摘要
应用灰色系统理论中的关联度方法 ,对 2 0 0 1年参加玉米攻关区试组的 8个玉米新组合的育种数量性状进行综合评价。结果表明 ,与产量关系密切程度的顺序为 :穗粗 >千粒重 >出籽率 >穗长 >行粒数>穗行数 >穗位高 >株高 >生育期。在本生态区内欲获得高产的玉米品种 ,应选择千粒重和出籽率较高的组合 ,并兼顾有较多的行粒数及穗行数。
By means of conjunctional measure of the gray systematic theory, the guantitative characters of 8 new combinations of maize, which were enrolled in the experimental group in 2001, were analyzed synthetically. The result comes out as that the sequence of affinity degree on output is: ear thickness >1000 kernel weight>seed ratio>ear length>row number per ear>ear position height>plant height>growth period. For selecting the maize variety of higher output within this ecological area, we should select the combinations of big kernel, and higher 1000 kernel weight and seed ratio, with higher row number per ear and seed number per row.
出处
《贵州农业科学》
CAS
2002年第6期40-42,共3页
Guizhou Agricultural Sciences
