超级杂交稻天优998引种种植表现及高产栽培技术

Introduction of super rice Tianyou 998,its planting performance and high-yielding cultivation techniques

天优998是广东省农业科学院水稻研究所利用优质籼稻不育系天丰A作母本、广恢998作父本配组而成的优质高产三系杂交稻新组合,该组合于2004年2月通过广东省农作物品种审定,2006年通过国家农作物品种审定。柳江县自2006年早造引进种植,表现适应性广、抗病抗倒伏性强、高产优质、熟色好、米质优等特点。其高产栽培要求做好育秧和大田管理,培育适龄壮秧,适时移栽,及时中耕除草,适时收割。

Tianyou 998 is a new three line hybrid combination of good quality and high yield,which has been bred by crossing of good quality indica CMS line Tianfeng A as female parent and Guanghui 998 as male parent.It was registered by Guangdong Committee for Crop Variety Registration in Feb.2004,and National Variety Approval Committee in 2006.Tianyou 998 has been planted in more than 6666.7 ha in Baipeng,Chengtuan,Chuanshan,Jinde,Liyong,Luoman township of Liujiang County,Guangxi（China） since it has been introduced in 2006.It showed the characteristics of wide adaptability,strong disease and lodging resistances,high-yield,good color and grain quality,etc.Its high-yield cultivation techniques require better rice seedling and field management,timely transplanting,cultivating strong seedling,intertillage and weeding operations,harvesting techniques and post harvest management.