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油菜角果纵向伸长快于横向增宽,花后15天角果长度已停止伸长,而角宽在花后20天才基本定型,角果的物质积累曲线和Logistic生长方程高度拟合.宁油7号角果的长度和表皮面积显著大于秦油2号,物质积累强度和最大积累量也相应高于秦油2号,从而使果壳积累、贮藏并能输送给籽粒的干物质多于秦油2号,这是宁油7号单角籽粒产量较高、源库关系较为协调的根本原因.宁油7号高产的重要途径是合理密植,扩源增库,进一步提高单位面积的角果数;秦油2号高产的主要途径是提高果皮的光合生产能力,增强源的供应,协调源库之间的关系.
The length of rape cotyledon stretched faster than that of lateral width, and the length of corydalis had stopped elongating 15 days after anthesis, while the angle width was basically set 20 days after anthesis. The material accumulation curve of corydalis and the logistic growth equation were highly fitted. The length and epidermal area of oil horn # 7 were significantly larger than that of Qinyou 2, and the accumulation intensity and the maximum accumulation of oil were also higher than that of Qinyou 2, so that the dry matter accumulated, stored and transported to kernels was higher than that of Qin Oil No.2, which is the root cause of the higher single grain yield of Ningyou 7 and the more coordinated relationship between source and sink.Ningyou7 is an important way to increase yield, which is reasonably close planting, Number; Qin oil 2, the main way to improve the yield is to improve the pericarp photosynthetic production capacity, enhance the supply of sources, to coordinate the relationship between sources and sinks.