大豆科学2000，Vol.19Issue(4)：320-325,6.
中美半矮秆大豆杂交早期世代农艺性状遗传变异研究
STUDY ON GENETIC VARIATION IN EARLY GENERATIONOF CHINA-AMERICA SEMI-DWARF SOYBEAN CROSSES
摘要
Abstract
Three China-America semi-dwarf soybean crosses were made,and the proge-sis had been used for study on genetic variation in early generation for those crosses.The ob-jective of this study was to provide theoretical bases for semi-dwarf soybean breeding,andto explore the meaning for widening soybean seed resourses.The experimental resultsshowed that:Heterosis of F1 of many agronomic characters is very prevalent.The evident differencesof parents in branches give rise to great variation of progesis in these characters.
Heritability of plant height,nodes on main stem, weight of 100 seeds is comparativelyhigh,and the heritability of branch characters is also very high.
The variation of all the branch characters of progesis is very wide,and the comparative-ly expected genetic advances of these charcters in the F2 are quite great,and this means thatselecting potential on these characters will be fruitaful.关键词
半矮秆/杂交/分枝性状/遗传变异Key words
Semi-dwarf/Cross/Branch-character/Genetic variation分类
农业科技引用本文复制引用
张淑珍,杨庆凯..中美半矮秆大豆杂交早期世代农艺性状遗传变异研究[J].大豆科学,2000,19(4):320-325,6.
