This document provides information about breeding techniques used in maize. It discusses techniques like mass selection, ear-to-row selection, progeny row selection, hybridization techniques including single cross, three-way cross and double cross hybrids. It also mentions popular varieties developed using recurrent selection like Kisan, Jawahar, Vikram, Sona, Vijay and Amber. The document highlights the importance of maize as one of the major cereals and discusses breeding objectives like increased yield, resistance to pests and diseases, and higher protein and oil content.