贵州花生产量与农艺性状灰色关联度分析

Grey Correlation Analysis on Yield and Agronomic Traits ofPeanut in Guizhou

【目的】对贵州地区花生种质资源的主要农艺性状进行综合评价,探究其农艺性状对产量的影响。【方法】以18份贵州花生种质为材料,记录并测定其10个主要农艺性状指标,应用灰色关联度分析法进行综合评价。【结果】各农艺性状与产量的灰色关联度顺序为成苗率>单株生产力>分枝数>侧枝长>百仁重>百果仁重>结果枝数>百果重>主茎高>结果数。【结论】在育种栽培过程中,应注重对成苗率高、单株生产力强、分枝数多的性状选择,使花生产量有较大程度的提升。

【Objective】The main agronomic traits of peanut germplasm resources in Guizhou is comprehensively evaluated to explore the effects of agronomic traits on yield of peanut.【Method】Ten main agronomic traits of 18 peanut germplasm materials are recorded,measured,and evaluated comprehensively by grey correlation analysis method.【Result】The grey correlation between agronomic traits and yield of peanut follows seedling rate>productivity per plant>branch number>lateral branch length>100-seed weight>weight of seeds in 100 pods>fruiting branch number>100-pod weight>main stem height>fruit number.【Conclusion】In the process of breeding and cultivation of peanut,it should be paid attention to the selection of traits such as high seedling rate,strong productivity per plant,and more branch number,so as to improve the yield of peanut to a great extent.