Development and Evaluation of Drought-Tolerant Crop Varieties for Climate-Resilient Agriculture
Abstract
Drought has become one of the most severe environmental constraints affecting global agricultural productivity due to climate change, increasing temperatures, irregular rainfall patterns, and declining freshwater availability. Water scarcity significantly limits crop growth, reduces nutrient uptake, disrupts physiological processes, and ultimately decreases crop yield and food security. The development of drought-tolerant crop varieties has therefore become a critical strategy for achieving climate-resilient agriculture and ensuring sustainable food production. Advances in plant breeding, biotechnology, molecular genetics, genomic selection, and precision agriculture have accelerated the development of crop varieties capable of maintaining productivity under water-limited conditions. These varieties exhibit improved root architecture, efficient water-use mechanisms, enhanced osmotic regulation, greater photosynthetic efficiency, and increased tolerance to heat and drought stress. This study examines the development and evaluation of drought-tolerant crop varieties for climate-resilient agriculture. It explores the physiological and genetic mechanisms underlying drought tolerance, evaluates breeding approaches and biotechnological innovations, analyzes the role of digital technologies and precision agriculture in drought management, and discusses future policy interventions for promoting climate-resilient farming systems. The study concludes that integrating advanced breeding technologies, artificial intelligence, remote sensing, genomic tools, and sustainable agricultural practices can significantly improve crop resilience under changing climatic conditions. Strengthening research, farmer participation, institutional support, and international collaboration will be essential for developing drought-resilient agricultural systems capable of ensuring food security, conserving water resources, and promoting sustainable agricultural development in the face of increasing climate variability.