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大白菜不同分枝级别产种量、有效荚数、单枝荚数在单株上的比例是2级分枝>1级分枝>3级分枝>主茎;单株产种量与分枝数、单株荚数呈极显著正相关;大白菜种子产量构成因素中单株分枝数是主要因素。大白菜小株冬前定植露地越冬制种,以增加1级分枝和2级分枝为主攻方向,可增产30%,千粒重增加10%。
Chinese cabbage at different branching levels of seed production, the effective pods, the number of single pods in the single branch is the proportion of 2 branches> 1 branch> 3 branches> main stem; The number of branches and the number of pods per plant were significantly and positively correlated. The number of branches per plant in the components of the seed yield of cabbage was the main factor. Small Chinese cabbage plantation winter before winter planting, in order to increase the first branch and two branches for the main direction, can increase 30%, 1000 grain weight increase of 10%.