The present book entitled Commercial Plant Breeding- 2- Field Crops is in continuation with earlier book Commercial Plant Breeding-1-Vegetable Crops.Part-I of this book contains 11 chapters dealing with basic understanding of Commercial Plant Breeding, RD structure in commercial organizations like private seed companies, field crops seed business, international agricultural research centres working on field crops improvement and a few most pertinent seed related regulations and global status of commercialized GM crops.Part-II of the book deals with commercial plant breeding of 14 major crops of commercial interest with emphasis on genomics, phenomics, field level hybrid seed production and varieties and hybrids having significant acreage from both public and private sectors.The field crops included are rice, wheat, maize, pearl millet, sorghum, pigeonpea, chickpea, green gram, black gram, lentil, soybean, groundnut, rapeseed-mustard and Bt cotton. Besides, there is a comprehensive glossary and updated list of references. The book is intended for wide section of students for courses on commercial field crop breeding and as a useful reference book for the professionals across institutes and seed industries.