新疆农业科学2017，Vol.54Issue(8)：1384-1393,10.DOI:10.6048/j.issn.1001-4330.2017.08.002
11份新疆小麦品种幼苗耐盐性及相关形态生理特性研究
Study on Salt Tolerance and Related Morphological and Physiological Characteristics of 11 Xinjiang Wheat Varieties Seedlings
摘要
Abstract
[Objective] To study the effects of salt stress on the morphological and physiological characteristics of winter wheat seedlings and to understand the difference of salt tolerance at the seedling stage of the main cultivated wheat varieties in Xinjiang.[Method]The morphology and the physiological parameters of 11 Xinjiang wheat varieties seedlings were studied by using 2％ Na2SO4 to simulate the salt stress,and the identi fication index and the salt tolerance of the seedlings were also analyzed by the weighted membership function method.[Result] Under the condition of stress,the test index and photographic ratio had varying degrees of change.Under the condition of 48 hours of salt stress,the root length and leaf length ratios of different varieties were different compared with the control group.But with the extension of stress time,all varieties declined and the chlorophyll content of the majority of species tested decreased under salt stress.Under the salt stress,the activities of peroxidase in the seedlings of most varieties decreased first and then increased.The changing trend of MDA in different cultivars was different.[Conclusion] The analysis results of salt tolerance coefficient showed that the changing trend of single index could not comprehensively and effectively measure the salt tolerance of wheat.According to the D value of the weighted membership function,the order of the comprehensive evaluation of salt tolerance of all tested varieties at seedling stage is:Xindong 18 ＞ Xindong 35 ＞ Xindong 19 ＞ Xindong 22 ＞ Zhongyou 9507 ＞ Xindong 32 ＞ Xindong 40 ＞ Xindong 23 ＞ Xindong 28 ＞ Xindong 17 ＞ Xindong20.关键词
小麦/幼苗期/耐盐性/形态指标/生理指标Key words
wheat/seedling stage/salt tolerance/morphological index/physiological index分类
农业科技引用本文复制引用
曹俊梅,哈力旦·依克热木,方辉,芦静,张新忠,吴新元,周安定,黄天荣,高永红,刘联正,范贵强..11份新疆小麦品种幼苗耐盐性及相关形态生理特性研究[J].新疆农业科学,2017,54(8):1384-1393,10.基金项目
自治区公益性科研院所基本科研业务经费资助项目(KYGY2016117) （KYGY2016117）
农业部西北地区小麦抗旱耐盐生物学科学观测实验站 （）
新疆维吾尔自治区研究与技术开发计划重大专项(201230116-1)the Basic Research Funding for Public Welfare Research Institutes of Xinjiang Uygur Autonomous Region (KYGY2016117) （201230116-1）
Ministry of Agriculture's Funding for Scientific Observation Experimental Station for Drought Resistance and Salt Tolerance of Wheat in Northwest of China （）
Major Special Program for R & D Research of Xinjiang Uygur Autonomous Region (201230116-1) （201230116-1）
