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大豆品种８９１２、８７１６、３０９３５１、２１９２０１和鲁豆４号的倒１叶和倒３叶的光合速率在初花期达到高峰，尔后下降。去叶处理的去叶节的有效荚数、总荚数和粒重均低于不去叶节。各去叶处理中，去２／３叶的去叶节和不去叶节有效荚数、总荚数和粒重最低，去１／２叶次之，去１／３叶第三，去分枝叶最高，但都低于对照。去除一部分秕荚和后期荚，单株粒重有所增加，去除分枝荚明显增加主茎粒重，但降低大豆单株粒重。
The photosynthetic rate of the first and the third leaves of the soybean varieties 8912, 8716, 309351, 219201 and Lu Dou 4 reached the peak at the first flowering stage and then decreased. The effective pod number, total pod number and grain weight of the defoliated leaves treated with defoliation were all lower than those without defoliation. Each leaf treatment, to 2/3 leaves to the leaf section and non-leaf section effective pods, the total pods and grain weight minimum, to 1/2 leaves followed by 1/3 leaves third, to points Foliage highest, but lower than the control. The removal of some pods and later pods increased the grain weight per plant, and the removal of branching pods significantly increased the grain weight of main stems, but reduced the grain weight per plant.