STUDY OF SALINITY TOLERANCE IN Oryza sativa
HAMID KHEYRODIN *
Semnan University, Iran.
*Author to whom correspondence should be addressed.
Abstract
Salinity is major abiotic stress limiting growth and productivity of plants in many areas of the world due to increasing use of poor quality of water for irrigation and soil salinization. Plant adaptation or tolerance to salinity stress involves complex physiological traits, metabolic pathways and molecular or gene networks. A comprehensive understanding on how plants respond to salinity stress at different levels and an integrated approach of combining molecular tools with physiological and biochemical techniques are imperative for the development of salt-tolerant varieties of plants in salt-affected areas. Almost all crops that are important to humans are sensitive to high salt concentration in the soil. The presence of salt in the soil is one of the most significant abiotic stresses in farming. Therefore, improving plant salt tolerance and increasing the yield and quality of crops in salty land is vital. Transgenic technology is a fast and effective method to obtain salt-tolerant varieties. At present, many scholars have studied salt damage to plant and plant salt-tolerance mechanism. These scholars have cloned several salt-related genes and achieved high salt tolerance for transgenic plants, thereby showing attractive prospects. In this paper, the salt-tolerance mechanism of rice.
Keywords: Salt tolerance, plant osmotic, stress, ion toxicity rice