Northern grown soybeans tend to be challenged in both yield and seed protein concentration. It is our contention that nitrogen uptake (from both soil N and fixed N), storage, and mobilization to seed during seed filling is a primary limiting factor of both yield and protein content. In addition, seed protein is inversely related with oil concentration but at a 2:1 ratio (protein: oil). Therefore, lower protein seed tends to be low in the sum of protein and oil. This, in turn, is the primary handicap of lower protein seed. Based on examination of eight years of USSEC soybean quality sampling across the US; it appears that of the environmental factors that affect seed protein deposition,...
Increased understanding of the effects of drought and waterlogging on seed protein, oil, and carbohydrates, including soluble sugars and fibers.
The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.