利用四个大豆杂交组合后代材料,在哈尔滨、绥化、红兴隆农场局科研所等三个不同生态条件试验点,经过三年(1974—1976)试验,各点按当地育种目标进行定向选择,决选出12个优良品系。1977—1978年两年此等品系在上述三个点以及安达农业试验站,以相同方法进行鉴定试验以便分析在不同生态条件下对大豆杂交后代选择的效应。结果表明,各点决选的品系各种农艺性状有明显差异。在哈尔滨东北农学院决选的品系,在株高、主茎节数、分枝数和繁茂性方面均高于红兴隆农场局科研所及绥化农科所决选的后代(方差分析F值极显著)。在开花期、成熟期方面,各品系差异不显著,但红兴隆决选的品系开花期、成熟期均早于绥化及东农决选的材料。在百粒重大小方面,各入选品系间差异虽较大,但各点间的差异没有规律性,这与各杂交组合亲本百粒重大小有关。从总的表现看,由于不同生态条件下的自然选择及人工定向选择作用的结果,各点育成了不同生态类型大豆品种。此研究对确定各地育种目标及选用生产品种类型提供理论依据。 Four crossbred soybean combinations were used in three different ecological conditions, such as Harbin, Suihua and Hongxinglong Farm Bureau Scientific Research Institute. After three years (1974-1976), the targets were selected according to the local breeding targets Selected 12 good strains. For the two years 1977-1978, these lines were tested in the same manner at the above three points and the Anda Agricultural Station in order to analyze the effect on the selection of progeny of soybean crossbred under different ecological conditions. The results showed that there were significant differences in agronomic traits among the selected lines. The strains selected by Northeast Agricultural College in Harbin were all higher than those selected by Hongxinglong Farm Bureau Scientific Research Institute and Suihua Agricultural Science Institute in terms of plant height, number of main stems, branches and luxuriance (ANOVA F value pole Significant). There was no significant difference in the flowering and maturity stages between the two lines, but the flowering and maturing stages of Hongxinglong were all earlier than the materials selected by Suihua and Dongnong. In the 100-grain size, the differences among the selected lines were large, but there were no regularities in the differences among the points, which was related to the size of the 100-grain parent in each crosses. From the overall performance, due to the different ecological conditions under the natural selection and artificial selection results, each point into a different ecological types of soybean varieties. This study provides the theoretical basis for determining the breeding objectives and the types of production varieties.