1严格把握抽雄时间在抽雄前30d,就要认真观察亲本在制种田间的生长情况和表现,预测花期能否相遇。如果预测花期不遇,要尽快进行调节,力争花期相遇。在确保花期相遇的情况下,把握时机抽雄。抽雄过早易伤及母本,抽雄过晚易造成跑粉。因此,抽雄时间非常重要,一定要因 1 strictly grasp the time of tasseling 30 days before tasseling, we must carefully observe the parental growth in the field and performance of the system, the forecast flowering meet. If you do not expect flowering, as soon as possible to adjust, and strive to encounter flowering. In ensuring the case of flowering meet, take the opportunity to draft male. Tasseled easy premature injury and maternal, tasseled too easy to cause powder. Therefore, tasseling time is very important, must be due