High Protein Soybean Performance Under Field Conditions |
| |
| Authors: | B L Ma S Leibovitch H D Voldeng D L Smith |
| |
| Institution: | Department of Plant Science, P.O. Box 4000, Macdonald Campus of McGill University, 21,111 Lakeshore Road, Ste Anne de Bellevue, QC, Canada H9X 3V9 |
| |
| Abstract: | An early maturing soybean Glycine max (L.) Merr.] cultivar has been developed with substantially higher seed protein concentration than previously available cultivars. The objectives of this study were to evaluate the performance of the high protein line under field conditions in Eastern Canada, and to investigate the interrelationships between protein and oil concentrations, seed weight and yield. A field experiment, including the high protein line OT89-16 and its recurrent backcross parent Maple Arrow grown side by side, was conducted at McGill University, during 1990 and 1991. The protein concentration of OT89-16 was 17 % greater than that of Maple Arrow for both years. However, the protein yield of OT89-16 was not significantly increased, the oil content was 19 to 23 % lower, and oil yield per ha was over 30 % lower than those of Maple Arrow. The lower yield of OT89-16 was closely associated with its lighter seeds. Further efforts to improve the high protein line should attempt to maintain the same high protein levels but achieve yield equal to that of the parent line through selection for heavier seeds. |
| |
| Keywords: | Soybean High protein Oil content Seed size |
|
|
