Maximum crop productivity is only possible to be established when a comprehensive understanding of the physiology of crops is well understood. Crop scientists, breeders, agronomists, agronomy administrators in agro-industry, educators, and upper-level undergraduate and graduate students must read this book. This book provides fundamental aspects of crop physiology and makes easier to develop of particular cultivar or and to cope the dynamic environmental changes. This valuable reference presents a wide range of information and references, provides a discussions parts in each chapter. It is easy to understand since topic explanations are also supported by figures and tables.