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一种非光敏特早熟小麦品种光温特性之初探

巴特尔·巴克1,2 郑大玮1 Herman van Keulen2 Jan Verhagen2 吴富宁1 曾晓光3   

  1. 1中国农业大学资源与环境学院,北京 100094;2荷兰国际植物研究所,瓦和宁根 166700 AA;3北京市农林科学院,北京 100087
  • 收稿日期:2004-09-02 修回日期:2005-01-26 出版日期:2005-07-18

Photo-thermal characteristics of a non-photosensitive and extra-premature winter wheat variety

Batur Bake 1,2,ZHENG Dawei 1,Herman van Keulen 2,Jan Verhagen 2, WU Funing 1,ZENG Xiaoguang 3   

  1. 1Collage of Resources and Environmental Science,China Agricultural University,Beijing 100094,China;2Plant Research International,Business Unit Agrosystems Research,P.O.Box 16,6700 AA,Wageningen,Netherlands; 3Beijing Academy of Agricultural and Forestry Sciences,Beijing 100087,China

  • Received:2004-09-02 Revised:2005-01-26 Online:2005-07-18

摘要: 以强冬性小麦品种京冬8号为对照,采用分期播种试验,分析了非光敏特早熟小麦新品种冬早5号的生长发育进程和光温特性,并探讨了播期对两种小麦品种生育期和产量的影响.结果表明,冬早5号小麦品种比对照品种京冬8号早熟3~4 d,标准播期增产43.4%.冬早5号小麦品种在低温、短光照条件下也能完成正常的穗分化进程,其每经历一个穗分化期Z所用的天文日照时数、有效积温和光温积明显少于京冬8号.该品种在穗分化阶段对光照不敏感,无需经过严格的春化阶段和光照阶段,品种类型介于冬性和春性之间,冬前适播期较广,适合秋播也可以春播,这在小麦育种领域是个突破.

关键词: 小麦, 氨基酸态氮, 铵态氮, 转氨酶, 无菌培养

Abstract: In a sowing by stages test with winter wheat variety Jingdong 8 (JD8) as reference,this paper studied the photo?thermal characteristics of a non?photosensitive and extra-premature winter wheat variety Dongzao 5 (DZ5),and the effects of sowing stages on its growth and yield.The results showed that the harvest date of DZ5 was 4~5 days earlier than that of JD8,and its yield with standard sowing date increased by 43.4%.In addition,DZ5 had a shorter thermoperiod for ear differentiation,and didn't need strict vernalization process and photoperiod,which could be sown either before or after winter.

Key words: Triticum aestivum, Amino acid-N, NH4+-N, Transaminase, Sterile culture