Vol. 12, Issue 11 (2023)

Author(s):
Bhimrao G Thaware, Ajay V Narwade, Kirti Bhardhan, Nilima Karmakar, Kamal Kant, Patik B Patel and Alok Shrivastava

Abstract:
Among environmental stresses, drought is the most devastating abiotic stress faced by crops across the world. Rice is known to be a water loving plant and thus, the stress is one of the major obstacles in rice production. Therefore, there is an urgent need to identify the tolerant traits which can be helpful to mitigate the problem of drought stress. Besides, the optimal K nutrition can be seen as a functional approach owing to its miracle role in improving drought tolerance in the plants. Hence to address this question, a pot experiment was conducted in open conditions at Department of Plant Physiology, N. M. College of Agriculture, Navsari Agricultural University, Navsari, during Rabi 2021 to study the “characterization of rice (oryza sativa l.) genotypes in response to potassium application under water stress”. The treatments for pot experiments were comprised of two levels of water regime viz., no water stress (I1, 100%) field capacity and water stress (I2, 50%) field capacity along with two levels of K fertilizer viz., (K1, 20 ppm K) and (K2, 40 ppm K). The seeds of twenty genotypes, were sown in plastic bags and after the seedling emergence, plants were irrigated and fertilized as per treatments during the course of experimentation. The treatments were laid out in a Completely Randomized Design (CRD) with factorial concept accompanied by three repetitions.