不育系繁殖是水稻杂种生产的重要环节之一,提高不育系繁殖的产量,对于推广水稻杂种,确保高产起着积极的推动作用。今年我院繁殖二九南一号不育系67.56亩,总产4110斤,单产60.8斤,其中30亩亩产70.6斤,最高的坵块2.05亩,单产达104斤。为了从中找出规律性的东西,为大面积繁殖二九南一号不育系提供理论依据,现将我们试验研究的初步结果汇总如下,仅供参考。一基本情况二九南一号不育系繁殖田67.56亩,土质为青夹泥,肥力较差,前作绿肥(紫云英),亩产鲜草1500—2000斤,除此未施其他基肥。品种组合为二九南一号A×二九南一号B(注:二九南一号的A和B分别代表雄性不育系 Male sterile line breeding is one of the most important aspects of rice hybrid production. Increasing the yield of sterile line will play a positive role in promoting rice hybrids and ensuring high yield. This year we breed two nine south one sterile line 67.56 mu, with a total output of 4110 kg, yield 60.8 kg, of which 30 mu per mu yield of 70.6 kg, the highest hill 2.05 mu, yield of 104 kg. In order to find out the regularity of things, provide a theoretical basis for large-scale breeding of two nine South No. 1 sterile lines, now the preliminary results of our pilot study are summarized below, for reference purposes only. A basic situation Two nine South one male sterile line 67.56 acres of breeding fields, soil for the green folder mud, poor fertility, before the green manure (aspen), per acre fresh grass 1500-2000 jins, no other base fertilizer. Varieties for the combination of nine nine South One A two nine South on the 1st B (Note: two nine South No. A and B represent the male sterile line