摘要
为了解各主要农艺性状对花生单株生产力影响的主次关系,利用来源于5个国家的126份花生栽培种资源为试验材料,通过表型相关性分析和灰色关联度分析相结合的方法,探讨了12个农艺性状与单株生产力之间的密切程度。结果表明:单株总果数和单株饱果数对花生单株生产力的影响最大,其次为结果枝数和百仁重;而主茎高、侧枝长、出仁率和公斤果数对其影响较小。单株总果数、单株饱果数、结果枝数与单株生产力的表型、遗传型和环境相关系数大小基本一致,而出仁率与单株生产力之间的环境相关系数为0.185,显著小于表型(0.521)和遗传型(0.650)相关系数;且从单个性状的广义遗传率来看,单株总果数、单株饱果数和结果枝数的广义遗传率均小于50%,百仁重的广义遗传率为88.8%。综上所述,在选育高产花生新品种的过程中,首先应注重大籽品系的选育,其次考虑单株果数和结果枝数多的品系。且通过单株果数和结果枝数性状来选育高产花生新品种时,需考虑环境因素对产量的影响。
To understand the effects of major agronomic traits on the productivity per plant in peanut, the combined methods with phenotypic correlation analysis and grey relation analysis were used to analyze the relationship between 12 agronomic traits and productivity per plant of 126 varieties from 5 countries. The results showed that, pods per plant and sound pods per plant had the largest influence to productivity per plant, No. of pod branches and 100-kernel weight had a second influence to productivity per plant. While plant height, length of subbranches, shelling percentage and pods per kilogram had a little influence to productivity per plant. But phenotypic correlation coefficients, genetic correlation coefficients and environmental correlation coefficients were basically consistent with wdues between pods per plant, sound pods per plant, No. of pod branches and productivity per plant. Environmental correlation coefficients （0.185） was significantly smaller than phenotypic correlation coefficients （0.521）, genetic correlation coefficients （0.650） between 100-kernel weight and productivity per plant. Moreover, from heritability in the broad sense of sing~ trait view, heritability in the broad sense with pods per plant, sound pods less than 50%, yet heritability in the broad sense of 100-kernel weight per plant and No. of pod branches were was 88.8%. Overall, when breeding new variety was prior to choose kernel were weightier. Then we should consider these varieties with higher pods per plant, sound pods per plant and No. of pod branches. Moreover, we should take into account environment factor effect on pods per plant, sound pods per plant and No. of pod branches when breeding new peanut varieties with high yield by these traits.
出处
《中国农学通报》
CSCD
2013年第36期125-130,共6页
Chinese Agricultural Science Bulletin
基金
安徽省农业科学院"新进博士"科研启动项目"花生含油量相关基因的关联分析与有效分子标记研究"
安徽省农业科学院院长青年基金"花生远杂9102染色体片段代换系群体构建及含油量QTL定位"(12B0206)
关键词
花生
单株生产力
农艺性状
表型相关
灰色关联分析
peanut
productivity per plant
agronomic traits
phenotypic correlation analysis
grey relationanalysis
