Abstract:

The study used twenty hybrid soybean varieties which through the initial and first yield testing as test material, in order to study soybean hybrid heterosis. The results show that the hybrid soybean variety have significant advantages in yield, the yield of 19 combinations increased than the high-yield control heinong 38, the range of 2.39-61.33%. Yield-related traits analysis showed that different traits have the different variation degrees. Soybean Hybrid yield advantage mainly come from three pods, four pods, pods number, seed number per plant, yield per plant, number of branches and other production traits.