甜椒主要农艺性状与产量相关及通径分析

通过对甜椒主要农艺性状与产量之间相关及通径分析,估测了甜椒12个主要农艺性状对总产量形成影响的相对重要性。其中单株结果数、单果重与总产量的关系最为密切,其相关系数和通径系数分别为rx2y=0.7311,rx3y=0.7244,px2y=0.9045,px3y=0.5643,均达到显著水平;早期产量通过单株结果数对总产量的间接作用也很大,间接通径系数为0.6433。因此,在甜椒丰产育种中,主要根据单株结果数的多少进行选择,同时也要适当考虑单果重。 

Correlation and Path Analysis of the Main Agronomic Traits of Sweet Pepper

Correlation and path analyses of main agronomic traits of sweet pepper were conducted.Relative importance of 12 main agronomic traits to the total yield formation was estimated. Among them, number of fruit per plant, single fruit weight were closest to the relation of total yield. Their correlation coefficient and path coefficient were rx2y = 0.7311,rx3y = 0.7244,px2y = 0.9045, px3y = 0.5643 respectively,both reached significant level. The first ten days' yield contributed to the total yield mostly through the number of fruit per plant.The indirect path coefficient was 0.6433.So in the breeding and selection of sweet pepper,both the number of fruit per plant and single fruit weight should be considered.