Soil Salinity and Sodicity Effects on Plants and their Adaptation Mechanism: Review

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Research areas:
Year:
2021
Type of Publication:
Article
Keywords:
Mechanism, Salinity, Salt, Sodicity and Soil
Authors:
Desta Bekele
Journal:
IJRIES
Volume:
8
Number:
2
Pages:
30-39
Month:
March
ISSN:
2394-1375
BibTex:
Abstract:
Soils contain some water-soluble salts, but when these salts occur in amounts that are harmful for germination of seeds and plant growth. The aim of this review was to investigate effect of soil salinity and sodicity on plants. Sodic soils are low in soluble salts than saline or saline-sodic soils but high in exchangeable sodium. Salinity reduces plant growth through osmotic and toxic effects, which reduces root growth, and reduces water movement through the root with a decrease in hydraulic conductivity. Plant selection is an important management tools as species have a wide variability in salt tolerance and thus may have high potential for use in reclamation of saline sites by minimizing the salinity effect. Some plants species like halophytes have salt tolerance mechanisms through osmotic adjustment and reduced uptake and translocation of nutrients. Generally, plants have their own mechanism to adapt to soil sodicity and salinity.