摘要
本文在油葵杂交种的分析比较上运用灰色系统理论—灰色关联度分析法,对油葵的花盘直径、单盘粒重、百粒重、产量等几个主要的经济性状进行综合、定量的考查。在无量纲化后,计算出各杂交种与“理想杂交种”的关联系数和加权关联度,通过各杂交种加权关联度的比较,从而给予各杂交种的全面、综合、定量的客观评价,结果表明此方法与单项产量比较法结果一致,而且简便有效。
In this paper,the grey system theory-a method of grey related degree analysis was utilized to analyse sunflower cross-breeds.The comprehensive and quantitative study and survey to some important economic characters were made diameter of the flower disc,the seeds weight of single disc,the weight of 100-seed and yeild ect.Having calculated out the related coefficient and the weighted related degree between various cross-breedsand the 'ideal cross-breed'.Through comparising the weighted relateddegrees of these cross-breads,then made an all-sided,comprehensive,quantitative and objective evaluation.The result showed above method keep identical with the method of comparising individual yeild.However,the former was simple and efficient.
出处
《中国油料》
CSCD
北大核心
1991年第3期51-55,共5页
关键词
油葵
杂交种
关联度分析
权重系数
Ideal cross-breed
Related coefficient
Related degree
Weignted coefficient
