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Increasing yield is one of the most important goals in crop breeding.Soybean(Glycine max L.Merr.),one of the most economically important leguminous seed crops,provides the majority of plant proteins,and more than a quarter of the world’s food and animal feed(Graham and Vance,2003). The yield of soybean is finally determined by the number of seeds per unit area,which affected by many characters,such as height,branching number,photosynthesis,seed size,seed number.The number of seeds per pod is taken for one of the critical components that related to yield(You et al.,1995),and it has long been considered in soybean production(Takahashi,
Increasing yield is one of the most important goals in crop breeding. Soybean (Glycine max L. Merr.), One of the most economically important leguminous seed crops, provides the majority of plant proteins, and more than a quarter of the world’s food and animal feed (Graham and Vance, 2003). The yield of soybean is the finally determined by the number of seeds per unit area, which affected by many characters, such as height, branching number, photosynthesis, seed size, seed number. The number of seeds per pod is taken for one of the critical components that related to yield (You et al., 1995), and it has long been considered in soybean production (Takahashi,