Location 4 - Prairie Research Unit, Prairie

Soil type Houston clay
Soil pH 7.3
Soil fertility P - M, K - H
Fertilizer added None
Herbicide application Group IV -- Preemergence - Broadstrike @ 1 qt/a + Dual
Postemergence - 2 applications of Assure II
@ 6 oz/a + Surfactant
Group V-VI -- Preemergence - Broadstrike @ 1 qt/a + Dual + Roundup @ 1 qt/a + Surfactant
Postemergence - Assure II @ 6 oz/a + Surfactant
Planting date Group IV 4/10/97
Group V 5/2/97
Harvest date Group IV Early 9/16/97
Group IV Late 9/23/97
Group V 10/3/97
Group VI 10/23/97

Location Summary

Environmental growing conditions for 1997 soybean emergence and growth had above-normal rainfall and below-normal temperatures until June. Then, rainfall was not as frequent as in early spring, and temperatures were hotter. This caused some periods of stress on the soybean plants.

Rainfall Summary

April 5.00 inches
May 11.15 inches
June 4.75 inches
July 6.05 inches
August 1.65 inches
September 4.10 inches
Total 32.70 inches

Rainfall graph - Location 4

Table 47. Maturity Group IV Early Soybeans Planted April 10, 1997, at the Prairie Research Unit in Prairie1
Variety2 Brand Yield3 Maturity date Plant height Lodging score
1995 1996 1997
  bu/a bu/a bu/a   in  
Released Varieties
AP 4880
 
AgriPro
 
 --
 
 --
 
 45.3
 
9/15
 
23
 
1
TN4-86
 
Public
 
 --
 
 --
 
 40.6
 
9/4
 
23
 
1
DP 3478
 
Deltapine
 
 --
 
 --
 
 38.8
 
9/15
 
23
 
1
A4715
 
Asgrow
 
 --
 
 --
 
 36.9
 
9/2
 
21
 
1
TV 4479
 
Terral
 
 --
 
 --
 
 36.7
 
9/2
 
22
 
1
TV4664
 
Terral
 
 --
 
 --
 
 36.3
 
9/2
 
20
 
1
HY 4540
 
HyPerformer
 
 --
 
 --
 
 36.2
 
9/4
 
22
 
1
S46-44
 
NK
 
 --
 
 --
 
 35.7
 
9/4
 
25
 
1
STRESSLAND
 
Public
 
 --
 
 --
 
 34.3
 
8/25
 
23
 
1
HBK4755
 
Hornbeck
 
 --
 
 --
 
 33.14
 
9/2
 
21
 
1
A4341
 
Asgrow
 
 --
 
 --
 
 29.9
 
9/4
 
26
 
1
Overall mean
 
 --
 
 --
 
 36.7
  
LSD (.10)
 
 --
 
 --
 
  5.7
  
Error degrees of freedom
 
 --
 
 --
 
 20
  
CV (%)
 
 --
 
 --
 
 11.1
  
R2(%)
 
 --
 
 --
 
 70
  
1Houston Clay.
2All are released varieties.
3No 1995 and 1996 averages.
4Shattered.

Table 48. Maturity Group IV Late Soybeans Planted April 10, 1997, at the Prairie Research Unit in Prairie.1
Variety Brand Yield2 Maturity date Plant height Lodging score
1995 1996 1997
  bu/a bu/a bu/a   in  
Released Varieties
Manokin
    
Public
 
 --
 
 --
 
 49.6
 
9/15
 
20
 
1
9511
    
Pioneer
 
 --
 
 --
 
 48.7
 
9/15
 
32
 
2
499
    
Riverside
 
 --
 
 --
 
 47.6
 
9/22
 
38
 
2
Dixie 478
    
Dixie
 
 --
 
 --
 
 47.53
 
9.2
 
27
 
1
HBK 49
    
Hornbeck
 
 --
 
 --
 
 43.3
 
9/15
 
38
 
3
S51-00
    
NK
 
 --
 
 --
 
 43.1
 
9/15
 
26
 
1
9482
    
Pioneer
 
 --
 
 --
 
 41.13
 
9/4
 
24
 
1
TN4-86
    
Public
 
 --
 
 --
 
 40.8
 
9/4
 
27
 
1
TN4-94
    
Public
 
 --
 
 --
 
 40.7
 
9/15
 
25
 
1
S48-14
    
NK
 
 --
 
 --
 
 38.8
 
9/11
 
20
 
1
HBK 5149
    
Hornbeck
 
 --
 
 --
 
 38.5
 
9/19
 
24
 
1
DK4860
    
Delta King
 
 --
 
 --
 
 38.1
 
9/4
 
20
 
1
KS 4895
    
Public
 
 --
 
 --
 
 37.0
 
9/17
 
25
 
1
3495
    
Dyna-Gro
 
 --
 
 --
 
 36.9
 
9/15
 
36
 
2
A4922
    
Asgrow
 
 --
 
 --
 
 36.83
 
9/4
 
25
 
1
Delta Grow 4710
    
Delta Grow
 
 --
 
 --
 
 36.4
 
9/11
 
24
 
1
Wicomico
    
Public
 
 --
 
 --
 
 36.2
 
9/17
 
26
 
1
CX 499c
    
DEKALB
 
 --
 
 --
 
 34.53
 
9/2
 
28
 
1
TV4770
    
Terral
 
 --
 
 --
 
 33.3
 
9/15
 
24
 
1
Experimental Lines
RVS 490
    
Riverside
 
 --
 
 --
 
 48.7
 
9/19
 
36
 
2
TVX4975
    
Terral
 
 --
 
 --
 
 46.1
 
9/19
 
27
 
1
DPS 9749
    
Deltapine
 
 --
 
 --
 
 45.3
 
9/17
 
26
 
1
HBK X9748
    
Hornbeck
 
 --
 
 --
 
 40.43
 
9/4
 
26
 
1
DGC750
    
DEKALB
 
 --
 
 --
 
 37.13
 
8.27
 
24
 
1
DGC751
    
DEKALB
 
 --
 
 --
 
 36.6
 
9/2
 
24
 
1
DK LDKX49994
    
Delta King
 
 --
 
 --
 
 31.33
 
9/4
 
29
 
1
Overall mean
 
 --
 
 --
 
 40.8
  
LSD (.10)
 
 --
 
 --
 
  5.1
  
Error degrees of freedom
 
 --
 
 --
 
 48
  
CV (%)
 
 --
 
 --
 
  9.0
  
R2(%)
 
 --
 
 --
 
 75
  
1Houston Clay.
2No 1995 and 1996 averages.
3Shattered.

Table 49. Maturity Group V Early Soybeans Planted May 2, 1997, at the Prairie Research Unit in Prairie.1
Variety Brand Yield2 Maturity date Plant height Lodging score
1995 1996 1997
  bu/a bu/a bu/a   in  
Released Varieties
H5050
    
Hartz
 
 --
 
 --
 
 44.3
 
9/22
 
22
 
1
TV 5797
    
Terral
 
 --
 
 --
 
 43.2
 
9/26
 
21
 
1
A5547
    
Asgrow
 
 --
 
 --
 
 43.0
 
9/24
 
20
 
1
TV5495
    
Terral
 
 --
 
 --
 
 41.8
 
9/24
 
23
 
1
CX 510C
    
DEKALB
 
 --
 
 --
 
 39.8
 
9/15
 
19
 
1
TV 5770
    
Terral
 
 --
 
 --
 
 38.4
 
9/22
 
22
 
1
H5218
    
Hartz
 
 --
 
 --
 
 37.8
 
9/17
 
18
 
1
Delsoy 5500
    
Public
 
 --
 
 --
 
 36.9
 
9/17
 
23
 
1
RVS 5291
    
Riverside
 
 --
 
 --
 
 36.6
 
9/19
 
36
 
1
RVS 549
    
Riverside
 
 --
 
 --
 
 36.2
 
9/19
 
24
 
1
499
    
Riverside
 
 --
 
 --
 
 36.0
 
9/24
 
37
 
1
TN5-95
    
Public
 
 --
 
 --
 
 34.5
 
9/15
 
26
 
1
H5454
    
Hartz
 
 --
 
 --
 
 33.8
 
9/19
 
20
 
1
Pace
    
Public
 
 --
 
 --
 
 32.9
 
9/19
 
25
 
1
RVS 77
    
Riverside
 
 --
 
 --
 
 32.8
 
9/29
 
21
 
1
S57-11
    
NK
 
 --
 
 --
 
 32.7
 
9/15
 
19
 
1
Hutcheson
    
Public
 
 --
 
 --
 
 32.2
 
9/22
 
19
 
1
R Robin-5
    
Riverside
 
 --
 
 --
 
 31.9
 
9/22
 
19
 
1
DK 5475
    
Delta King
 
 --
 
 --
 
 31.4
 
9/22
 
18
 
1
DP 3519s
    
Deltapine
 
 --
 
 --
 
 31.3
 
9/17
 
22
 
1
Rhodes
    
Public
 
 --
 
 --
 
 29.7
 
9/29
 
20
 
1
HY574
    
HyPerformer
 
 --
 
 --
 
 20.4
 
9/22
 
24
 
1
Experimental Lines
Delta Grow 5330
    
Delta Grow
 
 --
 
 --
 
 41.4
 
9/17
 
19
 
1
DPS 9752
    
Deltapine
 
 --
 
 --
 
 38.5
 
9/17
 
20
 
1
DGC753
    
DEKALB
 
 --
 
 --
 
 36.2
 
9/17
 
19
 
1
DK LDKX57722
    
Delta King
 
 --
 
 --
 
 30.9
 
9/15
 
21
 
1
J94-5
    
Public
 
 --
 
 --
 
 30.7
 
9/17
 
17
 
1
DK LDKX51496
    
Delta King
 
 --
 
 --
 
 27.5
 
9/29
 
15
 
1
Overall mean
 
 --
 
 --
 
 34.9
  
LSD (.10)
 
 --
 
 --
 
  8.1
  
Error degrees of freedom
 
 --
 
 --
 
 58
  
CV (%)
 
 --
 
 --
 
 17.0
  
R2(%)
 
 --
 
 --
 
 55
  
1Houston Clay.
2No 1995 and 1996 averages.

Table 50. Maturity Group V Late Soybeans Planted May 2, 1997, at the Prairie Research Unit in Prairie.1
Variety Brand Yield2 Maturity date Plant height Lodging score
1995 1996 1997
  bu/a bu/a bu/a   in  
Released Varieties
9594
    
Pioneer
 
 --
 
 --
 
 45.5
 
9/26
 
22
 
1
55
    
Buckshot
 
 --
 
 --
 
 44.3
 
9/29
 
21
 
1
A5959
    
Asgrow
 
 --
 
 --
 
 42.9
 
9/22
 
19
 
1
DP 3588
    
Deltapine
 
 --
 
 --
 
 42.8
 
9/24
 
18
 
1
A5944
    
Asgrow
 
 --
 
 --
 
 42.8
 
9/29
 
18
 
1
TV 5893
    
Terral
 
 --
 
 --
 
 41.5
 
9/24
 
28
 
1
Hutcheson
    
Public
 
 --
 
 --
 
 41.0
 
9/22
 
16
 
1
UARK-5896
    
Public
 
 --
 
 --
 
 40.7
 
9/29
 
21
 
1
A5848
    
Asgrow
 
 --
 
 --
 
 39.7
 
9/29
 
21
 
1
S59-60
    
NK
 
 --
 
 --
 
 39.7
 
9/24
 
19
 
1
A5843
    
Asgrow
 
 --
 
 --
 
 39.5
 
9/26
 
22
 
1
3576
    
Dyna-Gro
 
 --
 
 --
 
 37.2
 
9/17
 
20
 
1
ACCOMAC
    
Public
 
 --
 
 --
 
 36.5
 
9/26
 
25
 
1
DK5995
    
Delta King
 
 --
 
 --
 
 35.4
 
9/22
 
18
 
1
HLA572
    
Hartz
 
 --
 
 --
 
 35.1
 
9/24
 
21
 
1
CX570C
    
DEKALB
 
 --
 
 --
 
 35.1
 
9/29
 
20
 
1
DK 5850
    
Delta King
 
 --
 
 --
 
 34.3
 
9/19
 
20
 
1
TV5926
    
Terral
 
 --
 
 --
 
 34.2
 
9/24
 
22
 
1
Experimental Lines
R92-1294
    
Public
 
 --
 
 --
 
 48.0
 
9/24
 
26
 
1
HBK X9659A
    
Hornbeck
 
 --
 
 --
 
 47.1
 
9/29
 
17
 
1
DGC759
    
DEKALB
 
 --
 
 --
 
 42.6
 
9/24
 
19
 
1
DGC758
    
DEKALB
 
 --
 
 --
 
 41.0
 
9/19
 
24
 
1
HBK X9657A
    
Hornbeck
 
 --
 
 --
 
 37.5
 
9/24
 
22
 
1
J94-7
    
Public
 
 --
 
 --
 
 34.4
 
9/19
 
22
 
1
DK LDKX54589
    
Delta King
 
 --
 
 --
 
 30.4
 
10/01
 
19
 
1
S92-1679
    
Public
 
 --
 
 --
 
 28.6
 
10/01
 
22
 
1
Overall mean
 
 --
 
 --
 
 39.2
  
LSD (.10)
 
 --
 
 --
 
  6.7
  
Error degrees of freedom
 
 --
 
 --
 
 52
  
CV (%)
 
 --
 
 --
 
 12.5
  
R2(%)
 
 --
 
 --
 
 75
  
1Houston Clay.
2No 1995 and 1996 averages.

Table 51. Maturity Group IV Soybeans Planted May 2, 1997, at the Prairie Research Unit in Prairie.1
Variety Brand Yield2 Maturity date Plant height Lodging score
1995 1996 1997
  bu/a bu/a bu/a   in  
Released Varieties
H6255
    
Hartz
 
 --
 
 --
 
 49.4
 
10/01
 
27
 
1
723
    
Buckshot
 
 --
 
 --
 
 47.9
 
10/17
 
28
 
2
9761
    
Pioneer
 
 --
 
 --
 
 47.9
 
10/17
 
27
 
1
H6191
    
Hartz
 
 --
 
 --
 
 47.9
 
10/17
 
20
 
1
RVS 678
    
Terra
 
 --
 
 --
 
 46.9
 
10/10
 
31
 
2
97b61
    
Pioneer
 
 --
 
 --
 
 46.2
 
10/20
 
33
 
2
9631
    
Pioneer
 
 --
 
 --
 
 46.0
 
9/29
 
31
 
2
9692
    
Pioneer
 
 --
 
 --
 
 45.8
 
10/13
 
24
 
1
DP 3681
    
Deltapine
 
 --
 
 --
 
 44.5
 
10/15
 
26
 
1
S62-62
    
NK
 
 --
 
 --
 
 44.5
 
9/24
 
23
 
1
9592
    
Pioneer
 
 --
 
 --
 
 44.1
 
9/24
 
30
 
1
S65-50
    
NK
 
 --
 
 --
 
 43.4
 
10/10
 
23
 
1
HY 663
    
HyPerformer
 
 --
 
 --
 
 43.4
 
10/06
 
24
 
1
DP3640
    
Deltapine
 
 --
 
 --
 
 43.2
 
10/01
 
26
 
1
A6785
    
Asgrow
 
 --
 
 --
 
 43.2
 
10/03
 
26
 
2
66
    
Buckshot
 
 --
 
 --
 
 42.4
 
10/17
 
29
 
1
Musen
    
Public
 
 --
 
 --
 
 42.2
 
10/15
 
30
 
1
BOGGS
    
SGA
 
 --
 
 --
 
 42.1
 
10/13
 
21
 
1
TV6792
    
Terral
 
 --
 
 --
 
 41.8
 
9/29
 
26
 
1
TN6-90
    
Public
 
 --
 
 --
 
 41.8
 
10/06
 
30
 
1
A6961
    
Asgrow
 
 --
 
 --
 
 41.4
 
10/17
 
32
 
1
A6297
    
Asgrow
 
 --
 
 --
 
 41.3
 
9/29
 
27
 
2
9611
    
Pioneer
 
 --
 
 --
 
 40.5
 
9/29
 
25
 
1
699
    
Riverside
 
 --
 
 --
 
 38.8
 
10/10
 
25
 
1
Dillon
    
Public
 
 --
 
 --
 
 37.9
 
10/03
 
24
 
1
Lamar
    
Public
 
 --
 
 --
 
 37.5
 
10/15
 
25
 
2
Young
    
Public
 
 --
 
 --
 
 37.1
 
10/06
 
32
 
2
A6711
    
Asgrow
 
 --
 
 --
 
 35.2
 
10/10
 
18
 
1
HBK 67
    
Hornbeck
 
 --
 
 --
 
 34.7
 
10/23
 
24
 
1
Experimental Lines
R92-1258
    
Public
 
 --
 
 --
 
 53.7
 
10/03
 
29
 
1
V88-494
    
Public
 
 --
 
 --
 
 47.5
 
10/10
 
23
 
1
SC89-147
    
Public
 
 --
 
 --
 
 45.3
 
10/10
 
25
 
1
R93-151
    
Public
 
 --
 
 --
 
 44.6
 
9/29
 
23
 
1
HBK X9666
    
Hornbeck
 
 --
 
 --
 
 42.2
 
10/03
 
28
 
1
R90-149s
    
Public
 
 --
 
 --
 
 40.9
 
10/01
 
26
 
1
HBK X9668
    
Hornbeck
 
 --
 
 --
 
 40.2
 
10/10
 
29
 
2
DGC762
    
DEKALB
 
 --
 
 --
 
 38.9
 
9/29
 
25
 
2
Overall mean
 
 --
 
 --
 
 43.0
  
LSD (.10)
 
 --
 
 --
 
  6.4
  
Error degrees of freedom
 
 --
 
 --
 
 72
  
CV (%)
 
 --
 
 --
 
 10.9
  
R2(%)
 
 --
 
 --
 
 62
  
1Houston Clay.
2No 1995 and 1996 averages.