Indole-3-butyric acid application mitigates sodium chloride stress in two cotton cultivars differing in salt tolerance

Author:

Tammam A.1

Affiliation:

1. 1 Alexandria University Botany Department, Faculty of Science Alexandria Egypt

Abstract

Soil salinity is a major constraint to food production because it limits crop yield and restricts the use of land previously uncultivated. Breeding for tolerance to salinity in crops has usually been limited by the lack of reliable traits for selection. The mechanism of salt tolerance in two cotton (Gossypium barbadensL.) cultivars (Giza 70 and Giza 88) and their responses to shoot spraying with 200 ppm m−3IBA were studied.Treatment with IBA not only improved the growth of salt-affected Giza 70, but also increased the growth of this cultivar up to −2.7 MPa and reduced the inhibitory effect of salinity on photosynthetic pigments.This was accompanied by differences in the accumulation of sucrose and total soluble sugars and in the total available carbohydrate and protein contents. IBA ameliorated the inhibitory effect of salinity on growth, increased the carbohydrate and protein contents of both cotton cultivars and markedly retarded the accumulation of proline and glycine betaine. It resulted in the reduction of Na+accumulation in Giza 70, while in Giza 88 it enhanced the absorption and translocation of K+, resulting in higher K+/Na+ratios in the shoots. There were pronounced differences in the electrophoretic patterns of the proteins in both cultivars under salt stress and IBA treatment.

Publisher

Akademiai Kiado Zrt.

Subject

Agronomy and Crop Science

Reference53 articles.

1. Salt tolerance and salinity effects on plants: a review;Asish K. P.;Ecotox. Environ. Safe.,2005

2. The accumulation and compartmentation of proline in relation to salt tolerance of three sorghum cultivars;Azooz M.;Indian J. Plant Physiol.,2004

3. Inputs to the active indole-3-acetic acid pool: de novo synthesis, conjugate hydrolysis, and indole-3-butyric acid b-oxidation;Bartel B.;J. Plant Growth Regul.,2001

4. Rapid determination of free proline for waterstress studies;Bates L. S.;Plant Soil,1973

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3