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本文分析了油菜有效角果数、每角粒数、千粒重、角果皮表面积与产量之间的关系,并对构成产量三因素在不同密度水平、不同结角部位上的变化特点进行了研究。结果表明,不同密度下各结角部位对产量的贡献:主花序随密度提高而递增,一次分枝稳定在50％左右,二次分枝则随密度提高而递减。最适密度每亩12000株水平下,主花序、一次分枝和二次分枝对产量的贡献大体各占30％、50％和20％。主花序和上、中部一次分枝的角果皮表面积与其籽粒重都呈正相关。
In this paper, the relationship between the effective fruit number, the number of grains per corner, the 1000-grain weight, the surface area of the pericarp and the yield of rapeseed were analyzed. And the characteristics of the three factors in the yield density at different density and angle were studied. The results showed that the contribution of each node to yield was different under different densities. The main inflorescence increased with the increase of density. The stability of primary branches was about 50% and the secondary branches decreased with the increasing of density. The optimal density of 12000 plants per acre level, the main inflorescence, primary and secondary branches on the contribution of the yield of roughly 30%, 50% and 20%. The main pericycle and the upper and middle branches of the pericarp leather surface area and its grain weight were positively correlated.