中国大豆品种生育期组的划分

根据全国大豆品种生态试验1980—1982年在28个试验点96个栽培品种所得生育期结果的分析,可以看出大豆在不同生育阶段的日数表现上,因受大豆品种的生育特性和各地不同试点光照和温度的影响呈现很大的差异,其生育日数的长短呈现连续性的变异。本文依据大豆品种在不同地区的播种期,成熟期二个时期的资料,进行中国大豆品种生育期

Classification of the Chinese Soybean Cultivars into Maturity Groups

96 Chinese soybean cultivars were sown at 28 localities in the years 1980--1982to study the relative length of their growth periods. The results indicated that owingthe inherent ecological characteristics of the different cultivars, as well as to the lightand temperature conditions of the different localities, the growth periods of thesecultivars were quite different from each other, ranging from the shortest to the longest,in a continuous series of variation. Based on the sowing dates and the dates of maturity of the different cultivarsgrown at different localities, a classification system is suggested to classify the Chinesesoybean cultivars into 12 maturity groups, C_1 to C_(12), where C_1 represent the earliestand C_(12) the latest types. It is hoped that this system might be helpful to researches and the production ofsoybeans in China.