This book offers a thorough examination of how drought stress impacts various facets of a plant's physiology, ecology, and agricultural systems. It delves into the challenges posed by drought stress, a critical issue exacerbated by climate change and its impact on water availability. By employing a multidisciplinary methodology, the book endeavours to furnish a thorough comprehension of the intricate interplay between plants and their surroundings when faced with water scarcity. It proves to be an invaluable asset for scholars, students, policymakers, and experts who are keen on comprehending the intricate array of issues that drought stress poses. Moreover, it serves as a repository of effective strategies to tackle the consequences of drought stress in a world undergoing transformation. The book's multidisciplinary orientation guarantees a comprehensive exploration of the subject, encompassing the physiological, agricultural, and molecular reactions of plants.