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中国农学通报 ›› 2015, Vol. 31 ›› Issue (21): 98-101.doi: 10.11924/j.issn.1000-6850.casb15020068

所属专题: 生物技术 棉花 农业气象

• 农学 农业基础科学 • 上一篇    下一篇

不同棉花品种对干旱胁迫的生理响应及抗旱性评价

戴茂华,刘丽英,庞昭进,岳秀琴,吴振良   

  1. 河北省农林科学院旱作农业研究所/河北省农作物抗旱研究重点实验室,河北省农林科学院旱作农业研究所/河北省农作物抗旱研究重点实验室,河北省农林科学院旱作农业研究所/河北省农作物抗旱研究重点实验室,河北省衡水市桃城区农牧局,河北省农林科学院旱作农业研究所/河北省农作物抗旱研究重点实验室
  • 收稿日期:2015-02-11 修回日期:2015-03-23 接受日期:2015-03-25 出版日期:2015-07-28 发布日期:2015-07-28
  • 通讯作者: 吴振良
  • 基金资助:
    转基因生物新品种培育重大专项子课题 “抗逆棉花新品系选育” (2008ZX08005-003)。

Evaluations of Drought Resistance among Different Cotton Varieties

  • Received:2015-02-11 Revised:2015-03-23 Accepted:2015-03-25 Online:2015-07-28 Published:2015-07-28

摘要: 旨在研究干旱胁迫对不同棉花品种脯氨酸、可溶性糖、丙二醛、过氧化氢酶等生理生化指标的影响。采用田间人工模拟干旱法,设置干旱胁迫和正常浇水2个处理,运用隶属函数法综合评价品种抗旱性强弱。结果表明,干旱胁迫下,棉花叶片脯氨酸、可溶性糖等渗透调节物质的含量增加,过氧化氢酶、超氧化物歧化酶、过氧化物酶保护酶活性提高,抵御干旱的能力增强;棉花的抗旱性是一个复杂的生理生化机制,依据隶属函数综合评价法得出,4份棉花品种的抗旱性强弱依次为‘衡优12’>‘冀棉958’>‘中177’>‘邯杂306’。

关键词: 地表温度, 地表温度, 数值预报产品, 逐步回归分析, BP神经网络

Abstract: The aim was to study the effect of drought resistance on proline, water soluble sugar, malondialdehyde content and protective enzyme activities in different cotton varieties. A field simulating dry method was used and the two treatments, drought stress and irrigation conditions, were set up. Drought resistance abilities of tested varieties were evaluated by subordinate function values analysis. The results were as follows: the contents of proline, water soluble sugar, malondialdehyde increased in drought stress treatment. The enzymatic activities of catalase, superoxide dismutase and peroxidase also increased, and then the drought resistance strengthened. The drought resistance of cotton was a complex physiological mechanism. Using subordinate function values analysis, the drought resistance of 4 cotton varieties was as follows:‘Hengyou 12’ > ‘Jimian 958’ > ‘Zhong 177’ > ‘Hanza 306’ .