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应用生态学报 ›› 1999, Vol. 10 ›› Issue (1): 35-38.

• 研究论文 • 上一篇    下一篇

光温条件对光温敏核不育小麦ES-8不育基因表达的影响

周美兰1, 唐启源1, 何觉民2, 陈建明2   

  1. 1. 湖南农业大学植物科技学院, 长沙 410128;
    2. 湖南杂交小麦研究中心, 长沙 410128
  • 收稿日期:1997-05-12 修回日期:1997-08-18 出版日期:1999-01-25 发布日期:1999-01-25
  • 通讯作者: 周美兰,女,42岁,副教授.硕士学位.主要从事实验统计教学和作物生理生态研究工作.
  • 基金资助:

    国家自然科学基金资助项目(39270434).

Impact of photoperiod-temperature conditions on male-sterile gene expression of photoperiod-temperature sensitive genic male-sterile wheat line ES-8

Zhou Meilan1, Tang Qiyuan1, He Juemin2, Chen Jianming2   

  1. 1. Hunan Agricultural University, Changsha 410128;
    2. Hunan Hybrid Wheat Research Center, Changsha 410128
  • Received:1997-05-12 Revised:1997-08-18 Online:1999-01-25 Published:1999-01-25

摘要: 采用分期播种试验方法,研究了光温条件对光温敏核不育小麦ES8不育基因表达的影响。结果表明,光温条件的变化影响不育基因的表达,在长沙地区,ES8在9月5日至10月15日播种,花粉败育率达100%,不育株率达100%.在12月5日至12月15日播种,其自交结实率为71.6~72.7%,在10月25日至11月25日播种,表现为部分可育和部分不育。ES8存在两个育性转换的临界期,10月25日播期为不育变为半不育的育性转换临界期,12月5日为部分可育变为完全可育的育性转换临界期。育性转换的临界日长约小于11.50h.

关键词: 小麦, 光温敏核不育, 育性转换, 光温条件, ES, 干沉降速率, 生源要素, 干/湿沉降通量, 生态效应, 胶州湾

Abstract: Through changing sowing date, the impact of photoperiod-temperature conditions on the male-sterile gene expression of photoperiod-temperature sensitive genic male-sterile wheat line ES-8 was studied. The results show that in Changsha, when ES-8 was sowed from September 5 to October 15, the percentage of its pollen abortion and that of sterile plants were all 100%. When sowed from December 5 to December 15, its self seeding rate ranged in 71.6~72.7%, while from October 25 to November 25, it showed partly sterile and partly fertile. ES-8 had two critical dates of fertility alteration, one on October 25, from sterile to semi-sterile, and another on December 5, from partly fertile to completely fertile. The critical day-length of fertility alteration was less than 11.5 hours.

Key words: Wheat, Photoperiod-temperature sensitive genic male-sterility, Fertility alteration,Photoperiod-temperature condition, Wheat line ES-8, atmospheric dry deposition velocity, ecological effects, biogenic elements, fluxes of dry and wet depositions, Jiaozhou Bay