不同生境下花生农艺产量性状的因子分析

Factor Analysis on Peanut Agronomic Yield Characters under Different Environment

分别对春植和秋植的27个花生品种的12项农艺产量性状进行因子分析,结果表明:不同种植季节下影响花生农艺产量性状累积贡献率大于85%的前5个主因子中,构成影响春花生产量的第一主因子是结果数,第二主因子是百果重和百仁重,第三主因子是饱果率,第四主因子是植株生物产量,第五主因子是植株分枝数;构成影响秋花生产量的第一主因子是百果重和百仁重,第二主因子是植株生长高度,第三主因子是植株分枝数,第四、五主因子分别是单仁果数与双仁果数。

Factor analysis was applied to study yield characters traits of 30 peanut sown in spring and autumn. The results showed that the cumulative contribution made by the main factors affecting yield characters were above 85 % in both sowing seasons. Under the spring enviroment, the first main factor was No. of pods per plant, the second main factor was pod and seed weight, the third main factor was rate of full pod, the fourth main factor was biological yield, the fiveth main factor was No. of branches; Under the autumn enviroment, the first main main factor was plant height and branch length, the third and fiveth main factor was No. of one-seed pods and No factor was pod and seed weight, the second main factor was No. of branches, the fourth of two-seed pods respectively