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一、试验材料与方法本试验应用黑农26大豆品种,播前于黑龙江省技术物理研究所照射干种子,照射剂量为2千伦琴、4千伦琴、6千伦琴和对照共四个处理。对照品种为黑农26。小区面积为10.5m~2,3行区,行长5米,行宽0.7米。小区设计随机取组法,五次重复,其中一个重复做为采样,进行叶面积、干物重等项测定。生育期进行调查,每个处理调查40株,五月三日播种,保苗株数23—25株/m~2。每个处理分别进行测产、变量分析和差异显著性测定。二、结果与分析 1.各生育时期生长速度
First, the test materials and methods The experiment using Heinong 26 soybean varieties, sowing in Heilongjiang Institute of Technical Physics exposure to dry seeds, irradiation dose of 2 thousand Roentgen, 4 thousand Roentgen, 6 thousand Roentgen and a total of four treatment. The control variety is Heinong 26. District area of 10.5m ~ 2,3 line area, the governor of 5 meters, 0.7 meters wide. Community design random group method, five replicates, one of the repeated as a sample, the leaf area, dry weight determination. Growth stages of the survey, each survey 40, May 3 sowing, Paul number of seedlings 23-25 plants / m ~ 2. Each treatment was measured yield, variable analysis and determination of differences in significance. Second, the results and analysis 1. The growth rate of each growth period