论文部分内容阅读
白菜型春油菜（ＢｒａｓｓｉｃａＣａｍｐｅｓｔｒｉｓ）两个品种８种栽培密度的产量及其构成因素分布特性分析结果表明，单位面积产量与各枝序粒重和角果数占单株粒重和角果数的比率有密切关系。角粒重较高，较稳定下，单位面积产量随一次分枝粒重比率和角果数比率的下降，或主序粒重比率和角果数比率的上升而提高；角粒重低，且随一次分枝粒重比率和角果数比率的下降，或主序粒重比率和角果数比率的上升而降低．一次分枝粒重比率和角果数比率为５０％－５５％，或主序粒重比率和角果数比率为２５％－３０％，同时每角粒重较高，可获得最高单位的面积产量。
The yield characteristics of eight cultivars of Brassica campestris and the distribution characteristics of its components were analyzed. The results showed that the ratio of yield per unit area to the number of branches and the number of pods in the weight per plant and the number of pods There is a close relationship. With higher and heavier grain weight, the yield per unit area increased with the ratio of primary shoot weight to pectin, or the ratio of main grain weight to pectoral number increased. The grain weight was low and With a decrease in the ratio of the number of branches to the number of pectin, or the ratio of the number of main grains to the number of pectin, the rate of branching decreases. The ratio of primary shoot weight to pectoral number is from 50% to 55%, or the ratio of main grain weight to pectoral number is 25% to 30%, and the higher the grain weight per corner, the highest unit area is obtained Yield.