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我们从1976年开始,试用繁殖田、制种田收刈后的不育系再生苗,进行再次制种、繁殖,获得了成功。如宦塘三、四队,1977年早造广陆银繁殖田,面积0.36亩,6月12日收获不育系种子51斤,折亩产140.8斤。收刈时母本留桩7—8寸,拔掉父本,6月18日对母本亩施尿素10斤,6月20日将4月10日预先假植的恢复系禾蔸移到这块田里作父本,进行二次制种,7月15日收获,共经33天时间,收杂交水稻种子16.5斤,折亩产45.5斤。木根大队莫村四队、龚罗二队和东塘队等利用再生苗制种、繁殖也都收到了成效。两年来从几个队的试验证明,利用不育系再生苗进行再次繁殖、制种,是个时间短、收效大的制种的好办法,我们认为:
We started in 1976, trial breeding field, the system of harvesting and breeding of sterile plants after the regeneration of seedlings, to re-seed, reproduction, was successful. Such as Hwangang three, four teams, as early as 1977 made wide land silver breeding fields, an area of 0.36 acres, June 12 harvest sterile male sterile seeds 51 pounds, fold yield 140.8 pounds. Collecting the mother to stay pile 7-8 inches, unplug the father, on June 18 on the female mu KU urea 10 pounds, on June 20 will be April 10 pre-implanted restorer Woo Woo moved to this Block field father, for the second seed, July 15 harvest, a total of 33 days, received hybrid rice seed 16.5 kg, yield 45.5 kg mu. Mok root brigade Mo village four teams, Gong Luo two teams and Dongtang team use of regenerative seed production, breeding also have received results. Experiments from several teams over the past two years proved that it is a good way to replant and seed the regenerated seedlings with sterile lines for a short time and a great yield. We think: