The text provides a detailed study on principles, methods and practices in plant breeding. It also discusses the applications of biotechnology for crop improvement and seed production of field crops. The book brings forth some innovative concepts and the latest tools and techniques being employed for crop production. It covers researches which shed light on the genetic, physiological and medicinal aspects of field crops. It aims to serve as a valuable reference to biotechnologists, agriculturists and interested readers. The book also aims to outline future researches and challenges in this field.