华北农学报 ›› 2015, Vol. 30 ›› Issue (3): 98-104. doi: 10.7668/hbnxb.2015.03.018

所属专题: 水稻

• 论文 • 上一篇    下一篇

育性敏感期低温对水稻光温敏不育系生理指标的影响

柏斌1,2, 吴俊1,2, 庄文2, 姚栋萍2,3, 李莺歌1,2, 邓启云1,2,3   

  1. 1. 中南大学 研究生院 隆平分院, 湖南 长沙 410125;
    2. 湖南杂交水稻研究中心 杂交水稻国家重点实验室, 湖南 长沙 410125;
    3. 湖南农业大学 农学院, 湖南 长沙 410128
  • 收稿日期:2015-03-14 出版日期:2015-06-28
  • 通讯作者: 邓启云(1962-),男,湖南浏阳人,研究员,博士,主要从事水稻遗传育种和杂种优势利用研究。
  • 作者简介:柏斌(1987-),男,河南驻马店人,在读博士,主要从事水稻遗传育种研究。
  • 基金资助:
    国家“863”计划项目(2012AA101103)

Effects of Low Temperature on Physiological Indexes of Rice PTGMS Lines at the Fertility Sensitive Stage

BAI Bin1,2, WU Jun1,2, ZHUANG Wen2, YAO Dong-ping2,3, LI Ying-ge1,2, DENG Qi-yun1,2,3   

  1. 1. Longping Branch of Graduate School, Central South University, Changsha 410125, China;
    2. State Key Laboratory of Hybrid Rice, China National Hybrid Rice Research and Development Center, Changsha 410125, China;
    3. College of Agronomy, Hunan Agricultural University, Changsha 410128, China
  • Received:2015-03-14 Published:2015-06-28

摘要: 利用生产上常用的5个水稻光温敏不育系材料,在育性敏感期置于人工气候室内进行低温处理,分析低温对供试材料生理指标的影响以及耐冷性差异与生理指标变化之间的联系。低温设置为17.5 ℃、10 d,对照为21 ℃、10 d的可育温度,考察处理5,10 d以及返回大田生长5 d时的生理变化指标。结果表明,相比不耐冷的不育系,耐冷型不育系在低温处理前期SPAD值与对照相比变化不显著,SOD、POD活性略有增强,MDA含量、相对电导率有所增加;随着处理时间的延长,SPAD值、Pn值、Tr值、SOD、POD活性均开始下降,但下降幅度较不耐冷的小,MDA含量、相对电导率的持续增加也要慢于不耐冷不育系。

关键词: 水稻, 光温敏不育系, 低温, 育性敏感期, 生理指标

Abstract: Using five photo thermo sensitive genic male sterile(PTGMS) lines widely used in the production as experimental materials,a growth chamber experiment was conducted to analysis physiological characteristics of these lines and ascertain the intrinsic physiological index of the cold-tolerant lines under the effects of low temperature stress of different duration.The 17.5 ℃,10 d treated plants as cold treated materials,the 21 ℃,10 d fertile treated plants as control materials,the physiological indexes were investigated in the stage of the fifth,the tenth day of treatment and the fifth day of transplanting to field,respectively.The results showed that in the early days of cold treated stage,comparing the cold-sensitive sterile lines,the SPAD values of cold-tolerant lines had no significant chang,SOD,POD activity had slight enhancement,MDA and relative conductivity values increased slightly.But after a long time of cold treatment,SPAD,Pn,Tr,SOD,POD values of cold-tolerant lines decreased gradually,MDA and relative conductivity values increased gradually,but these changes were lower than those of cold-sensitive lines.

Key words: Rice, Photo thermo sensitive genic male sterile line, Low temperature, Fertility sensitive stage, Physiological index

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引用本文

柏斌, 吴俊, 庄文, 姚栋萍, 李莺歌, 邓启云. 育性敏感期低温对水稻光温敏不育系生理指标的影响[J]. 华北农学报, 2015, 30(3): 98-104. doi: 10.7668/hbnxb.2015.03.018.

BAI Bin, WU Jun, ZHUANG Wen, YAO Dong-ping, LI Ying-ge, DENG Qi-yun. Effects of Low Temperature on Physiological Indexes of Rice PTGMS Lines at the Fertility Sensitive Stage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(3): 98-104. doi: 10.7668/hbnxb.2015.03.018.

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