Vol. 7, Special Issue 6 (2019)
Salinity tolerance in wheat: An overview
Author(s): Kunika, Bhawna Kakar, Pankaj Kumar Singh, Varsha Rani and Girish Chandra Pandey
Abstract: Wheat is a grass which is cultivated for its seed, a cereal grain (staple food) and is the most common food crop used worldwide. There is a great impact of abiotic stress onto the growth, metabolism & productivity of plants. One of the most common factors for plant growth and yield is Salinity Stress. There is a high impact of salinity on morphological as well as physiological characteristics. Morphological characteristics may include root length, plant height and number of leaves whereas physiological characteristics include photosynthesis, water relations and chlorophyll contents. Saline land is not appropriable for cropping as plants are less tolerant towards salinity. Plant growth response towards salinity occurs in two phases: - Rapid phase and Slower phase. In rapid (osmotic) phase, there is inhibition of the young leaves whereas in slower (ionic) phase, senescence of mature leaves occur. Salt tolerance of wheat is greatly enhanced be potassium transporter (HKT) genes. Major three types of plant adaptations to salinity are: Osmotic stress tolerance, Na+ or Cl- exclusion and tolerance of tissue to accumulated Na+ and Cl-. However, overall control of Na+ accumulation and osmotic stress tolerance is of less molecular understanding. But molecular genetics and functional genomics provide a great opportunity to synthesize molecular and physiological knowledge to improve the salinity tolerance in plants.
Pages: 815-820 | 498 Views 69 Downloads
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How to cite this article:
Kunika, Bhawna Kakar, Pankaj Kumar Singh, Varsha Rani and Girish Chandra Pandey. Salinity tolerance in wheat: An overview. International Journal of Chemical Studies. 2019; 7(6): 815-820.
