大豆长花序短果枝株型性状的利用研究 Ⅰ.长花序短果枝对大豆产量的贡献

UTILIZATION OF SOYBEAN GERMPLASM WITH PLANT-TYPE OF LONG FLORAL AXIS AND SHORT POD-BRANCHⅠ Contribution of long floral axis and short pod-branch to seed yield

长花序和短果枝是构成大豆产量的两个优异株型性状，它们的籽粒产量占单株粒重的２０％以上，长花序和短果枝性状还可以增强大豆品种的适应性和抗逆性。在大豆生产中，采用一些相配套的栽培措施，可以充分发挥这两个性状的作用，提高大豆的生产潜力。

Long floral axis and short pod-branch were two superior characteristics of soybean plant-type for yield improvement. The total contribution of them for seed yield was more than 20%. It was more possible to obtain the germplasm in the determinate podding habit soybeans. The combination of long floral axis and short pod-branch was helpful to the soybean adaptation and tolerance to stress conditions. It was necessary for the variety with the two characteristics to have the coincided cultivation management for exerting its yield potential.