【摘要】 根据北美 13个熟期组大豆代表品种 4 8份及我国各地地方品种 2 56份在南京春播自然条件结合18小时长光照条件的试验 ,部分品种在石家庄、哈尔滨的春播试验 ,获得以下主要结果 :( 1)将我国大豆品种归属为相应的 0 0 0～ 共 12个熟期组 ,未发现熟期组 品种 ;( 2 )按同一熟期组品种生育前期变异的地理分布 ,0～ 熟期组内各划分为秦岭淮河线以北亚组与秦岭淮河线以南亚组 ,因此将我国大豆品种进一步划分为熟期组 0 0 0、 0 0、 0 1、 0 2 、 1、 2 … 共 12组 16种熟期类型 ;( 3)揭示我国大豆熟期组依品种生态区地理分布特点 ;( 4 )提出我国大豆品种熟期组归属的鉴定方法和各地鉴定的标准品种名录更多还原

【Abstract】 The US maturity groups system has been extensively accepted, but was not used in China due to the complexity of maturity types and growing seasons. To link the Chinese system with the US maturity groups system, forty eight varieties of 13 MGs (Maturity groups) from the US and 256 land races from all of the soybean producing areas in China were tested under the spring planting and extended day length conditions, and some of the materials were also tested in Baoding, Hebei province and Harbin, Heilongjiang province. According to the US checks of the MGs, the Chinese varieties were grouped into 000, 00, 0, Ⅰ, Ⅱ, …, Ⅸ, total 12 groups of maturity, without Group Ⅹ which might not exist in China. Within the groups of 0, Ⅰ, Ⅱ, and Ⅲ, there existed different structure of growth periods. Those from the north of Qinling Mountain Huai River with relatively short period of days to flowering were further classified as 0 1, Ⅰ 1, Ⅱ 1, and Ⅲ 1; those from the south of it with relatively short period of flowering to maturity were further classified as 0 2, Ⅰ 2, Ⅱ 2, and Ⅲ 2. In this way, 12 groups including eight sub groups were classified in China. A set of US and Chinese checks for each of the groups as well as sub groups were nominated and can be used for identification of MG of any material. In addition, the geographic distribution of MGs in China was also presented.更多还原