National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Wheat is an important cereal crop grown worldwide primarily for chapati, bread and biscuits. Target specific wheat breeding and quality improvement programs focus on developing genetically superior, high yielding, disease resistant cultivars with desired quality that are adapted to different growth environments. Drought refers to the condition of reduced soil moisture which induces several changes in crops i.e., morphological, biological, physiological and molecular changes. It also causes reduction in crop yield or in some cases cause crop failure. Rain-fed areas are more likely to face such conditions. These condition leads to the financial crisis among farmers whose major occupation is agriculture. Drought effects the crops in terms of its morphology, productivity etc. The essential stages of crop growth i.e., vegetative and reproductive are more likely to get affected. Some plants however possess mechanisms to tolerate such conditions. Drought decreases the crop production to 50%. Tolerance against water stress is a difficult parameter in which the performance of a crop is influenced by several characteristics i.e., biotic factors such as temperature fluctuations, high irradiance, and nutrient deficiencies and toxicities, can challenge crop plants. hence the breeding of drought tolerance is a very difficult task as it is influenced by various polygene’s and their expression and due some environmental factors. Therefore various Approaches like quantitative trait locus (QTL) mapping, marker assisted breeding, and introgression from wild gene pool are being employed to improve drought tolerance. This review herby provides information about the new emerging technologies for the production of drought resistant genotype.
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