EFFECTS OF SALT STRESS ON ABSORPTION AND DISTRIBUTION OF OSMOTIC IONS IN WHEAT SEEDLINGS

被引：1
|
作者：
Guo, Weiwei [1 ]
Han, Xiaofan [1 ]
Zhang, Yumei [1 ]
Shi, Changhai [1 ]
Zhang, Hongsheng [1 ]
Lin, Qi [1 ]
Liu, Yiguo [1 ]
机构：
[1] Qingdao Agr Univ, Coll Agron, Qingdao 266109, Shandong, Peoples R China
来源：
BANGLADESH JOURNAL OF BOTANY | 2021年 / 50卷 / 04期
基金：
国家重点研发计划;
关键词：
Winter wheat; Salt stress; Ion absorption; Distribution; POTASSIUM; CALCIUM; SODIUM; NA+;
D O I：
10.3329/bjb.v50i4.57091
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Effects of salt stress on absorption and distribution of osmotic ions in wheat seedlings were studied with 4 winter wheat varieties under NaCl stress by exploring dynamic changes of Ca2+, K+, Na+, Ca2+/Na+, K+/Na+ and Na+ limiting ability. The results showed that the contents of K+, Ca2+ and the K+/Na+ ratio gradually decreased in a manner of both salt concentration dependent and stress time dependent. The extent of reduction of K+ and Ca2+ in root was much more severe than that in shoot. The ability of Na+ limiting in QM6 and DK961 was stronger than that in JM22 and QF1. These results indicate that the maintenance of higher Na+ content in root, Na+ limiting ability, Ca2+ and K+ concentration will be the main physiological traits for the salt-tolerance of wheat.
引用
收藏
页码：1209 / 1214
页数：6
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