我国南方春大豆及春秋两用型早熟秋大豆良种的繁育体系

对育成的春秋大豆新品种，采用当地和异地不同时期种植等农艺措施，提高了种子的发芽率，复壮了种性，从而完善了我国南方春大豆及春秋两用型早熟秋大豆的良种繁育体系（图１）。

STUDIES ON THE PROPAGATING SYSTEM OF SOUTHERN SPRING AND AUTUMN SOYBEANS FOR INCREASING SEED VIGOR

Planted spring and autumn soybeans in Southern China in spring, their seed germination rates were very lower (about 60%-70%) for the high temperature and moisture in the soybeans maturate and preservation periods. In order to resolve this problem. a study of propagating system of the soybeans by planted in different seasons and locations was conducted. The results indicated that the seed germination rates were all increased significantly with planting in Northeast in spring, Huang-Hui region in summer, Southwest and Southern in summer and autumn, compared with planting in Southern China in spring. It seemed that this propagating system was very adaptable to Southern spring and autumn soybeans for increasing seed vigor.