Crop Physiology: The Science of Agronomy presents an in-depth exploration of crop physiology and agronomy, emphasizing the scientific principles that govern crop growth, development, productivity, and quality. It integrates physiological processes with agronomic practices and environmental interactions, focusing on how genotype, environment, and management (G×E×M) interplay to influence crop performance and sustainable food production. It also addresses the impacts of climate change on agriculture and the adaptations needed to ensure global food security.