摘要
油菜具有主序优势，主要表现在结角数上，在角粒数、千粒重及品质上也很显著。不同类型其优势强弱不同，白菜型和甘蓝型优势明显，芥菜型几乎不具有优势。在甘蓝型油菜中因品种、密度不同优势差异显著。增加密度可使主序在产量中的比例增加，在５万株／亩时可达７３．０５％．主序具有结角率高、成熟早等优点，通过选育优势强的品种，适当增加密度，合理调整布局。
Rape had the phenomenon of main head superiority,showed chiefly on pod number,also very significant at the seed number,TGW and quality. Different rape types with different strong superiority,B.europe sins and B. napus with obvious superiority,B.Ancea superiority was very small.There was significant variation on B. napus with the different cultivars and densities.MHW/GWP was increase with the density bigger,when density as 5×104/mu that is 73.05%.Main head also showed higher pod ratio and early ageing.Maybe use the main head superiority throw selection and breeding stronger superiority cultivars.Veasonable increase densities and change plant layout.
出处
《西北植物学报》
CAS
CSCD
北大核心
1996年第6期126-131,共6页
Acta Botanica Boreali-Occidentalia Sinica
关键词
油菜
主序优势
利用
Rape,main head superiority, use
