当年采收的矮箕青菜种子,要经过一段休眠期到大暑以后播种,出苗才整齐。在缺少陈籽,而又急需插种短期青菜,增加夏淡季上市量的情况下,用新籽播种往往出苗率低。为了解决这个矛盾,虹桥公社种子场试用“920”浸种等方法来打破青菜种子的休眠 Short harvest of the year when the kihwa vegetable seeds, to go through a period of dormancy after the summer sowing, nursery tidy. In the absence of Chen seed, and the urgent need to intervene short-term vegetables, increase the amount of summer listing, the case of new seeded seedling is often low. In order to solve this contradiction, Hongqiao commune seed field trial “920” soaking seed methods to break the dormancy of vegetable seeds