MODULATION OF GROWTH, GASEOUS EXCHANGE PARAMETERS AND ANTIOXIDANTS IN WHEAT (TRITICUM AESTIVUM L.) BY FOLIAR SPRAY OF GLYCINEBETAINE (GB) AT DIFFERENT GROWTH STAGES UNDER SALT (NA2SO4) STRESS

被引：1

作者：

Talat, A. ^{[1
]}

Nawaz, K. ^{[1
]}

Hussain, K. ^{[1
]}

Fatima, S. ^{[1
]}

Akhtar, S. ^{[1
]}

Siddiqi, E. H. ^{[1
]}

Jhan, S. ^{[1
]}

Bashir, S. ^{[1
]}

Javeria, M. ^{[1
]}

机构：

[1] Univ Gujrat, Dept Bot, Gujrat, Pakistan

来源：

APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH | 2017年 / 15卷 / 03期

关键词：

exogenous application; photosynthetic pigments; ROS; salinity; vegetative stage; reproductive stage; EXOGENOUSLY APPLIED GLYCINEBETAINE; PHOTOSYNTHETIC CAPACITY; SALINITY TOLERANCE; OXIDATIVE STRESS; WATER RELATIONS; MAIZE PLANTS; ACCUMULATION; PROLINE; TOMATO; SALINIZATION;

D O I：

10.15666/aeer/1503_16111623

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

This experiment was conducted to evaluate the impact of foliar application of glycinebetaine on vegetative and reproductive growth stages of two wheat (Triticum aestivum L.) varieties under Na2SO4 stress (150mM). There were three levels (0mM, 50mM and 100mM) of glycinebetaine (GB) applied as foliar spray. Data regarding biomass, growth parameters, gaseous exchange and antioxidant activities were recorded. Salt stress reduced the growth attributes, Net CO2 assimilation rate and antioxidant activities. However, foliar spray of GB reduced the toxic effects of salinity. GB improved the photosynthetic rate of Na2SO4-treated plants of both varieties; it also increased the activities of antioxidant enzymes, such as CAT and POD under saline environment. Both levels of GB i.e. 50 mM and 100 mM were almost equally effective in affecting the POD activity in salt treated plants. Finally it can be concluded that salinity tolerance can be induced by foliar application of GB.

引用

页码：1611 / 1623

页数：13

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