Leaf Morphology-by-Row Spacing Study – Dallas, TX 2001 (planted 16 May 2001).


                                                                  Yield (bu/a)                                         Height (in)
 
Cultivar
14-inch Rows
28-inch Rows
14-inch rows
28-inch rows
         
Deltapine DP4750RR
-
10.6
20.5
20.8
MFA 4477
11.8
14.0
19.1
22.6
Hyperformer HY 4540
12.0
16.5
18.1
16.8
Croplan 466RR
11.2
15.1
22.1
25.6
Novartis NK3474
14.7
-
17.2
17.0
Croplan 4792
11.4
15.0
24.3
30.1
Garst 4882
10.0
10.2
24.6
25.4
Mid. Prem. Gen. MPV 457
10.2
10.9
21.1
24.2
Triumph TR4718
13.0
14.3
26.1
28.3
Sure-Grow SG 498RR
13.3
12.9
18.9
20.6
Taylor 488RR
7.4
12.0
20.7
20.7
Deltapine DP4690
5.7
11.0
18.6
22.7
Garst D485
7.9
23.2
17.5
18.5
Garst 4888RR
5.1
- 
18.5
25.0
LSD (0.05)
------------ns------------
-------------- 3.2 ----------- 
Mean
10.6
14.7
20.6
22.7*

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

R8 dap = days after planting when crop was mature. The row spacing and interaction effects on maturity were not significant. Therefore, maturity dates are averaged across row spacing.

Acknowledgements:

We thank the seed companies for supplying the seed, Lipha Tech, Inc. for supplying the Cell-Tech 2000 inoculant, and the Texas Soybean Board for funding the project.

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