冠菌素提高冬小麦抗旱性的生理机制

doi:10.3969/j.issn.1000-7091.2013.02.018

华北农学报 ›› 2013, Vol. 28 ›› Issue (2): 96-102. doi: 10.3969/j.issn.1000-7091.2013.02.018

所属专题： 小麦；抗旱节水；

冠菌素提高冬小麦抗旱性的生理机制

王言景¹, 臧贺藏², 张倩¹, 陈佳娜¹, 段留生¹, 李召虎¹, 李建民¹

1. 中国农业大学农学与生物技术学院, 农业部农作制度开放实验室, 北京 100193;
2. 河南省农科院农业经济与信息研究所, 河南郑州 450002

收稿日期:2013-01-25 出版日期:2013-04-28
通讯作者: 李建民(1958－)，男，江苏苏州人，教授，博士生导师，主要从事作物高产理论与技术研究。
作者简介:王言景(1984－)，男，山东临沂人，博士，主要从事作物高产栽培与生理研究。
基金资助:
国家重点基础研究发展计划“863计划”项目(2011AA10A206);公益性行业科研专项项目(200903007)

Physiological Mechanisms of Coronatine to Raise Drought Resistance in Winter Wheat Plants

WANG Yan-jing¹, ZANG He-cang², ZHANG Qian¹, CHEN Jia-na¹, DUAN Liu-sheng¹, LI Zhao-hu¹, LI Jian-min¹

1. College of Agronomy and Biotechnology, China Agricultural University, Key Laboratory of Farming System, Ministry of Agriculture, Beijing 100193, China;
2. Agricultural Economy and Information Research Institution, Henan Academy of Agricultural Science, Zhengzhou 450002, China

Received:2013-01-25 Published:2013-04-28

摘要/Abstract

摘要： 为研究喷施冠菌素对冬小麦抗旱性的影响,以济麦22,良星99与长武134为材料,在大田无灌溉条件下,分别于越冬期、返青期和开花期叶面喷施1μmol/L冠菌素,测定和分析了冠菌素对小麦形态特征和生理特性的影响。结果表明,喷施冠菌素后所有品种均能在一定程度上提高小麦叶片相对含水量、叶绿素含量、游离脯氨酸含量、可溶性糖含量和超氧化物歧化酶活性,降低丙二醛含量|3个生育时期相比,返青期的喷施效果较佳。

关键词: 冬小麦, 冠菌素, 抗旱性, 生理机制

Abstract: In order to study the effect of spraying coronatine on winter wheat,using three winter wheat varie-ties,Jimai 22,Liangxing 99 and Changwu 134 under field conditions with no irrigations,the 1 μmol/L coronatine were sprayed respectively at overwintering,reviving and flowering stage,and the effects of coronatine on the morpho-logical and physiological characteristic were examined. The results showed that regardless of variety,spraying coro-natine could improve in varying degrees the relative water content,chlorophyll content,praline content(PRO),solu-ble sugar and the activity of superoxide dismutase(SOD),and reduce the malonaldehyde(MDA)content. Comparing three spraying stage,thegreen stage is better than the others.

Key words: Winter wheat, Coronatine, Drought resistance, Physiological mechanism

中图分类号:

S512. 01

王言景, 臧贺藏, 张倩, 陈佳娜, 段留生, 李召虎, 李建民. 冠菌素提高冬小麦抗旱性的生理机制[J]. 华北农学报, 2013, 28(2): 96-102. doi: 10.3969/j.issn.1000-7091.2013.02.018.

WANG Yan-jing, ZANG He-cang, ZHANG Qian, CHEN Jia-na, DUAN Liu-sheng, LI Zhao-hu, LI Jian-min. Physiological Mechanisms of Coronatine to Raise Drought Resistance in Winter Wheat Plants[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(2): 96-102. doi: 10.3969/j.issn.1000-7091.2013.02.018.

http://www.hbnxb.net/CN/Y2013/V28/I2/96

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