Location: Tropical Crops and Germplasm Research
2012 Annual Report
The first generation (F1) of seeds from cross pollinations was grown for seed increase under lights. The cross pollinations were made with the following breeding objectives in mind: incorporate new genetic diversity from exotic Asian soybean germplasm into adapted commercial varieties, increase yield, improve seed composition and drought tolerance, and adaptation to the soyfoods market. We also produced more than 50 distinct F1 hybrid combinations to test the hypothesis that F2 heterosis for yield can be used to predict which exotic breeding stocks hold the greatest potential to increase in applied breeding programs. In addition to these F1 materials, inbred breeding populations (F2 plants) were advanced an additional generation in unlighted areas using the single seed descent breeding method, as a part of the process of developing true breeding progeny. Some of these true breeding progeny, after selection and testing, will become important new varieties and germplasm for the North American breeding programs and breeding objectives above. Lastly, pure line materials with cultivar potential were grown to increase seeds so that they could be yield tested in multiple environments during the summer season.