摘要
为了明确大豆空间诱变早期世代农艺性状选择的依据,提高空间诱变育种早期世代选择效果,对6个大豆品种经过航天搭载后的SP2代变异率和SP4代选择效果进行了分析,结果表明遗传力高的SP2代的单株荚数和单株粒数2个农艺性状的变异率与SP4代入选单株数相关性达到极显著水平;SP2代遗传力较高的底荚高度和节间长度的变异率与SP4代入选单株相关性达到显著水平,SP2代遗传力不高的植株高度和主茎节数变异率与SP4代入选单株相关不显著;SP2代对单株荚数、单株粒数、底荚高度、节间长度进行选择有效,而对植株高度和主茎节数选择效果不明显。
In order to definite the selection basis of agronomic traits for early generation and improve the selection effect in soybean space-mutation breeding. We analyzed the SP2 generation variation rate and the SP4 generation selection effects of six soybean varieties after space flight carrying. The results showed that the relationship between variation rate of pod and grain number per plant with high heritability of SP2 generation and the selected plant number of SP4 generation was extremely significant. While the relationship between variation rate of bottom pods height and internode length of SP2 generation and selected plant number of SP4 generation was significant. And the relationship among variation rate of plant height and pitch number of main stem of SP2 generation and selected plant number of SP4 generation was not significant. Therfore,the selection of SP2 generation to pod number,grain number, bottom pods height,and internode length was effective, while the plant height and pitch number of main stem was not obvious.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2014年第1期192-195,共4页
Journal of Plant Genetic Resources
基金
种子基金(2010-03-02)
国家科技支撑项目(2011BAD35B06-1-5)
国家科技支撑计划(2011DFR30840)
国家大豆现代产业技术体系建设(CARS-04-CES05)
关键词
空间诱变
变异率
选择
相关分析
space-mutation
variation rate
choice
correlation analysis
