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杂交水稻是我国水稻科研工作中的重大突破,有明显地增产优势。配制杂交种工作的成效直接影响到杂交水稻的推广速度。制种是一个复杂的技术过程,而调节父母本花期相遇,又是制种工作中比较难以掌握的技术关键。为了摸索杂交制种技术,观察父母本花期相遇,去年在洋县农场进行了两个组合的制种。初报如下: 一、配制组合: (一)南优3号(二九南1号A×国际661); (二)汕优2号(珍汕97 A×国际24); 二、实施情况: (一)制种面积分别为1厘和2厘。 (二)父本(恢复系)国际661和国
Hybrid rice is a major breakthrough in China’s rice scientific research, there is a clear yield advantage. The effectiveness of the preparation of hybrids directly affects the promotion of hybrid rice. Seed production is a complex technical process, and to adjust the parents of the flowering encounter, but also the more difficult to master the seed production technology key. In order to explore hybrid seed production technology, observe the parents of the flowering meet last year in Yangxian County, two combinations of seed production. First report is as follows: First, the preparation of the combination: (A) Nam 3 (29 South No. 1 A × International 661); (2) Shanyou 2 (Zhenshan 97 A × International 24); Second, the implementation of: (A) Seed production area is 1% and 2% respectively. (Two) male parent (restore system) international 661 and the country