Breeding of T You 115 A New Medium-Maturing Late Hybrid Rice Combination with Good Grain Quality and High Yield

T you 115,derived from the fine quality CMS line T98A and the fine quality restorer line R115 bred from the crossing of the fine quality restorers line R288 and En Hui 58,is a new medium-maturing late hybrid rice combination.It has a growth duration of 112 days to 114 days.Its yield is 7.5 t/hm2 or so and its quality has reached the 2nd class of good grain quality standard set by the Agriculture Ministry,P.R.C.In spite of its liability to the rice blast and the bacterial leaf blight of rice,it has strong cold tolerance and wider adaptability.It has been approved for release by the Crops Cultivar Appraisal Commission of Hunan Province in January 2006,and has applied to Ministry of Agriculture for protection on the right of new plant breed variety.