杂交稻秋季制种,由于近年来气候多变和组合更新等新情况,对制种中一些技术问题,有了不同看法。现谈谈我们的认识。父本花粉量和父母本行比 1978、1979连续两年,我省湘中一带威优6号秋季制种的产量都比较低,不少人认为低产的原因是父本国际26花粉量少、父母本行比安排过大所致。1980年我们对国际26的花粉量以及在田间的分配情况 Hybrid seed production in autumn, due to climate change in recent years and the combination of new situations such as updates on seed production in a number of technical issues, have different views. Now talk about our understanding. The male pollen amount and the parent’s ratio were lower than those of 1978 and 1979 for two consecutive years. The yield of autumn seed production of Weiyou 6 in the middle Hunan province was relatively low. Many people think that the low yield is due to the low pollen amount, Parents than the arrangements for the Bank due to. 1980 Our international 26 pollen quantity and distribution in the field