复播花生产量相关性状的主成分及通径分析

[目的]研究花生产量相关性状统计数据的内在关联性。[方法]以山西省南部复播区10个花生品种为研究对象,通过主成分、相关和通径分析方法,阐明花生各农艺性状与产量的关联差异。[结果]6个农艺性状统计数据在3种分析方法中表现出相似的变化趋势;花生单株果数对产量的影响最大,其次分别为百果重、生育期、结果分枝和总分枝数,主茎高与产量呈负相关。[结论]在区域花生育种实践中,应注重对单株果数性状的选择,同时也要兼顾其他性状的筛选。

Principal Component and Path Analysis in Correlated Traits with Yield of Stubble-field Peanut

Objective] In order to explore the inner associated rules of correlated traits with yield statistical data in peanut.[Method] Ten breeds were surveyed in southern Shanxi , which was for comparing correlation variance in agronomic traits and yield through principal compo-nent, correlation and path analysis methods.[Result] The result showed there were similar change tendency in six agronomic traits’ satistical da-ta with three analysis methods.Single plant fruits most significantly affected peanut yield, then came 100-pod weight, growth duration, branch-ing fruits and branching amount.Main stem height showed negative correlation with peanut yield.[Conclusion] In regional peanut breeding, we should not only pay attention to the choice of fruit number per plant , but also take into account every agronomic trait and choose coordinated mul-tiple characteristics.