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玉米种子催芽,过去是采取温水浸种高温催芽法。实践看这种方法易造成伤热,不同程度地损坏芽率,降低种子活力,播种后表现为芽势弱、出苗率低。特别是芽率低的玉米种子和亲本种子,芽率的损失更严重,甚至有很多人催不出芽,经我市6年来实践,采取低温浸种适温催芽法,收到了较好的效果。 1.用10℃左右的凉水浸种12～24小时,以种胚表面无皱褶为准。捞出后放在25℃左右的温室中,将种子放在湿麻袋上平堆3～5厘米厚,再盖上湿麻袋,种子温度保持在25℃左右,经24小时后即可露出胚根。
Germination of corn seeds, the past is to take warm water soaking germination method. Practice shows that this method is easy to cause heat, to varying degrees, damaged shoot rate, reduce seed vigor, performance after sowing bud weak, low emergence rate. In particular, the low germination rate of corn seeds and parent seeds, the rate of bud loss is more serious, and even many people can not bud, after 6 years of practice in our city, low temperature soaking temperature sprouting method, received good results. 1. With about 10 ℃ soaked in cold water for 12 to 24 hours to embryo surface without wrinkle prevail. Remove and put in a greenhouse at about 25 ℃, the seeds on wet sacks heap 3 to 5 cm thick, and then covered with wet sacks, the seed temperature is maintained at about 25 ℃, after 24 hours to reveal the radicle .