陆地棉不同铃期和铃位籽棉产量杂种优势的遗传研究  

Genetic Study on Seed Cotton Yield at Different Boll setting Stages and Fruiting Sites in Upland Cotton

作　　者：陈青[1] 朱军[1] 吴吉祥[1] 

机构地区：[1]浙江大学农学系,杭州310029

出　　处：《中国农业科学》2000年第4期97-99,共3页Scientia Agricultura Sinica

基　　金：国家自然科学基金资助项目! ( 3 9670 3 90 )

摘　　要：Twelve parents and their 17 F 1 hybrids of Upland cotton were analyzed by an additive dominance genetic model with genotype by environment interaction and corresponding statistical approaches for seed cotton yield at different blooming stages and fruiting sites in two years. The results showed that the heterosis of final seed cotton yield, from its temporal and spatial composition points of view, was mainly contributed by boll setting stages before August 7 and boll setting positions at inner sites of branches from 6 to 10, respectively. However, the performance of seed cotton yield contributed by outer sites of branches below 10 significantly affected the heterosis of final seed cotton.Twelve parents and their 17 F 1 hybrids of Upland cotton were analyzed by an additive dominance genetic model with genotype by environment interaction and corresponding statistical approaches for seed cotton yield at different blooming stages and fruiting sites in two years. The results showed that the heterosis of final seed cotton yield, from its temporal and spatial composition points of view, was mainly contributed by boll setting stages before August 7 and boll setting positions at inner sites of branches from 6 to 10, respectively. However, the performance of seed cotton yield contributed by outer sites of branches below 10 significantly affected the heterosis of final seed cotton.

关 键 词：陆地棉 铃期 铃位 籽棉产量 杂种优势 遗传 

分 类 号：S562.032[农业科学—作物学]