论文部分内容阅读
本研究以４个南疆自育中熟陆地棉品种（系）和在新疆引种推广的５个中棉所系列品种为材料，采用不完全双列杂交设计，对１３个经济性状作了配合力和遗传力分析。结果表明，南疆自育品种（系）单铃重、第一果枝高度主要受基因加性效应控制，中棉所品种的第一果枝节位、２．５％跨长、马克隆值、伸长率主要受加性效应控制，而在株高、果枝数性状上两类亲本主要受非加性效应控制，衣分同时受加性和非加性效应控制。衣分、２．５％跨长、单铃重的广义和狭义遗传力较高，宜在早代选择
In this study, four cultivars (lines) of self-maturing upland cotton in southern Xinjiang and five varieties of cotton cultivars from China introduced and popularized in Xinjiang were used as materials. By using incomplete double-line hybrid design, the combining ability of 13 economic traits And heritability analysis. The results showed that the boll weight and the height of the first fruit branch of self-breeding varieties (lines) in southern Xinjiang were mainly controlled by the additive effect of genes. The first fruit branch node, 2.5% span, micronaire, The length was mainly controlled by the additive effect, while in the plant height and fruit number, the two types of parents were mainly controlled by the non-additive effect, and the lint percentage was controlled by additive and non-additive effects. Clothing points, 2.5% span long, boll weight broad and narrow sense of heritability higher, should be selected in the early generation