Breeding of New Japonica-indica Hybrid Rice Combination Chunyou 59

摘要

Chunyou 59 is a japonica-indica hybrid rice combination developed from Chunjiang 16A（a late japonica CMS line with dwarfness and early anthesis time）and CH59（an indicaclinous wide compatibility restorer line）.It has the characteristics of strong heterosis,strong stem,good lodging resistance,large panicles,good cold tolerance,high yield and wide adaptability.It was registered and released by Jiangxi Provincial Crop Variety Appraisal Committee in March 2009.The breeding procedure,characteristics,major techniques of cultivation and seed production of Chunyou 59 were introduced in the paper.