一、材料与方法(一) 田间试验方法试验于1986年在沈阳农业大学试验田进行,供试材料为20个叶形不同的品种,其中18个是辽宁、吉林种植的品种,2个是外引种(日本的“十胜长叶”和美国的“Amsoy”) 详见表1. 试验采用完全随机区组设计,三次重复,小区行长3米、行距60厘米、株距15厘米. (二) 室内测定方法测定于8月份大豆结荚期进行,所测项目如下: I. Materials and Methods (I) Field Tests The experiment was conducted in the experimental field of Shenyang Agricultural University in 1986 with 20 different leaf-shaped cultivars, of which 18 were cultivated in Liaoning and Jilin and two were introduced outside (Japan’s “Tensengumi” and “Amsoy” in the United States) are shown in Table 1. The experiment was designed in a completely randomized block design with three replications. The plot length was 3 meters, the row spacing was 60 centimeters and the plant spacing was 15 centimeters. (B) determination of indoor test Determination of soybean pod in August, the test items are as follows: