北方春大豆生育期性状在不同播季及生态区的反应

A comparative study on maturity characteristics of spring soybean in Northeast of China in different planting seasons and ecological regions

选用北方春大豆品种,在7个大豆生态区采用春、夏、秋三季播种的生育期资料,分析了北方春大豆生育期性状的特点,包括生育前期、生育后期、全生育期日数及生育期结构(R/V)和标准差。研究结果将为深化大豆生态区划及品种的合理布局、育种提供重要的科学依据。

Based on the data of the maturity characteristics of spring soybeans in Northeast of China in different planting seasons and in seven ecological regions, this paper analyzed the characteristics of the days from sowing to emergence, emergence to flowering (DEF), flowering to maturing (DFM),the days from planting to maturing (DPM)and the generally varying trend of the ration between the DFM and DEF (R/V). The study provides an important scientific basis for the regionalization of soybean producing, the introducing varieties, the breeding of soybean varieties and the soybean scientific study in China.