Location: Soybean and Nitrogen Fixation Research
2012 Annual Report
We continued seed processing and cleaning for further quality analysis. Based on the results and the Uniform Test (UT) and Quality Test (QT) testing data, we further evaluated breeding lines and selected superior lines for further tests and ultimately release of high-protein and/or low-phytate varieties and/or germplasm lines. The F1 seeds and 10 F2 populations were grown in the greenhouse to advance the generation. Analysis of protein and other quality traits were performed with different materials: QT entries, Advanced Yield Trials (AYT) entries, 330 Plant Introductions (PI) lines, protein population, etc. Two high-protein lines were recommended to the regional Quality Traits Test and the Uniform Preliminary Test. A high-yield, high-quality (36.6-38.7% protein and 17.4-19.8% oil at 13% moisture) and large-seed conventional line (SD04CV-611) was approved for seed increase with intention of release. About 100 more DNA (SSR) markers were screened with the recombinant inbred line (RIL) population derived from the high-protein line SD00-1501. Further evaluation and QTL analysis will be performed for protein, oil and yield with another RIL population with which a primary analysis has been done.