Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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Abstract - Issue Sep 2011, 32 (5) Back
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Causes
of salinity and plant manifestations to salt stress: A review Author Details |
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Plant Physiology Section,
Department of Botany, |
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Mohd. Irfan |
Plant Physiology Section, Department
of Botany, |
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Plant Physiology Section,
Department of Botany, |
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(Corresponding
author) |
Plant Physiology Section, Department of Botany, e-mail: shayat@lycos.com |
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Publication Data Paper received: 10
October 2009 Revised
received: 14
September 2010 Accepted: 24 September 2010 |
Abstract Salinity in agricultutal terms is the excess of salts above the level
plant require. Most often it poses constrains in the growth hence
productivity of the category of plants called glycophytes,
wherein falls major crops, therefore is a serious concern. It is often
recognized as excess of sodium ions (sodicity) that
imparts life threatening consequences in plant due to mal-textured soil
hindered porosity and aeration leads to physiological water deficit. Mingling
with other edaphic/environmental factors viz.
precipitation, temperature, flooding, soil profile, water table exaggerates
the catastrophe synergistically. Improper irrigations system, leaching
fraction added with land clearing and deforestation have been marked as the
major cause. The present review underlines the different sources of salinity
stress and their physiological manifestations, toxicity responses alongwith tolerance in plants and management strategies
in affected landscapes. Key
words Salinity stress, Planet
tolerance, Physiological manifestation, Management strategies |
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