花生单株产量与主要农艺性状的灰色关联度分析

摘要

Twelve cultivated peanut varieties (Tang05-9814,200703-9-3,Jinong10-26-12-3,Xinyu1,Ji0607-5,Jihua5,Tang6417,200711-31-2,JinongG110,Xinyu2,Ji50112,Jihua4) were selected to study the relationship between yield and eleven main agronomic traits (main stem height (MH),total branch number (TB),lateral branch length (LBL),full-pod number (FP),fruit branch number (FB),pods per plant (PP),yield per plant (YP),100-pod weight (PW),100-kernel weight (KW),peanut kernel yield (PKY),pod number per kg (PN),kernel number per kg (KN)) of peanut by using grey relational grade method.It was showed that the grey relational grade result between the grain yield and the eleven agronomic characters was MH (0.657),LBL(0.633),TB(0.652),FB(0.665),FP(0.693),PP(0.693),PW(0.675),KW(0.715),PN(0.705),KN (0.708),PKY (0.688).It can be concluded that 100-kernel weight,kernel number per kg,pod number per kg,full-pod number,and pod per plant were relatively more important than main stem height,lateral branch length,total branch number,fruit branch number,100-pod weight,peanut kernel yield in peanut breeding process.%利用灰色关联度分析法分析12个花生品种中11个主要农艺性状与单株产量之间的关联度.分析结果显示11个主要农艺性状与单株产量的关联度分别为主茎高(0.657),总分枝数(0.633),侧枝长(0.652),饱果数(0.665),结果枝数(0.693),单株结果数(0.693),百果重(0.675),百仁重(0.715),千克果数(0.705),千克仁数(0.708),出油率(0.688).表明在花生育种过程中百仁重、千克仁数、千克果数、饱果数和单株结果数与单株产量的关联度比主茎高、侧枝长、总分枝数、结果枝数、百果重和出油率与单株产量的关联度要高.