论文部分内容阅读
以蛋白质含量较高的D95-753-754、克辐9807-2、黑生101、克辐05-1480为亲本材料,在田间先以产量性状、农艺性状为主要指标优先择优,在室内再以蛋白质含量为指标进行二次择优的选择方法,主要经过三轮杂交、选择和鉴定,逐轮进行蛋白质含量、熟期、百粒重等农艺、产量、品质性状的协同优化,实现了这些性状的同步改良;各轮次育成的品系蛋白质含量不断提高,与主栽品种的产量差距不断缩小,提高了育成的新种质克交11-1615和克交11-1669的育种利用价值。在研究的过程中,坚持不同育种方法获得的中间材料和每一轮次杂交优选出的中间材料的持续利用,聚合了不同来源亲本高蛋白基因;利用基因的加性效应,部分组合实现了超亲遗传。创新了高蛋白育种方法和选择策略。选育出了生育日数115 d(克山)、蛋白质含量46.5%(高于多个亲本)、百粒重19 g大豆新品种质克交11-1615和生育日数105 d(克山)、蛋白质含量44.5%、百粒重20 g的大豆新种质克交11-1669。
Taking D95-753-754, Kefu 9807-2, Heisheng 101 and Kefu 05-1480 with higher protein content as the parent materials, the yield and agronomic traits were the main indexes in the field, Protein content as an index for second choice, mainly through three rounds of hybridization, selection and identification, by the wheel protein content, maturity, hundred weight and other agronomic, yield, quality and performance of the synergistic optimization of these traits The protein content of the lines bred at each round was continuously increased, and the yield gap with the main cultivars kept decreasing. The breeding value of the new germplasm, Kejiao 11-1615 and Kejiao 11-1669, was increased. In the process of research, we insist on the continuous use of the intermediate materials obtained by different breeding methods and the intermediate materials optimized by each round of hybridization, and polymerize the high protein genes from parents of different sources. By using the additive effect of genes, Pro heredity. Innovative high-protein breeding methods and selection strategies. Breeding days were 115 d (Keshan), protein content 46.5% (higher than multiple parents), 100 g of 19 g of new soybean germplasm cross and 11-1615 105 days (Keshan), protein The content of 44.5%, 100 g of 20 g of new germplasm grams cross 11-1669.