大豆新品种豫豆22号的选育及丰产稳产性分析

The Breeding on New Variety Soybean Yu No.22 and the Analysis of High-yield and Stable-yield

针对目前黄淮海夏大豆品种存在的突出缺点，采用有效的复合杂交方法，将两种性状差异悬殊的优良亲本综合起来，经系谱法定向选择，抗逆性鉴定，决选出集高产、稳产、高蛋白于一体的夏大豆新品种豫豆22号。经两年13点次河南省大豆品种区域试验，平均单产2746．5kg／hm2，较ck显著增产；丰产稳产性分析，该品种属高产稳产类型。

In present study, soybean variety of Yellow River, Huaihe River and Haihe River Valleys have many serious shortcomings. Acomposite-crossing way was carried out by using many parents, which had many disparities in genetics and reciprocity in characters.The filial generations werc alternately selected under different adverse environments..The adverse resistance of the stable lines was characterized under different adverse growing conditions. Being reproduced of the better lines, a new variety soybean Yu No. 22 of higt-yield, stable-yield and high-protein was produced. the Results of Henan Province's soybean regional trail during two years for thirteen dot showed average yield was 2746.5 kg/hm2 and more notable increase production than check. According to analysis of high-yield and stable yield, Yu No. 22 belonged to the type of high and stable yield.