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作物学报 ›› 1992, Vol. 18 ›› Issue (04): 296-300.

• 研究论文 • 上一篇    下一篇

水稻闭颖授粉特性的遗传及其生物学意义

滕利生; 徐丽莎   

  1. 浙江省嘉兴市农业科学研究所
  • 收稿日期:1990-12-05 修回日期:1991-04-26 出版日期:1992-07-12 网络出版日期:1992-07-12

Studies on the Inheritance of Cleistogamy in Rice and Its Biological Meaning

Teng Lisheng;Xu Lisa   

  1. Jiaxing Institute of Agricultural Sciences,Zhejiang
  • Received:1990-12-05 Revised:1991-04-26 Published:1992-07-12 Published online:1992-07-12

摘要:

在正常条件下,水稻闭颖授粉特性是一种罕见的性状。已知具有这种特性的水稻品种有兴除1号和小麦稻。遗传分析表明,闭颖授粉受一对隐性核基因控制。试验结果表明,开花期遇到低温或连续降雨时,这种特性有利于水稻受精结实。此外还可看到,闭颖授粉特性能防止异花授粉,对保持种性有重要的生物学意义。

关键词: 水稻, 闭颖授粉, 近等基因系, 耐寒性, 异交率

Abstract:

Cleistogamy is a rare characteristic of Rice under normal conditions. It wasknown that Xingchu 1 and Xiaomaidao are 2 varieties with this rare characteristic.Crosses were made between these 2 varieties and a chasmogamous variety Nonghu 6and the segregating ratios of the F, populations indicated that

Key words: Rice, Cleistogamy, Near-isogenic lines, Cold tolerance, Outcrossing percentage

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