Breeding and cultivation techniques of new hybrid rice combination “Keyou 769”

Keyou 769 was a new hybrid rice combination which was combined with “Ke A” and “Nanhui 769”, and had high and stable yield, extensive adaptation, resistance to rice blast, cold environment. And “Keyou 769” was approved by Meizhou City, Guangdong Province in 2013. This paper introduced breeding process, planting performance, characteristics, and summarized its main cultivation techniques and key technical rinks in seed production.