【摘要】 采用灰色系统理论关联度法对贵州大学油料所的14份双低油菜种质资源主要经济性状进行灰色关联度分析。结果表明,不同的双低油菜材料同一经济性状与产量的关联度不同;同一材料内的不同经济性状与产量的关联度也不同。其关联度顺序为:每角粒数(γ=0.709 8)>千粒重(γ=0.684 1)>角果长(γ=0.647 7)>株高(γ=0.645 7)>单株角果数(γ=0.641 9)>二次分枝数(γ=0.637 0)>分枝高度(γ=0.636 7)>一次分枝数(γ=0.623 9)。因而,在双低油菜的选育过程中,应加强对每角粒数、千粒重和角果长的选择,同时考虑株高适度及单株角果数。更多还原

【Abstract】 By using the way of grey correlation degree the main economic characters of 14 double-low rape were analysed.The results showed that there was different correlation degree between different economic characters and yields in the same combinations.The correlation degree order was seeds/pod(γ=0.7098)>1000-GW(γ=0.6841)>length of pod(γ=0.6477)>plant height(γ=0.6457)>pods/plant(γ=0.6419)>available primary branthes(γ=0.6370)>position of branch(γ=0.6367)>available secondary branches(γ=0.6239).Selecting the combination of double-low rape,more seeds/pod,heavier 1000-GW,longer length of pod,the proper plant height and more pods/plant were noticed.更多还原