新疆农业科学2017，Vol.54Issue(1)：1-9,9.DOI:10.6048/j.issn.1001-4330.2017.01.001
北疆棉花三系主要选育指标的遗传效应分析
Genetic Effect Analysis of Main Breeding Targets of Three Lines Hybrids Cotton in Northern Xinjiang
摘要
Abstract
[Objective] This study aims to understand the genetic rules of main selection index of three lines hybrids of Xinjiang cotton with genetic effect analysis to screen high heterosis hybrid combination.[Method] Forty-two crosses were made between 7 sterile lines and 6 restorer lines by using 7 × 6NC Ⅱ cross design.The yield,lint percentage and fiber quality of F1 generation were used to carry out statistical analysis of genetic variance and combining ability.[Result] Yield was affected by both dominant and additive effects,and may be affected by overdominance effects.Lint percentage,length,micronaire and strength were predominantly affected by additive effect and party by partial dominance effect.In the sterile lines,3-248A showed the highest general combining ability,2-20A and 6-89A showed higher general combining ability,but other restorer lines showed low or negative general combing ability.In the restorer lines,12-278R showed the highest general combining ability,8-420R and 9-186R showed higher general combining ability,but other restorer lines showed low or negative general combing ability.In cross combinations,2 × 9 showed the highest specific combining ability,6 × 12,4 × 9,3 × 8 and 6 × 8 showed higher specific combining ability,exhibiting 23.33％,16.67％,15％,10.83％ and 5％ higher yield than that of the control,respectively,but other combinations showed low or negative specific combining ability.[Conclusion] Filter out the high advantages of hybrid 2 × 9,exhibiting 23.33％ higher yield than that of control respectively,lint percentage and fiber quality of F1 generation made between 7 sterile lines and 6 restorer lines with 7 ×6NC Ⅱ cross design.关键词
三系杂交棉/NCⅡ遗传设计/遗传效应Key words
three lines hybrids cotton/NC Ⅱ genetic cross design/genetic effect analysis分类
农业科技引用本文复制引用
代勇强,张新宇,孙杰..北疆棉花三系主要选育指标的遗传效应分析[J].新疆农业科学,2017,54(1):1-9,9.基金项目
National science and technology support plans," New varieties of cotton cultivation and propagation" (2011BAD35B05) and Animal and plant breeding special project of Shehezi University (gxs2012-yz-04)国家科技支撑计划“棉花新品种培育与扩繁”(2011BAD35B05) （2011BAD35B05）
石河子大学动植物育种专项(gxs2012-yz-04) （gxs2012-yz-04）
