优质高产中熟杂交晚稻新组合T优115的选育

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

2001年,用国家杂交水稻工程技术研究中心选育的优质不育系T98A与湖南农业大学选育的优质恢复系R115配组,育成杂交晚稻新组合T优115.该组合全生育期112～114d,单位产量7.5t/hm2左右,主要稻米品质性状达部颁优质米二级以上标准,感稻瘟病和白叶枯病,抗寒性强,适应性较广,于2006年1月通过湖南省农作物品种审定委员会审定,并已向农业部申请植物新品种种权保护.

T you 115, derived from the fine quality CMS line T98A and the fine quality restorer line R 115 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/hm^2 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.