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  • ThesisItemOpen Access
    Molecular Aspects of Drought Tolerance in Pearl millet [(Pennisetum glaucum) L. (Br.)]
    (College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, 2017) PARBHJEET KAUR; V. P. Agarwal
    Environmental stresses, such as drought, salinity, cold and heat cause adverse effects on the plant growth and development. Drought stress, the major constrain for crop productivity, is affecting 1/3 of arable land world-wide and will probably increase in the on-going climate changes. Drought, being the most important environmental stress, severely impairs plant growth and development, limits plant production and the performance of crop plants, more than any other environmental factor (Shao et al., 2009). Drought impacts include growth, yield, membrane integrity, pigment content, osmotic adjustment, water relations, and photosynthetic activity (Benjamin and Nielsen, 2006; Praba et al., 2009). Drought stress is affected by climatic, edaphic and agronomic factors. The susceptibility of plants to drought stress varies in dependence of stress degree, different accompanying stress factors, plant species, and their developmental stages (Demirevska et al., 2009). Acclimation of plants to water deficit is the result of different events, which lead to adaptive changes in plant growth and physio-biochemical processes, such as changes in plant structure, growth rate, tissue osmotic potential and antioxidant defenses (Duan et al., 2007).
  • ThesisItemOpen Access
    Identification, Cloning and Characterization of Drought Tolerance Gene in Moth Bean [Vigna aconitifolia (Jacq.) Marechal]
    (College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, 2020) Mr MANOJ KUMAR MEENA; Y. Sudarsan
    Moth bean [Vigna aconitfolia (Jacq.) Marechal] is an annual legume crop which Belongs to the subfamily papilionaceae of fabaceae. The moth bean is an herbaceous creeping annual that creates soil coverage when fully grown and conserve the soil moisture significantly (Meena et al., 2016). It is known by several names at different places and linguistic zones. It indicates the wide social acceptance and geographic adaptation and considered as native pulse of India. Ecologically, it is an annual legume of dry and warm region and it is the most drought hardy annual legume in arid regions. Moth bean has deep and fast penetrating root system, which help it to survive upto 30-40 days in open fields without any irrigation (Kumar, 2002). It is however, the most important pulse in arid zone perspective. Moth bean plants generally grow 15-40 cm tall, having short internodes. The primary branches are being as large as 1.5 m possessing papilionaric flowers (Kumar, 2002).