通过多年的系统试验,证明对大豆杂交早期世代的材料,用混合选择法针对成熟期、株高、结荚习性,以及种粒大小等性状进行定向的选择,效果并不次于系谱选择法,但却简便易行。大豆杂交材料经过数代的定向混合选择,便形成为能适应当地条件与要求的优良生态类型。在这个基础上,再用个体选择法进行选择,能较有保证地选育出高产优质抗性强的优良品系。 Through years of systematic experiments, it has been proved that the selection of materials for the early generation of soybean crosses with maturity, plant height, pod habit and grain size by hybrid selection is not inferior to that of pedigree selection. But it is simple and easy. After several generations of oriented hybrid selection of soybean hybrid material, it will be formed to adapt to the local conditions and requirements of good ecological type. On this basis, the individual selection method can be used to select superior strains with high yield, high quality and strong resistance.