lee 68 1 1.5 1 2 324
Davis 2 2 1 3 237
McNair 600 2 3 1.5 3 285
Pickett 71 1.5 1.5 1 3 34923
FFR 666 2 1.5 1 2 28323
D 67-4601 2 2 1 1 25016
Bragg 3 2 1 4 35319
Ransom 2 2 1 5 33618
McNair 800 2 1.5 1 2 34021
Coker 68-38 2.5 3 1 5 34419
Coker 68-41 2.5 3 1.5 4 32819
Hampton 266A 3 2 2 2 26920
Hutton 3 1.5 1 2' 29119
I'S eed quality ratings were on a scale from
2
/planting dates were May 8 and June 28 for
1'Purple stain ratings were on a scale from
20% purple staining.
1 to 5 according to 1 = very good and 5 = very poor.
1st and 2nd plantings, respectively.
Ito 5 according to I = no purple staining and 5 = over
Table 16.
Table 17. Yield of Soybean Varieties Tested at the Sand Mountain Substation
1
!
Soybean Yield by 5 yr. Average Planting
May 3 May 27
1 yr. 2 yr. 3 yr. 4 yr. 5 yr. l yr. 2 yr. 3 yr. 4 yr. 5yr.1 r. 2
Variety 722/ 71-72 70-72 69-72 68-72 72.. 71-72 70-72 69-72 68-22 /
Bu/A BuIA Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A
Bragg 25.6 a 39.1 41.1 39.4 40.2 27.7 a 36.7 37.7 37.0 38.3 28.4
Lee 68 22.7 cd 37.6 40.4 39.0 39.5 25.3 ab 33.6 34.0 
33.1 34.7 26.7
Davis 16.2 f 33.7 38.1 38.2 38.8 17.4 de 30.8 
32.8 33.1 34.4 22.7
Dare 9.0 h 29.0 36.4 37.3 37.5 12.1 f 24.8 28.9 29,5 287 18.2g
Hood 8.2 h 26.3 33.6 35.4 36.6 14.5 ef 28.2 31.1 31.0 
32.8 21.6
McNair 800 16.6 f 31.5 35.2 35.7 - 19.1 cde 31.5 32.9 32.7 
- 28.9
Pickett 71 23.8 bc 38.9 41.4 -n-w23.8 abc 32.6 34.0 -
- 25.9a
Hutton 22.1 de 36.9 41.2 26.0 ab 34.4 35.6 - - -
McNair 600 22.5 cd 37.2 40.7 - - 25.6 ab 34.7 36.6 -
- 26.4
Ransom 22.7 cd 40.6 - - - 27.8 8 37.3 
- - - .26.8ab 30 -
Forrest 14.0 g 34.9 - - - 21.7 bcd -
- - - 28.3a - -
D64-4636 16.5 f 32.4 - - 19.2 cde- 
- - - 23.3 ee
Coker 68-41 24.9 ab - - - - 25.3 ab - - -
- -
FFR 666 21.7 de- - - 23.4 abc -
- - - 24.6bce1
Coker 69 87A 21.3 e - - - - 21.8 bcd 
- - - - 23.0de - -
C.V.% 4.2 13.8 
8.7
!-Yields adjusted to 13% moisture and 60 pounds per bushel.
!lYields followed by the same letter are not significantly different 
at .05 probabilitylel. Patndts
were May 1, May 24, and June 20 for 1st, 2nd and 3rd plantings, 
respectively for 1972.
5 yr.
BuIA
30.3
30.1
30.4
30.7
30.1
r, r
Table 18. Maturity Date, Lodging, Plant Height and Height of
Dates When Grown on Sand Mountain Substation, 1972
First Pod of Soybean Varieties 
by Planting
Maturity dateot Ztin 
1 ant height eih 1st 
pod
P1antin5fT7 Planting Planting
1t2ardety 3r st 2nd 3rd lt 2nd 3rd1st 2nd 3rd 
In. In. In. I
Dare Sept. 22 Sept. 28 Oct. 13 2.8 2.8 3.5 37 39 
38 8
Forrest Sept. 22 Sept. 28 Oct. 18 
2.3 2.8 4.0 38 39 36 8
D64-4636 Sept. 28 Oct. 13 Oct. 
18 2.8 2.8 3.3 34 35 
30 7
Coker 69-87A Oct. 4 Oct. 13 
Oct. 18 3.3 3.3 2.8 38 
38 34 8
Hood Sept. 22 Sept. 28 
Oct. 18 4.0 3.3 3.8 36 37 
32 8
Lee 68 Oct. 13 Sept. 18 Oct. 24 4.3 
3.5 4.0 37 33 36 7
Davis Oct. 13 Sept. 18 
Oct. 30 4.3. 3.8 3.5 39 41 
34 93 9.75
McNair 600 Oct. 13 Sept. 18 Oct. 
18 4.0 3.8 3.3 38 40 
32 7.65 60
Pickett 71 Oct. 13 Sept. 18 Oct. 
24 3.8. 4.0 3.8 35 36 
32 7.73 75
FFR 666 Oct. 13 Sept. 13 Oct. 
18 3.8 4.0 4.0 34 34 29 
7.3 83 75
Bragg Oct. 18 Sept. 30 Oct. 30 
3.0 3.0 3.8 43 45 38 
11.90 90
Ransom Oct. 18 Sept. 30 Oct. 30 
2.8 3.3 2.8 35 39 33 
7.85 95
McNair 800 Oct. 13 Sept. 24 Oct. 30 5.0 
3.8 2.3 35 35 29 9.0 88 
1.
Coker 68-41 Oct. 24 Sept. 30 -
3.0 4.0 - 39 44 - 11.38
Hutton Oct. 18 Sept. 30 -
4.0 3.8 39 38 - 8.90-
I'Maturity was 
taken as the 
date when the 
pods were dry
and most of the leaves had dropped. Under most
conditions the stems were also 
dry.
/Pilanting dates were May 1, May 24, 
and June 20'for1st, 2nd, and 3rd plantings, 
respec
Lodgin ratings were on scale from 
1 to 5 according to 1-almost all plants 
erect an
down.
I
n
1.
Table 19. Average Maturity Date, Lodging, Plant Height, and Height of First Pod of Soybean Varieties by
Planting Dates When Grown on Sand Mountain Substation, 1971 & 1972
Maturity datef Lodging ratings Plant height Height 1st pod
Planting/ Planting Planting Planting
Variety 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 
3rd 1st 2nd 3rd
In. In. In. In. In. In.
Dare Sept. 21 Sept. 28 Oct. 13 2.4 2.6 3.1 33 37 34 6.4 5.9 5.6
Forrest Sept. 24 - - 2.1 - - 33 - - 6.1 -
D64-4636 Sept. 29 - - 1.9 - - 29 - - 5.9 -
Hood Sept. 25 Oct. 2 Oct. 18 3.6 3.1 2.9 34 35 30 6.7 5.9 5.6
Lee 68 Oct. 10 Oct. 13 Oct. 18 3.6 3.6 3.9 32 34 33 6.6 7.0 6.6
Davis Oct. 14 Oct. 18 Oct. 25 3.4 3.6 3.0 38 37 34 8.3 8.3 6.3
McNair 600 Oct. 10 Oct. 13 Oct. 17 3.4 3.6 2.8 36 37 33 5.4 6.0 5.2
Pickett 71 Oct. 13 Oct. 15 Oct. 21 3.4 3.9 3.6 32 35 31 6.3 6.3 
6.5
Bragg Oct. 17 Oct. 23 Oct. 25 3.4 3.2 3.0 43 40 35 9.0 8.5 7.7
Ransom Oct. 17 Oct. 24 Oct. 24 2.6 3.3 1.9 33 39 32 7.0 8.7 8.0
McNair 800 Oct. 12 Oct. 21 Oct. 24 4.2 3.6 2.0 34 35 29 7.7 8.3 7.6
Hutton Oct. 18 Oct. 25 - 3.9 4.4 - 38 39 - 7.7 10.1 -
1Maturity was taken as the date when the pods were dry and most of the leaves had dropped.
conditions the stems were also dry.
- Average planting dates were May 2, May 31, and June 26 for 1st, 2nd, and 3rd
1971 & 1972.
Under most
plantings, respectively for
Lodgingratings were on a scale from 1 to 5 according to I = almost all plants erect and 5 = all plants
down.
Seed Quality and Seed Size of Soybean Varieties by Planting
Substation, 1972
Dates When Grown on Sand Mountain
'Seedquality ratin f Purple Stain rating.. 
Number of Seed per Bushel
Planting2f Planting Planting
Variety 1st 2nd 3rd 1st 2nd 3rd 1st 2nd
ThuThous. Thous .
Dare 5 5 5 1 1 1 4/41
Forrest 5 5 3 1 1 
1
D64-4636 5 5 2 1 1 1 205 192
Coker 69-87A 5 5 3 1 1 2 173 17
Hood 5 5 5 1 1 1 _419
Lee 68 5 3.5 2.5 1 1 2 197 180
Davis 5 5 3 1 1 1 
185 16316
McNair 600 5 5 5 1 1 1 184 192L 19
Pickett 7l 5 4 2 1 1 1 
199 18617
FFR 666 5 5 5 1 1 1 184 
18021
Bragg 5 3 4 1.5 1 2 173 
15114
Ransom 5 4 3 1 1 
1 168 15415
McNair 800. 5 5 1.5 1 1 2 245 18318
Coker 68-41 3 2 - 1.5 2 - 162 146
Hutton 4 4 - 2 1 -
177 150-
l/Seed quality ratings were on a scale from I
Z2/Planting dates were May 1, May 24, and June
Plants were harvested January 16, 1973.
3/Purple stain ratings were on a scale from 1
over 20% purple staining.
4
/Seed quality too poor to make size determina
to 5 according to 1 = very good and
20 for 1st, 2nd, and 3rd plantings,
= very poor.
respectively.
to 5 according to 1 = no purple staining and 5 =
Table 20.
Table 21. Yield of Soybean Varieties Tested at the Upper Coastal Plain Substationl/
Soybean yield by average planting dates
May 12
Slr.
21  
2 yr. 3 yr. 4 yr. 5 yr. 1 yr. 2yr. 3yr. 4yr. S
Ya-rigety 72 .71-72 70-72 6 9 
8- 2 727- 2 i-1. 69-7? 8
Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A Bu/A
Hood 24.3 a 24.4 23.4 19.4 31.2 22.3 a 31.9 
32.4 33.9
Dare 24.1 a 24.4 30.6 32.3 31.1 20.8 a 
29.8 30.4 31.4
Davis 16.0 b 21.0 22.4 26.5 30.6 24.8 
a 34.8 33.8 36.9
Bragg 15.8 b 21.3 23.4 25.6 30.2 
21.6 a 30.4 29.2 32.5
Hampton 266A 18.5 b 22.2 22.1 24.7 29.6 22.5 a 34.1 32.4 
36.0
Lee 68 17.3 b 22.0 21.4 24.1 29.1 24.5 a 31.7 
30.5 33.6
McNair 800 18.3 b 21.0 22.1 26.2 - 21.0 a 
28.8 29.1 32.2
F63-4000 16.6 b 22.2 23.8 
23.5 a 33.9 30.7 -
Pickett 71 18.0 b 21.2 23.0 -
- 23.9 a 31.2 30.9 -
McNair 600 17.1 b 23.7 22.7 -.-
26.1 a 32.8 31.3 -
Ransom 15.6 b 22.3 a - -
25.3 a 33.9 --
D68-128 26.6 a - - - 24.5 a - - - -
D64-4636 24.1 a - - - -
24.1 a - - - -
FFR 666 19.O b - - - -
25.8 a - - -
Coker 68-41 17.2 b - - -- - 19.8 a 
- - - -
Coker 69-87A 15.9 b - - -
26.0Oa - - - -
Coker 68-38 15.6 b - - - - 23.4 
a - - - -
C.V.% 11.7 
16.9
2
11
Yilds adjusted
?/Yields 
followed
Planting dates were May 5 and June 21 for 1st and 2nd 
plantings, respectively.
to 13% moisture and 60 pounds per bushel.
by the same letter are not significantly different at 
.05 probability level.
Maturity Date, Lodging, Plant Height, and Height of First Pod of
on Upper Coastal' Plain Substation, 1972
Soybean Varieties When Grown
Maturity date Lodging rating.., Plant height Ht
Planting..- Planting Planting Pla
Variety 1st 2nd tst 22nd 1st
In. In. In.
Dare Sept. 27 Oct. 3 1.7 2.0 42 30 4.0
Forrest Sept. 27 Oct. 9 1.5 1.5 43 33 5.0
Hood Sept. 27 Oct. 9 2.0 1.7 41 30 4.2
Lee 68 Oct. 3 Oct. 18 2.0 2.5 39 33 5.7
Davis Sept. 27 Oct. 3 1.0 1.0 42 38 3.7
McNair 600 Sept. 27 Oct. 9 1.0 1.0 43 34 5.0
D644636 Sept. 27 Oct. 3 1.2 1.0 38 32 3.2
Coker 69.87A Sept. 27 Oct. 9 1.0 1.2 40 35 5.547
Pickett 71 Oct. 9 Oct. 18 1.5 3.0 38 38 4.55.
FFR 666 Sept. 27 Oct. 9 1.0 2.5 40 33 5.05.
Bragg Oct. 18 Oct. 18 1.0 1.7 50 40 7.07.
Ransom Oct. 3 Oct. 18 1.2 1.0 43. 35 5.085
McNair 800 Oct. 18 Oct. 18 2.0 1.0 40 30 5.56.
Coker 68-38 Oct. 18 Nov. 6 1.2 2.7 43 38 4.55.
Coker 68-41 Oct. 24 Oct. 24 1.7 2.5 50 42 4.73.
Hampton 266A Nov. 6 Nov. 6 1.5 2.7 48 42 6.545
Hutton Oct. 18 Oct.. 24 2.0 2.0 44 34 5.57.
4
aturity was taken as the date when the pods were dry
most conditions the stems were also dry.
/Planting dates were May 5
and most of the leaves had dropped.
and June 21 for 1st and 2nd plantings, respectively.
'Lodging ratings were recorded on a scale from 1 to 5 according to: 1 = almost all plan
and 5 = all plants down.
Table 22.
Under
Average Maturity Dates, Lodging, Plant Height and Height of First Pod
When Grown on Upper Coastal Plain Substation, 1971-72 Average
of Soybean Varieties
Maturity date Lodging rating Plant height H
Plantn
2
' PlantingPlantinggPlanting
Variety sst 2nd 1st 2nd 
1st22nd
In. En. I.1n
Dare Sept. 29 Oct. 11 1.4 1.8 34 31 
3
Hood Oct. 6 Oct. 14 1.5 1.4 34 
30 4
McNair 600 Oct. 8 Oct. 18 1.0 1.1 
39 32 4
Davis Oct. 8 Oct. 14 1.0 1.0 38 
36 4.55
Lee 68 Oct. 9 Oct. 18 1.5 2.0 
34 31 5.49
Ransom Oct. 11 Oct. 25 1.1 1.0 
38 34 546.
Pickett 71 Oct. 14 Oct. 22 1.3 2.0 33 
33 4.39
McNair 800 Oct. 18 Oct. 24 1.5 1.0 36 
29 5.47
Bragg Oct. 18 Oct. 23 1.0 1.4 
46 34 7.56
Hutton Oct. 18 Oct. 28 1.5 1.5 
41 34 6.54
Hampton 266A Oct. 31 Nov. 5 1.3 
2.1 43 41 6.48
L/aturity was taken as the data when
most conditions the stems were also
the pods were dry and
dry.
most of the leaves had dropped.
2/Average planting dages were May 12 and June 
26 for 1st and 2nd
l'Lodging ratings were recorded on a scale from 
1 to 5 according
5 = all plants down.
plantings, respectively.
to 1 = almost all plants erect and
Table 23.
Under
Seed Quality, Purple Stain and Number
Upper Coastal Plain Substation, 1972
of Seed per Bushel for Soybean Varieties Grown on
Seed quality rating!
Planting
1st 2nd
Purple Stain rating
Planting
1St 2nd
Number of Seed per Bushel
Plant ing
1st 2nd
Thou s. Thous.
Dare
Forrest
Hood
Lee 68
Davis
McNair 600
D64-4636
Coker 69-87A
Pickett 71
FFR- 666
Bragg
Ransom
McNair 800
Coker 68-38
Coker 68-41
Hampton 266A
Hutton
11
Seed quality ratings were
'Planting dates were May 5
2
!Purple stain ratings were
20% purple staining.
on a scale from 1 to 5 according to 1 = very good and 5 very poor.
and June 21 for 1st and 2nd plantings, respectively.
on a scale from 1 to 5 according to 1 = no purple staining and 5 =.over
Table 24.
Variety
1. 0
1.5
1.5
1.0
2.0
2.0
1.0
2.*0
100
1.0
2.0
2.0
1.5
1.5
2.0
2.0
1.5
1.0
1.0
1.0
1.5
1.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.5
1.5
1.0
1.0
1.0
1.0
.0
1.0
1.0
1.0
2.0
1.0
200
2.0
1.0
2.0
1.5
1.0
2.5
5.0
5.0
1.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
1.0
2.0
2.0
1.5
5.0
4.0
5.0
1.0
271
294
245
272
25 6
294
231
240
288
294
234
261
269
212
212
191
207
291
291
281
231
252
264
297
210
239
256
189
195
255
201
190
197
193
--- --------- - - -
--- -
r
Table 25. Maturity Date, Lodging Rating, Plant Height, and Yield of Soybean Varieties 
Grown on
Tennessee Valley Substation, 1972
Lodging2/ Plant Height Yield
3
' 2 Year Avg.
Variety Maturity Datel/ % Inches '72 71-72
Bu/A Bu/A
Ransom Oct. 17 2.2 44 46.0 bc 46.3
McNair 800 Oct. 16 3.7 39 38.4 c 44.5
Bragg Oct. 17 3.2 48 43.0 bc 44.4
Davis Oct. 18 3.7 43 48.7 abe
FFR 666 Oct. 18 4.7 36 51.5 abc
Coker 68-41 Oct. 22 3.3 50 45.9 bc
F63-4000 Oct. 23 3.3 47 54.1 ab
Coker 68-38 Oct. 25 2.8 48 59.9 a
C.V.% 9.2
"Maturity was taken as the date when the pods were dry and most of the
most conditions the stems were also dry.
2/Lodging ratings were on 
a scale of 1 to 5 according 
to 1 = almost all
plants down.
leaves had dropped. Under
plants erect and 5 = all
/Yields adjusted to 13% moisture and 60 pounds per bushel. Planted May 4, 1972. Yields followed
by the same letter are not significantly different at .05 probability level.