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由于母本培矮64S对九二O反映迟钝,适当适量用好九二O对夺取两优培九制种高产极为重要。根据三年来的实践,用好九二O必须明确以下几个问题:1使用时间1999年试验,8月10日前后,日平均气温27～28℃,8期未至破口用九二O的包颈粒62%,结实率58.6%。这就表明,8期未至破口始穗是培矮64S
Due to the parent Peihiao 64S on the nine two O slow reaction, the proper amount of good use nine two O on the two Liangyou nine high-yielding is extremely important. According to three years of practice, make good use of nine two O must be clear the following questions: 1 The use of time test in 1999, before and after August 10, the average daily temperature of 27 ~ 28 ℃, 8 failed to break with nine two O Bag neck 62%, fruiting rate of 58.6%. This shows that the beginning of 8 is not breach Pei-breed 64S