Table 2A. Results of the 1994 Mississippi Soybean Variety Trials on a Tunica
silty clay soil in Coahoma County (Clarksdale, location 2)
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Maturity Group V --Yield (bu/a)-- Avg.#* Live*
Variety Brand 3-Yr 2-Yr 1994 emerged Plants Matur. Plnt Lodg
avg. avg. (40in./rw) (%) date Ht. Score
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**Released varieties**
RVSL 90-94 Riverside --- 50.0 57.6 24.3 100.0 9/30 25 1
3576 Dyna-Gro --- 43.5 57.0 22.7 86.0 9/30 25 1
H5545 Hartz --- 50.0 54.2 24.0 100.0 9/22 24 1
A5979 Asgrow --- 45.9 54.0 20.0 88.7 9/26 26 1
RVSL 77 Riverside --- 42.3 53.8 17.7 82.7 9/30 29 1
9592 Pioneer --- 47.1 52.9 22.3 80.5 9/30 31 1
R Robin-5 Riverside --- --- 51.6 16.3 60.7 9/26 24 1
HY 574 HyPerformer --- 50.8 51.6 26.7 100.0 9/30 31 1
55 Buckshot 47.3 42.3 50.8 21.7 58.9 9/26 28 1
9593 Pioneer --- 45.3 50.5 22.3 89.0 9/30 32 1
S57-11 Northrup King --- --- 49.6 21.7 93.7 9/30 24 1
H5454 Hartz --- --- 49.3 24.3 89.3 9/22 24 1
415 Deltapine 47.5 41.8 48.4 19.7 84.4 9/18 24 1
S59-60 Northrup King 48.6 43.8 48.3 21.7 85.2 9/30 28 1
Rhodes Public 48.4 45.5 48.1 23.3 94.3 9/30 28 1
5452 Terra-Vig 48.3 44.4 48.0 23.0 98.7 9/22 29 1
HSC 591 HyPerformer 46.4 45.0 48.0 23.0 82.9 10/03 32 1
507 Buckshot 45.8 39.2 47.7 18.3 78.4 9/30 27 1
H5218 Hartz --- --- 46.7 21.0 98.1 9/26 26 1
105 Deltapine 48.1 41.4 46.2 23.0 82.7 9/22 30 1
H5088 Hartz 48.9 43.8 45.7 21.3 100.0 9/30 26 1
5693 Terra-Vig 44.5 39.7 45.6 18.7 67.1 9/30 24 1
Stone Capehart --- 40.1 45.1 19.3 85.3 9/30 27 1
9584 Pioneer --- 43.1 44.9 22.7 77.5 9/18 26 1
HBK 54 Hornbeck --- --- 44.8 21.0 78.4 10/03 24 1
Hartz 5164 Hartz 46.0 40.6 44.6 22.7 76.5 9/30 26 1
H5810 Hartz 46.2 44.0 44.2 18.3 94.4 9/30 27 1
H5350 Hartz 49.4 43.1 44.0 17.0 98.2 9/26 25 1
H5566 Hartz 45.4 40.0 43.6 22.0 67.7 9/26 24 1
A5843 Asgrow --- 34.9 43.4 22.3 66.9 9/30 22 1
TN5-92 Public --- --- 43.2 16.3 73.7 9/18 28 1
DK 5850 Delta King --- 39.6 42.7 16.0 74.1 9/26 24 1
DK 5475 Delta King --- --- 42.6 17.0 67.9 9/10 23 1
DP 3589 Deltapine 49.0 43.6 42.1 20.7 77.5 9/30 34 1
HBK 58 Hornbeck --- --- 41.9 21.7 77.3 9/30 24 1
A5885 Asgrow --- 35.0 40.9 20.3 66.5 9/10 24 1
EK58 Buckshot --- 33.8 40.8 21.7 77.1 9/30 24 1
5555 Terra-Vig --- 36.0 40.7 11.0 66.3 9/26 28 1
Hutcheson Public 45.9 37.7 38.9 22.0 64.3 9/26 22 1
FFR 583 AgraTech --- --- 37.6 12.3 47.5 9/30 26 1
Holliday Public 43.5 34.8 37.4 19.7 81.4 9/10 21 1
9551 Pioneer --- --- 37.1 21.7 69.5 9/10 23 1
9501 Pioneer --- --- 36.8 23.3 88.9 9/10 30 1
A5560 Asgrow --- 31.4 32.9 19.0 58.9 9/10 25 1
AT 55 Agra Tech 42.1 34.7 32.7 19.7 78.3 9/10 21 1
577 Riverside --- 35.5 32.3 18.7 62.4 9/10 23 1
Clifford Public --- 33.5 32.1 15.0 84.9 9/10 20 1
**Experimental lines**
DPX3561 Deltapine --- --- 56.5 22.0 73.8 9/18 30 1
DPX3588 Deltapine --- --- 55.3 24.7 82.5 9/30 37 1
R90-515 Public --- --- 54.1 24.0 100.0 9/30 28 1
HX510151 Hartz --- --- 48.0 17.0 77.7 9/30 31 2
HB4-X563 HyPerformer --- --- 46.0 22.0 74.2 9/26 27 1
DPX3570 Deltapine --- --- 45.4 19.0 94.4 9/30 28 1
EX 454 Dekalb --- --- 45.2 17.7 100.0 9/30 22 1
HB4-X524 HyPerformer --- --- 43.7 19.0 64.8 9/10 26 1
MD87-5389 Public --- --- 42.7 25.3 100.0 9/26 25 1
X9459 Northrup King --- --- 42.0 17.3 74.8 9/22 24 1
R88-638 Public --- --- 38.4 16.7 74.0 9/18 22 1
TN88-87 Public --- --- 37.1 21.0 78.0 9/10 22 1
HB4-X521 HyPerformer --- --- 24.5 16.0 55.0 9/10 20 1
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Overall Mean . . . . . . 46.7 41.4 45.0
LSD @ .10. . . . . . . . 4.2 5.6 8.1
Error Degrees of Freedom 102 144 120
CV (%) . . . . . . . . . 11.4 14.1 13.3
R2 (%) . . . . . . . . . 85 77 76
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Early maturing group check matured on 9/10.
* Ratings made by B. Keeling on 5/26/94, counted live and dead plants per
meter. Stand ratings were made after plants were noted dying in the field.
Phytophthora was isolated from plants in the field with race 10 being the
primary isolate identified. Plant samples were collected at the time stand
counts were made. Simple linear correlation for yield and live plants is
r = 0.48, P = 0.0001.