浙江省大豆品种生态型及生态区划

浙江省气候温暖，雨量充沛，耕作制度复杂，春，夏，秋大豆生态型都有种植。春大豆生育期短，感光性弱，均为有限结英习性，籽粒以中小粒为主；夏大豆生育期长，感光性较弱至较强，有限结英习性品种约占一半，籽粒以大粒为主，秋大豆生育期短，营养生育期更短，感光性强，以亚有限和无限结英习性品种为主，籽粒以大粒为主。春，夏，秋大豆分布主要决定于不同地区的气候条件和耕作制度。据此，可将浙江省大豆生产区划分为：浙北春，夏

ECOTYPES AND ECOLOGICAL REGIONALIZATION OF SOYBEAN VARIETIES IN ZHEJIANG PROVINCE

Zhenjians province lies in the zone with mild climate and plentful raintall as well as manifold cropping systems in which three ecotypes of soybean, the spring, summer and autumn soybean are involved. Spring soybean is characterized by its day-length insensitivity, short-growing season determinate hibit. Sunimer soybean is long in growing season, its daylength sensitivity varying with varieties in a rarige from less to more sensitive, almost haif of the varieties being determinate habit, and large seed is predominat. Autumn soybam is daylength sensitive and short-growing season, most of them being semi-determinate of indeterminate ,and large seeded. The distribution of soybean varietal types is mainly determined by climate conditions and croping system patterns. Therefore, the ecological regionalization of soybean in Zhejians province can be divided into four types. 1. North part of Zhejiang is the cultivation region for spring and summer soybean; 2. Middle part of Zhejiang for spring, summer and autumn soybean; 3. South part of Zhejiang for spring, and mainly for summer, autumn soybean , and 4. East part of Zhejiang for spring, summer and mainly autumn soybean. The north and middle part of Zhejiang can also be divided into several sub-cultivation regions.