6个籼型两系不育系的主要农艺性状配合力分析
Combining Ability's Analysis of Main Agronomic Traits for Six Two-line indica Sterile Lines
吴爽 1李晓兵 2杜士云 1江建华 1王辉 1王德正1
作者信息
- 1. 安徽省农业科学院水稻研究所,安徽合肥 230031
- 2. 安徽省枞阳县横埠镇农业技术推广站,安徽枞阳 246701
- 折叠
摘要
[目的]通过对6个籼型两系不育系的配合力及遗传率分析,探讨其育种利用情况.[方法]以6个籼型不育系与6个恢复系为材料,采用不完全双列杂交(NCⅡ)设计,配制36个F1,对8个农艺性状进行配合力及遗传率分析.[结果]不育系的各性状一般配合力方差均达显著或极显著水平,这6个不育系对所配组合的株高、单株谷重等8个性状的影响均有明显差异;WA918S是一个较理想的不育系,新二S可利用其一般配合力,广茉S、1892S可利用特殊配合力,从而选育出强优势组合.[结论]该研究为合理利用这些不育系提供理论支持.
Abstract
[Objective] To discuss the breeding value of 6 two-line indica sterile lines through analyzing combining ability and heritability.[Method] 36 F1,originated from 6 sterile lines and 6 restorer lines with incomplete diallel design (NCⅡ), were used to analyze the combining ability and heritability of 8 agronomic traits.[Result]There were significant difference among the 6 sterile lines in all traits because general combining ability(GCA) variance reached significant difference at 5% or 1% level.WA918S was an ideal sterile line to breed high-yield combinations.On the other hand, utilization of higher GCA such as Xiner S or higher special combining ability(SCA) as Guangmo S and 1892S could also obtain high-yield combinations.[Conclusion] The results provide theoretical support effectively for utilizing these sterile lines.
关键词
水稻/两系不育系/配合力/遗传率Key words
Rice/Two-line sterile line/Combining ability/Heritability引用本文复制引用
基金项目
安徽省农业科学院学科建设项目(15A0106)
杂交水稻国家重点实验室开放课题(2015KF02)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据