【摘要】 <正> 本文根据我国自然环境、耕作栽培制度复杂和大豆品种资源丰富多采等特点,以影响大豆品种区域适应的主要生态性状为依据,进行了大豆品种生态分类研究。本分类初步概括了原产我国南北各地大豆品种的生育期特点,反映出它们的生态地理分布基本规律和习惯播种期类型等,以有助于对我国大豆品种资源主要生态类型的系统认识,并供异地引种、育种和栽培区划研究的参考。更多还原

【Abstract】 In the present study the main ecological characters (growth period, days from seedling emergence to flowering, pod setting period) which influence the regional adaptation were used as basis for the ecological classification of the Chinese soybean cultivars.The representative cultivars of all the types of different seeding seasons were classified into 12 maturity types and 44 ecological groups, and 80 of the representative cultivars were labeled with latitude of regions of origination as well as their types of seeding season.According to this classification, maturity groups and characteristics of photoperiodic response of the soybean cultivars of different regions from north to south part of China and the difference among the cultivars can be generally understood. Such classification is also vaiuable for understanding the rule of the ecological geographical distribution of the ecological groups; and also useful as guidance for varietal introduction, arrangement of cultivation region, as well as ecological breeding of soybeans.更多还原