The issue of flooding has become a significant challenge on a global scale especially in rain-fed ecosystems, having soils with poor drainage. This significantly diminishes crop yield. Therefore, it is imperative to address the issue of flood stress, including the potential strategies for mitigating its adverse effects on crop yield, in order to ensure the continued provision of food for the growing global population. This book aims at bringing out a comprehensive collection of information on flooding stress on plants such as morphological, physiological, and molecular responses of plants to flood stress, omics studies to understand the molecular mechanism underlying flooding stress tolerance, and transgenic and microbial strategies to overcome flood stress. It also deals with the use of new technologies to understand flood stress and plant responses. The chapters included in this book are the compilation of latest information and data on the flood stress, its effect on the physiology, growth, and development of crop plants as well as mechanisms adapted by plants to overcome this stress. This book will help Researchers, Professors, Agri-Entrepreneurs, and Technologists understand the detrimental effects of flood stress, to develop newer approaches to mitigate flood stress. The book will help fill in designing new dimensions in the Flood Stress research and development of methods and technologies to overcome the flood-induced losses in crop yield.