Analysis on Combining Ability and Heritability of Main Agronomic Characters of Insect-Resistant Cotton Varieties (Lines)
Shi Jialiang
Li Fengrui
Zhang Donglou
Wang Shili
Tian Chunli
Yang Xiufeng
Abstract：With 12 insect-resistant cotton varieties ( lines) as parents,the F1 generation was obtained by 6 ×6 incomplete diallel cross ( NCⅡ) .The combing ability and heritability of their 8 agronomic characters were analyzed .The results showed that single boll weight and plant height had higher broad -sense and narrow-sense heritability , so they should be chosen in earlier generations .The other characters had higher broad -sense heritability but lower narrow -sense heritability , so they should be selected in latter generations .Jiaxing 6 , Zhong 41 and A48 were the parents with better comprehensive characters .The specific combining ability a-nalysis showed that the better combinations were Zhong 41 ×A49, A1 ×A48, GK44 ×S08 and Jiaxing 6 × S08 .
Keywords：Insect-resistant cottonAgronomic charactersCombining abilityHeritability
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 23-25,26 )