This book covers the courses offered in Plant Breeding at Post-graduate level in all Agricultural Universities of India. It includes variety release procedure, categories of improved seed, indian seeds act 2004, protection of plant varieties and farmers’ rights act 2001, DUS testing, seed certification, causes of varietal deterioration, basics of maintenance breeding, genetic basis of maintenance breeding, agronomic basis of maintenance breeding, nucleus seed production of cereals, nucleus seed production of millets, nucleus seed production of commercial crops, nucleus seed production of oilseeds, nucleus seed production of pulse crops, nucleus seed production of fiber crops, nucleus seed production of A, B and R lines and intellectual property rights. Glossary of technical terms has been provided at the end for ready reference of readers. Hope, this book would be useful to the students, teachers and researchers engaged in the teaching and research of Plant Breeding, Genetics and Seed Technology.