Physiology of salt stress in wheat: A Review

Subject Areas : agronomy

Adel  Modhej ¹ (Department of Plant Production and Genetics, Shushtar Branch, Islamic Azad University, Shushtar, Iran)

Received: 2021-11-07 Accepted : 2021-12-01 Published : 2022-02-20

Keywords: Salinity, enzymes, stress tolerance, ion stress,

Abstract :

Salinity stress is one of the important stresses affecting germination, growth, production and quality characteristics of wheat. Researchers have described salt stress as the accumulation of ions such as sodium, sulfate, and chlorine in the rhizosphere environment in a way that disrupts the natural growth of plants. Salinity stress through reducing the cell pressure, inhibition the functioning of membranes, affecting the activity of enzymes, inhibiting photosynthesis and inducing ion deficiency due to the reduction of ion transport and other physiological processes causes a decrease in growth, leaf area index, biomass and grain yield. Wheat cultivars show different reactions to soil and water salinity. Increasing tolerance to salinity in bread wheat cultivars is related to a decrease in sodium concentration in the plant and also a decrease in the sodium to potassium ratio in the leaves. Separation of sodium in leaves and preferably potassium is related to the presence of D genome in hexaploid wheats. In general, investigating physiological reactions, especially in salinity tolerant genotypes, is helpful for plant breeders to release salinity tolerant genotypes. This research is to study the effect of salinity stress on some characteristics Physiological and growth of wheat has been discussed.

References:

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