油菜年前抽苔是油菜生产中极不利的现象,监利毛市人民公社镜台小队的一块本地油菜,11月5日已有千分之三的植株抽了苔。年前抽苔的油菜,决不可能正常开花结果,因为在抽苔后,没有为油菜正常开花所需要的温度,特别是遇到冻冰时期,抽出的苔会冻死,因而造成减产。这个队里的油菜所以抽苔是由于以下几个原因: 一、所用品种冬性不强而又过于早播:该队所用品种是白菜类型的本地油菜,冬性不强,生育期短,易于通过春化阶段和光照阶段;而播种斯又早在9月28日,比一般适宜播种期早了半个多月。 Rapeseed rape years ago is a very negative phenomenon in rapeseed production, Jianli Mao Municipal People’s commune stage team a local rapeseed, November 5 already three thousandths of plants pumping moss. The bolting of rapeseed years ago will never be able to flowering normally, because after bolting, there is no temperature required for proper flowering of rapeseed, especially in the frozen ice period, the extracted moss will freeze to death, resulting in reduced production. The team rape moss is due to the following reasons: First, the species used in winter is not strong and too early sowing: the team used varieties of cabbage type of local rape, winter is not strong, short growth period, easy Through the vernalization stage and the light stage; and sowing as early as September 28, more than half a month earlier than the general suitable sowing period.