Breeding of New Three-line Early Indica Hybrid Rice Combination Zhong 9 You 547 with Good Quality and High Yield

Zhong 9 You 547,derived from Zhong 9 A and R547,is a new three-line early indica hybrid rice combination developed by Huanggang Academy of Agricultural Sciences,Hubei.In 2010,it was released for commercialization by Hubei Provincial Crop Variety Appraisal Committee.It is characterized with good grain quality,stably high yield,suitable maturity and high seed yield.However,it is susceptible or highly susceptible to sheath blight,blast and bacterial leaf blight,so it is suitable for growing as an early-cropping rice in the regions with these diseases free or with a slight incidence of them.