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Location 1. Delta Branch Experiment Station, Stoneville

Soil type Sharkey clay
Soil pH 7.4
Soil fertility P-H+, K-H+
Fertilizer added None
Herbicide application Preplant - Conventional Tests: Squadron @ 3 pt/A + Prowl @ 0.6 pt/A
Preemergence - Roundup Ready Tests: Roundup Ultra @ 24 oz/A
Postemergence - Roundup Ready Tests: Roundup Ultra @ 32 oz/A (1 application)
Irrigation Conventional tests: June 16, June 17, June 28, July 8, July 28, and August 9
Roundup Ready tests: June 18, June 28, July 9, July 28, and August 6
Planting date May 7, 1998
Harvest date Group IV E Nonirrigated - September 9
Group IV E Nonirrigated - September 10
Group IV E & L Irrigated and Group IV L Nonirrigated - September 22
RR Group IV E & IV L, Irrigated & Nonirrigated - September 22
Group V E & L, Irrigated and Nonirrigated - September 28
RR Group V E & L, Irrigated and Nonirrigated - September 28

Location Summary

Good field preparation and good moisture ensured excellent conditions during the early growing season. Emergence was very good. Dry conditions during the months of June, July, August, and September significantly affected yields in the nonirrigated tests.

Rainfall Summary

  Inches
April 4.35   Rainfall Summary Graph
May 4.62
June 1.59
July 5.70
August 0.71
September 2.90
Total 19.87

Table 23.Maturity Group IV Early Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 19973 1998
  bu/A bu/A bu/A   in  
DP 3478 Deltapine 51.1 53.8 67.6 9/20 38 4
AP 4880 Agripro 53.3 58.1 66.6 9/18 38 4
A4604 Asgrow -- -- 64.7 9/10 31 2
HBK 4600 Hornbeck -- -- 63.4 9/17 32 2
TV4664 Terral -- 48.1 62.4 9/8 35 1
STRESSLAND Public 52.2 50.4 59.4 9/8 24 1
HBK4755 Hornbeck -- 46.2 58.4 9/8 29 2
TV 4479 Terral 52.9 41.1 57.9 9/17 29 2
HY 4540 HyPerformer 51.3 37.3 57.1 9/10 30 2
TN4-94 Public 44.2 48.7 54.8 9/20 47 4
X9240RR Delta King -- -- 54.0 9/18 40 3
S46-44 NK -- 49.1 53.2 9/10 34 2
TS 4792 Terra -- -- 50.3 9/17 46 3
TN4-86 Public 49.5 43.5 46.9 9/17 45 3
A4341 Asgrow 45.4 47.6 41.4 9/8 21 1
Overall Mean 49.4 46.9 57.3  
LSD (.10) 7.0 7.4 5.7  
Error degrees of freedom -- -- 30  
CV (%) -- -- 7.2  
R2 (%) -- -- 82  
1Sharkey Clay Soil.
2All are released varieties.
3Average of early planted and late planted.



Table 24. Maturity Group IV Late Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
HBK 4890 Hornbeck -- 55.1 75.6 9/18 40 4
9482 Pioneer -- 49.8 71.7 9/17 38 2
KS 4895 Public 49.1 56.4 68.4 9/22 41 3
DPX 8S49 (E)3 Deltapine -- -- 67.3 9/21 42 4
FFR 495 Elite -- -- 66.4 9/19 45 3
Dixie 478 Dixie 56.9 57.7 66.0 9/18 40 3
TV 4975 Terral -- 54.6 64.6 9/22 44 4
9511 Pioneer 57.1 56.2 63.7 9/20 43 4
HBK X9749 (E)3 Hornbeck -- -- 62.6 9/16 41 2
DP 3478 Deltapine 51.1 53.8 62.0 9/18 39 4
A4922 Asgrow 53.3 39.9 61.2 9/20 40 3
RVS 490 Riverside -- 58.3 60.8 9/22 50 4
3495 Dyna-Gro 44.1 56.1 59.2 9/19 48 5
9492 Pioneer -- -- 58.9 9/16 37 2
TV 4770 Terral 53.5 41.9 58.6 9/17 40 4
Genesis 9482 Genesis -- -- 57.5 9/16 37 2
HBK 49 Hornbeck 50.5 62.2 54.3 9/22 45 5
HBK 5149 Hornbeck -- 48.1 51.0 9/21 15 1
Manokin Public 46.1 53.8 45.6 9/20 16 1
Overall Mean 50.5 49.0 61.9  
LSD (.10) 7.4 6.5 5.7  
Error degrees of freedom -- -- 36  
CV (%) -- -- 6.7  
R2 (%) -- -- 81  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 25. Maturity Group IV Early Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 19973 1998
  bu/A bu/A bu/A   in  
DP 3478 Deltapine 56.6 27.9 25.5 9/2 31 2
HBK 4600 Hornbeck -- -- 25.4 9/4 27 1
TN4-86 Public 57.8 19.4 25.1 9/2 38 2
AP 4880 Agripro 63.2 28.4 24.9 9/1 27 1
HY 4540 HyPerformer 57.9 15.8 24.9 9/2 28 1
TV 4479 Terral 59.1 14 24.8 9/2 26 1
A4604 Asgrow -- -- 22.4 9/2 29 1
HBK4755 Hornbeck -- 16.9 22.2 9/2 25 1
TS 4792 Terra -- -- 22.1 9/2 42 2
X9240RR Delta King -- -- 21.7 9/5 32 1
TV4664 Terral -- 15.1 21.5 9/2 25 1
S46-44 NK -- 23.2 20.7 9/2 25 1
TN4-94 Public 54.7 19.1 17.3 9/8 37 1
A4341 Asgrow 43.9 19.5 17.2 9/2 21 1
STRESSLAND Public 50.2 14.1 15.1 9/1 25 1
Overall Mean 54.9 19.4 22.0  
LSD (.10) 6.2 3.9 3.1  
Error degrees of freedom -- -- 28  
CV (%) -- -- 10.0  
R2 (%) -- -- 77  
1Sharkey Clay Soil.
2All are released varieties.
3Average of early planted and late planted.



Table 26. Maturity Group IV Late Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
9482 Pioneer -- 23.2 25.4 9/4 29 2
DPX 8S49 (E)3 Deltapine -- -- 22.8 9/18 30 2
9492 Pioneer -- -- 22.7 9/2 29 1
KS 4895 Public 55.6 25.6 21.6 9/8 34 2
TV 4770 Terral 63.6 17.6 20.7 9/6 28 1
HBK X9749 (E)3 Hornbeck -- -- 20.4 9/2 31 2
Manokin Public 50.6 29.2 20.0 9/16 14 1
A4922 Asgrow 57.3 18.1 19.9 9/3 31 1
HBK 49 Hornbeck 48.5 26.8 19.0 9/18 35 2
Genesis 9482 Genesis -- -- 18.7 9/2 31 1
DP 3478 Deltapine 56.6 27.9 18.0 9/4 31 1
Dixie 478 Dixie 64.6 17.7 17.7 9/4 26 1
FFR 495 Elite -- -- 17.5 9/6 30 1
9511 Pioneer 62.5 29.8 17.1 9/15 30 2
3495 Dyna-Gro 47.1 21.3 16.1 9/8 36 2
TV 4975 Terral -- 23.7 15.7 9/18 32 1
HBK 5149 Hornbeck -- 25.6 15.6 9/16 16 1
HBK 4890 Hornbeck -- 23.1 15.6 9/4 30 1
RVS 490 Riverside -- 24.8 13.0 9/8 37 2
Overall Mean 54.8 21.3 18.8  
LSD (.10) 4.8 7.2 3.6  
Error degrees of freedom -- -- 36  
CV (%) -- -- 14.0  
R2 (%) -- -- 69  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 27. Maturity Group V Early Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
95B33 Pioneer -- -- 74.5 9/17 20 1
DG500A (E)3 DEKALB -- -- 73.1 9/16 36 3
DK 5850 Delta King 58.8 50.4 64.7 9/19 20 1
V89-805 (E)3 Public -- -- 64.6 9/22 17 1
9511 Pioneer -- -- 63.9 9/26 45 3
Delsoy 5500 Public 55.6 52.1 61.3 9/24 20 1
A5547 Asgrow 64.4 49.7 61.0 9/21 16 1
DPX 8S56 (E)3 Deltapine -- -- 61.0 9/22 23 3
DP 5354 Deltapine -- 59.1 60.9 9/18 21 1
Genesis 9511 Genesis -- -- 60.3 9/20 18 1
X9855 (E)3 NK -- -- 57.8 9/21 19 1
A5704 Asgrow -- -- 57.7 9/20 17 1
Essex Public -- -- 56.5 9/15 12 1
55 Buckshot 67.1 38.5 55.7 9/23 20 1
R Robin-5 Riverside 57.1 35.2 54.7 9/21 18 1
H5050 Hartz 66.9 54.1 54.3 9/25 26 2
V90-1012 (E)3 Public -- -- 54.0 9/17 17 1
TN5-95 Public 55.5 46.9 53.7 9/18 18 1
S57-11 NK 59.1 51.4 53.4 9/22 21 1
DP 3519s Deltapine 55.5 34.1 53.2 9/20 16 1
RVS 77 Riverside 56.1 47.1 53.1 9/27 21 2
Essex RSVI (E)3 Public -- -- 52.5 9/16 13 1
HY 574 HyPerformer 66.1 51.4 52.2 9/27 22 2
X9851 (E)3 NK -- -- 51.1 9/15 16 1
RVS 520 Terra -- -- 49.7 9/28 55 4
Hutcheson Public 60.3 45.4 49.6 9/22 18 1
TV5495 Terral 57.5 43.5 49.3 9/25 33 2
DG500B (E)3 DEKALB -- -- 48.5 9/24 18 1
X9450RR Delta King -- -- 48.4 9/26 17 1
RVS 549 Riverside 62.3 51.2 48.1 9/22 19 1
RVS 529I Riverside 57.2 55.9 45.2 9/26 48 3
AP 572STS Agripro -- -- 42.3 9/28 19 1
Overall Mean 50.7 47.6 55.8  
LSD (.10) 8.2 6.3 5.2  
Error degrees of freedom -- -- 62  
CV (%) -- -- 6.9  
R2 (%) -- -- 85  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 28.Maturity Group V Late Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
DK5995 Delta King -- 51.5 70.1 9/26 23 1
DT95-15091 (E)3 Public -- -- 66.7 9/22 35 3
HBK 5770 Hornbeck -- 50.2 64.0 9/26 32 2
DT95-15550 (E)3 Public -- -- 63.8 9/19 25 2
9594 Pioneer 70.1 57.7 62.9 9/25 23 1
S59-60 NK 62.7 48.6 62.5 9/27 18 1
Caviness Public -- 50.1 61.6 9/19 18 1
HBK X571-98 (E)3 Hornbeck -- -- 60.8 9/27 23 1
CX570C DEKALB -- 58.4 60.5 9/20 18 1
S51-00 NK -- -- 60.1 9/22 38 3
DPX 8S59 (E)3 Deltapine -- -- 59.9 9/28 33 3
A5843 Asgrow 51.7 48.5 58.8 9/25 21 1
A5944 Asgrow 61.1 54.7 58.8 9/28 22 1
A5848 Asgrow 60.8 52.7 58.1 9/27 17 1
DG858 (E)3 DEKALB -- -- 57.2 9/27 20 2
UARK-5798 Public 70.6 56.1 55.9 9/27 25 1
3576 Dyna-Gro 56.8 42.4 55.8 9/21 16 1
Hutcheson Public 62.1 45.4 55.8 9/19 17 1
TV 5893 Terral 61.6 54.2 55.4 9/24 25 2
DP 3588 Deltapine 62.3 52.9 55.0 9/24 32 3
HBK 5990 Hornbeck -- 59.4 54.6 9/25 19 1
DT95-17556 (E)3 Public -- -- 54.4 9/25 18 1
DG758 DEKALB -- 52.7 53.5 9/24 24 1
A5959 Asgrow 62.4 52.8 52.9 9/25 21 1
UARK-5896 (E)3 Public 57.8 52.6 52.6 9/26 23 1
FFR 597 Elite -- -- 52.3 9/27 23 1
V91-3036 Public -- -- 51.9 9/22 16 1
TV5926 Terral -- 51.3 50.3 9/25 25 1
DG759 DEKALB -- 47.5 47.6 9/22 18 1
Overall Mean 51.5 49.8 57.7  
LSD (.10) 11.1 7.2 6.6  
Error degrees of freedom -- -- 56  
CV (%) -- -- 8.4  
R2 (%) -- -- 66  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 29. Maturity Group V Early Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
9511 Pioneer -- -- 15.5 9/18 29 2
A5704 Asgrow -- -- 14.1 9/20 17 1
DG500A (E)3 DEKALB -- -- 13.3 9/16 22 1
95B33 Pioneer -- -- 13.2 9/16 17 1
Genesis 9511 Genesis -- -- 13.1 9/17 15 1
Hutcheson Public 38.9 17.8 13.0 9/20 15 1
S57-11 NK 35.1 23.8 12.6 9/19 16 1
DP 5354 Deltapine -- 23.9 12.1 9/20 23 1
DK 5850 Delta King 39.4 13.8 11.6 9/28 19 1
55 Buckshot 37.7 14.1 11.5 9/26 20 1
X9855 (E)3 NK -- -- 11.4 9/19 17 1
DP 3519s Deltapine 37.3 10.1 11.2 9/19 16 1
X9851 (E)3 NK -- -- 11.2 9/22 13 1
TV5495 Terral 40.1 16.3 11.2 9/26 28 2
V89-805 (E)3 Public -- -- 10.9 9/18 17 1
A5547 Asgrow 33.8 15.7 10.3 9/18 16 1
R Robin-5 Riverside 35.1 10.6 10.0 9/26 19 1
Essex RSVI (E)3 Public -- -- 9.7 9/16 12 1
DPX 8S56 (E)3 Deltapine -- -- 9.4 9/26 28 2
HY 574 HyPerformer 45.3 24.3 9.4 9/26 26 1
TN5-95 Public 37.1 18.2 9.3 9/18 16 1
Essex Public -- -- 9.0 9/11 13 1
H5050 Hartz 39.2 25.8 8.9 9/20 26 1
DG500B (E)3 DEKALB -- -- 8.6 9/20 16 1
X9450RR Delta King -- -- 8.6 9/26 16 1
Delsoy 5500 Public 32.5 21.7 8.6 9/21 16 1
V90-1012 (E)3 Public -- -- 8.5 9/20 17 1
RVS 549 Riverside 39.9 19.4 8.4 9/25 16 1
RVS 77 Riverside 36.9 22.2 8.4 9/14 13 1
RVS 529I Riverside 32.6 21.3 8.1 9/24 35 2
AP 572STS Agripro -- -- 8.0 9/28 15 1
RVS 520 Terra -- -- 3.6 9/28 35 2
Overall Mean 34.8 18.4 10.4  
LSD (.10) 4.5 6.4 2.6  
Error degrees of freedom -- -- 62  
CV (%) -- -- 18.6  
R2 (%) -- -- 69  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 30. Maturity Group V Late Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 19972 1998
  bu/A bu/A bu/A   in  
DT95-15091 (E)3 Public -- -- 13.7 9/18 31 2
DT95-17556 (E)3 Public -- -- 12.9 9/20 17 1
Caviness Public -- 18.1 12.6 9/24 17 1
V91-3036 Public -- -- 12.0 9/25 18 1
CX570C DEKALB -- 25.5 12.0 9/26 24 1
DK5995 Delta King -- 18.7 11.5 9/18 24 1
9594 Pioneer 43.5 28.6 11.4 9/18 21 1
A5843 Asgrow 32.1 16.3 11.2 9/19 21 1
HBK X571-98 (E)3 Hornbeck -- -- 11.1 9/18 17 1
DPX 8S59 (E)3 Deltapine -- -- 10.9 9/30 30 2
A5848 Asgrow 34.9 24.1 10.8 9/20 16 1
A5959 Asgrow 46.1 22.2 10.7 9/26 18 1
HBK 5990 Hornbeck -- 26.5 10.7 9/30 21 1
UARK-5896 (E)3 Public 42.8 27.1 10.6 9/28 24 1
DG858 (E)3 DEKALB -- -- 10.5 9/20 19 1
S59-60 NK 39.3 22.7 10.4 9/29 19 1
UARK-5798 Public 48.6 32.2 10.4 9/20 21 1
S51-00 NK -- -- 10.3 9/16 26 2
A5944 Asgrow 35.3 24.4 10.3 9/20 18 1
DG758 DEKALB -- 30.9 10.2 9/21 22 1
DT95-15550 (E)3 Public -- -- 10.2 9/27 26 1
TV5926 Terral -- 23.8 9.8 9/29 21 1
DP 3588 Deltapine 39.1 29.8 9.8 9/30 30 1
FFR 597 Elite -- -- 9.4 9/28 23 1
3576 Dyna-Gro 31.9 20.3 9.2 9/14 17 1
Hutcheson Public 40.7 17.8 9.0 9/20 17 1
HBK 5770 Hornbeck -- 20.3 8.9 9/27 25 1
DG759 DEKALB -- 22.4 8.9 9/18 15 1
TV 5893 Terral 35.8 26.1 8.5 9/27 25 2
Overall Mean 37.1 21.9 10.6  
LSD (.10) 4.4 7.7 3.0  
Error degrees of freedom -- -- 56  
CV (%) -- -- 20.4  
R2 (%) -- -- 49  
1Sharkey Clay Soil.
2Average of early planted and late planted.
3(E) = Experimental.



Table 31. Roundup Ready Maturity Group IV Early Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 1997 1998
  bu/A bu/A bu/A   in  
AG4601 Asgrow -- 62.9 72.2 9/13 38 3
SF477RR SF Services -- 62.1 70.3 9/17 38 3
TV4466RR Terral -- -- 69.1 9/14 42 4
SG468RR Sure-Grow -- -- 67.4 9/14 40 4
H4252RR Hartz -- -- 66.9 9/16 39 3
AG4602 Asgrow -- -- 66.7 9/10 40 2
HBK R4515 Hornbeck -- -- 66.2 9/10 46 3
4762RR Delta King -- -- 65.3 9/17 47 3
TS 466RR Terra -- -- 64.1 9/8 42 3
TV4666RR Terral -- 59.6 63.7 9/10 47 3
AP 4602RR Agripro -- -- 63.5 9/10 43 3
H3090RR Hartz -- -- 62.6 9/7 37 2
FFR 467 Elite -- -- 61.6 9/16 40 3
CX460RR DEKALB -- -- 61.6 9/8 45 3
AG4501 Asgrow -- 56.9 61.3 9/10 45 3
2467NRR Willcross -- -- 61.2 9/10 44 3
Overall Mean -- 57.6 65.2  
LSD (.10) -- 6.1 4.9  
Error degrees of freedom -- 26 30  
CV (%) -- 7.6 5.4  
R2 (%) -- 82 59  
1Sharkey Clay Soil.
2All are released varieties.
3Not planted in 1996.



Table 32. Roundup Ready Maturity Group IV Late Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 1997 1998
  bu/A bu/A bu/A   in  
SG498RR Sure-Grow -- -- 73.8 9/20 39 3
9492 Pioneer -- -- 66.7 9/15 38 3
AG4702 Asgrow -- 62.8 65.6 9/17 37 3
94B81 Pioneer -- -- 65.0 9/17 42 4
H4994RR Hartz -- 66.8 64.4 9/19 22 2
DP 4969RR Deltapine -- -- 63.6 9/22 52 4
AP 4980RR Agripro -- -- 62.3 9/22 43 5
DK4965 Delta King -- -- 62.1 9/18 37 2
AG4901 Asgrow -- -- 60.5 9/17 38 2
3463RR Dyna-Gro -- 57.1 60.1 9/15 37 3
AG4701 Asgrow -- 55.1 58.8 9/15 40 3
DP 4750RR Deltapine -- -- 57.9 9/18 38 4
HBK R4898 Hornbeck -- 57.5 56.3 9/18 56 3
H4998RR Hartz -- 66.7 52.9 9/28 38 3
Overall Mean -- 57.6 62.2  
LSD (.10) -- 6.1 6.4  
Error degrees of freedom -- 26 26  
CV (%) -- 7.6 7.3  
R2 (%) -- 82 66  
1Sharkey Clay Soil.
2All are released varieties.
3Not planted in 1996.



Table 33. Roundup Ready Maturity Group IV Early Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 1997 1998
  bu/A bu/A bu/A   in  
SG468RR Sure-Grow -- -- 40.8 9/6 32 2
AG4601 Asgrow -- 31.1 40.4 9/6 35 3
2467NRR Willcross -- -- 38.6 9/2 38 2
TS 466RR Terra -- -- 38.5 9/2 37 1
SF477RR SF Services -- 32.2 38.1 9/6 34 1
H4252RR Hartz -- -- 37.4 9/1 37 3
AG4602 Asgrow -- -- 37.2 8/31 32 2
TV4466RR Terral -- -- 36.9 8/30 34 2
FFR 467 Elite -- -- 36.7 8/31 37 2
CX460RR DEKALB -- -- 35.7 8/31 38 2
AP 4602RR Agripro -- -- 35.5 9/2 38 1
TV4666RR Terral -- 21.1 34.7 9/1 31 1
HBK R4515 Hornbeck -- -- 34.5 9/2 36 2
4762RR Delta King -- -- 32.1 9/7 35 2
H3090RR Hartz -- -- 28.2 8/28 27 1
AG4501 Asgrow -- 23.4 27.1 9/1 36 1
Overall Mean -- 28.4 35.8  
LSD (.10) -- 4.6 4.0  
Error degrees of freedom -- 26 30  
CV (%) -- 11.7 8.2  
R2 (%) -- 80 74  
1Sharkey Clay Soil.
2All are released varieties.
3Not planted in 1996.



Table 34. Roundup Ready Maturity Group IV Late Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1,2
Variety Brand Yield Maturity date Plant height Lodging score
19963 1997 1998
  bu/A bu/A bu/A   in  
3463RR Dyna-Gro -- 27.4 40.3 8/31 39 3
AG4901 Asgrow -- -- 39.8 9/6 35 2
9492 Pioneer -- -- 39.1 9/2 37 2
DP 4750RR Deltapine -- -- 38.2 9/4 37 4
H4994RR Hartz -- 34.5 37.6 9/8 22 1
DP 4969RR Deltapine -- -- 35.8 9/10 38 3
SG498RR Sure-Grow -- -- 34.0 9/11 28 1
AG4702 Asgrow -- 35.9 33.7 9/1 32 2
94B81 Pioneer -- -- 33.0 9/28 39 4
AP 4980RR Agripro -- -- 32.6 9/2 35 3
DK4965 Delta King -- -- 32.4 9/3 31 2
HBK R4898 Hornbeck -- 27.3 31.4 9/6 39 3
AG4701 Asgrow -- 29.9 31.3 9/18 40 3
H4998RR Hartz -- 27.2 28.9 9/22 46 3
Overall Mean -- 28.4 34.9  
LSD (.10) -- 4.6 5.5  
Error degrees of freedom -- 26 26  
CV (%) -- 11.7 11.4  
R2 (%) -- 80 63  
1Sharkey Clay Soil.
2All are released varieties.
3Not planted in 1996.



Table 35. Roundup Ready Maturity Group V Early Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 1997 1998
  bu/A bu/A bu/A   in  
FFR RT557 Elite -- -- 67.3 9/22 21 1
AG5401 Asgrow -- -- 66.2 9/27 25 1
95B41 Pioneer -- -- 65.2 9/22 21 1
AG5602 Asgrow -- 61.8 64.6 9/29 18 1
DP 5644 RR Deltapine -- 66.5 62.6 9/25 26 1
2517RR Willcross -- -- 62.0 9/22 21 1
HBK R5588 Hornbeck -- 62.9 62.0 9/25 21 1
DG531 (E)3 DEKALB -- -- 61.3 9/24 20 1
SF567RR SF Services -- 69.3 59.9 9/25 21 1
FFR RT587 Elite -- -- 59.7 9/30 25 1
HBK R5411 Hornbeck -- 62.5 59.6 9/22 21 1
HBK R5404 Hornbeck -- 57.2 59.4 9/24 22 1
TS 556RR Terra -- -- 58.1 9/26 20 1
TV 5466RR Terral -- 62.4 57.6 9/24 18 1
H5350RR Hartz -- -- 57.6 9/29 20 1
TV 5666RR Terral -- 64.8 57.2 9/26 20 1
FFR RT517 Elite -- -- 55.4 9/22 17 1
H5088RR Hartz -- 56.4 55.0 9/28 24 1
5263RR Delta King -- -- 53.9 9/16 16 1
RVS X08RR (E)3 Terra -- -- 53.7 9/22 26 2
5664RR Delta King -- -- 52.5 9/27 23 1
X9856RR (E)3 NK -- -- 52.3 9/22 18 1
SG567RR Sure Grow -- 56.1 49.3 9/23 27 1
AP543RR Agripro -- 63.5 46.9 9/24 16 1
H5855RR Hartz -- 61.6 42.6 9/17 24 1
H5545RR Hartz -- 52.8 41.7 9/22 25 1
H5057RR Hartz -- -- 41.0 9/27 45 4
AG 5601 Asgrow -- 58.6 40.9 9/23 22 1
H5013RR Hartz -- -- 31.3 9/22 20 1
Overall Mean -- 61.8 55.1  
LSD (.10) -- 5.7 4.7  
Error degrees of freedom -- 44 56  
CV (%) -- 6.7 6.3  
R2 (%) -- 60 91  
1Sharkey Clay Soil.
2Not planted in 1996.
3(E) = Experimental.



Table 36.Roundup Ready Maturity Group V Late Soybeans Planted May 7, 1998, and Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 1997 1998
  bu/A bu/A bu/A   in  
AG 6101 Asgrow -- 66.8 62.6 9/28 29 2
DG858 (E)3 DEKALB -- -- 62.0 9/26 22 1
DP 5960 RR Deltapine -- 66.3 61.6 9/25 28 1
S51-Tl NK -- -- 61.0 9/22 45 4
AG 5801 Asgrow -- 68.4 60.4 9/26 23 1
96B01 Pioneer -- -- 60.2 9/28 26 2
AP 588RR Agripro -- 62.3 58.4 9/27 25 1
HBK R5884 Hornbeck -- 65.5 57.3 9/25 23 1
CX550RR DEKALB -- -- 56.1 9/24 21 1
SG597RR Sure Grow -- 66.2 55.8 9/28 31 3
H6255RR Hartz -- -- 55.7 10/6 26 2
AG 5901 Asgrow -- 64.6 53.4 9/23 27 1
H5889RR Hartz -- 68.2 51.8 9/29 51 5
X9857RR (E)3 NK -- -- 50.5 9/22 25 2
S59-V6 NK -- 72.1 50.4 9/23 22 1
5961RR Delta King -- -- 50.4 9/28 26 1
H5999RR Hartz -- 69.9 50.2 9/24 28 2
SG617RR Sure Grow -- 69.2 50.0 9/28 30 3
DP 6200RR Deltapine -- -- 49.0 9/24 28 1
TV 5866RR Terral -- 65.3 48.0 9/26 22 1
DP 5806 RR Deltapine -- 68.3 45.4 9/24 27 2
95B71 Pioneer -- -- 45.1 9/22 19 1
RVS X024RR (E)3 Terra -- -- 38.5 9/23 23 1
H5181RR Hartz -- -- 35.0 9/23 25 2
0038RR (E)3 UAPX -- -- 34.1 9/22 20 1
RVS X037RR (E)3 Terra -- -- 27.2 9/22 24 1
Overall Mean -- 66.3 51.2  
LSD (.10) -- 4.9 7.0  
Error degrees of freedom -- 30 50  
CV (%) -- 5.4 10.0  
R2 (%) -- 56 83  
1Sharkey Clay Soil.
2Not planted in 1996.
3(E) = Experimental.



Table 37. Roundup Ready Maturity Group V Early Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 1997 1998
  bu/A bu/A bu/A   in  
FFR RT517 Elite -- -- 43.3 9/16 18 1
95B41 Pioneer -- -- 42.6 9/17 20 1
FFR RT557 Elite -- -- 41.9 9/19 20 1
HBK R5588 Hornbeck -- 35.8 39.9 9/19 20 1
DG531 DEKALB -- -- 39.0 9/22 21 1
HBK R5404 Hornbeck -- 41.1 38.8 9/16 18 1
5664RR Delta King -- -- 38.2 9/18 18 1
FFR RT587 Elite -- -- 37.9 9/26 22 1
AG5401 Asgrow -- -- 37.1 9/19 18 1
2517RR Willcross -- -- 36.0 9/17 20 1
H5855RR Hartz -- 44.3 35.5 9/21 22 1
TV 5666RR Terral -- 40.2 35.4 9/20 18 1
AG5602 Asgrow -- 33.9 35.3 9/21 20 1
TV 5466RR Terral -- 38.1 35.1 9/16 18 1
H5545RR Hartz -- 42.7 33.8 9/24 20 1
HBK R5411 Hornbeck -- 41.6 33.7 9/15 17 1
TS 556RR Terra -- -- 33.4 9/16 17 1
DP 5644 RR Deltapine -- 34.8 32.8 9/21 22 1
SG567RR Sure Grow -- 29.8 32.1 9/20 25 2
SF567RR SF Services -- 34.6 32.0 9/20 19 1
H5350RR Hartz -- -- 31.6 9/19 20 1
H5013RR Hartz -- -- 31.3 9/20 21 1
X9856RR (E)3 NK -- -- 30.9 9/18 16 1
AG 5601 Asgrow -- 34.2 30.3 9/18 17 1
H5088RR Hartz -- 33.6 28.4 9/24 22 1
RVS X08RR (E)3 Terra -- -- 28.3 9/24 21 1
H5057RR Hartz -- -- 27.4 9/25 36 2
5263RR Delta King -- -- 26.2 9/17 17 1
AP543RR Agripro -- 38.2 24.7 9/18 18 1
Overall Mean -- 37.7 34.2  
LSD (.10) -- 7.3 7.9  
Error degrees of freedom -- 44 56  
CV (%) -- 14.1 16.8  
R2 (%) -- 47 54  
1Sharkey Clay Soil.
2Not planted in 1996.
3(E) = Experimental.



Table 38. Roundup Ready Maturity Group V Late Soybeans Planted May 7, 1998, and Not Irrigated at the Delta Branch Experiment Station in Stoneville.1
Variety Brand Yield Maturity date Plant height Lodging score
19962 1997 1998
  bu/A bu/A bu/A   in  
X9857RR (E)3 NK -- -- 39.1 9/21 22 1
HBK R5884 Hornbeck -- 34.7 38.5 9/24 22 1
S59-V6 NK -- 36.4 38.1 9/26 22 1
AG 5801 Asgrow -- 41.8 37.9 9/25 20 1
H5999RR Hartz -- 40.7 37.1 9/22 23 1
DP 5960 RR Deltapine -- 32.6 37.0 9/25 28 1
96B01 Pioneer -- -- 36.9 9/25 26 1
TV 5866RR Terral -- 34.2 36.6 9/25 21 1
SG597RR Sure Grow -- 38.9 36.3 9/25 27 1
DP 5806 RR Deltapine -- 35.7 36.3 9/25 27 1
CX550RR DEKALB -- -- 36.1 9/17 19 1
DG858 (E)3 DEKALB -- -- 36.0 9/20 18 1
AP 588RR Agripro -- 30.4 35.7 9/25 24 1
S51-Tl NK -- -- 35.6 9/16 44 3
AG 5901 Asgrow -- 34.6 35.1 9/26 21 1
5961RR Delta King -- -- 34.4 9/30 29 1
AG 6101 Asgrow -- 30.9 34.1 9/27 30 1
DP 6200RR Deltapine -- -- 33.9 9/25 27 1
H5889RR Hartz -- 39.7 33.7 9/27 44 3
H5181RR Hartz -- -- 30.3 9/25 25 1
SG617RR Sure Grow -- 31.3 29.1 9/26 28 2
H6255RR Hartz -- -- 27.9 9/30 25 1
95B71 Pioneer -- -- 27.9 9/21 17 1
0038RR (E)3 UAPX -- -- 27.1 9/21 21 1
RVS X037RR (E)3 Terra -- -- 23.6 9/22 22 1
RVS X024RR (E)3 Terra -- -- 22.0 9/23 20 1
Overall Mean -- 34.9 33.7  
LSD (.10) -- 4.8 4.6  
Error degrees of freedom -- 30 50  
CV (%) -- 9.9 10.0  
R2 (%) -- 67 77  
1Sharkey Clay Soil.
2Not planted in 1996.
3(E) = Experimental.

 

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