杂交晚籼新组合“I特优3381”的选育与应用

Breeding and application of new late indica hybrid rice Combination Iteyou3381

I特优3381是福建省龙岩市农业科学研究所用不育系I龙特甫A作母本,新恢复系龙恢3381作父本杂交配组育成的杂交晚籼新组合。该组合具有米质较优,高产,稳产,生育期适中,适应性广等特点。2003-2004年经福建省晚稻新品种区域试验,2a平均产量471.89kg/667㎡,比对照汕优63增产6.03%,达到显著水平。全生育期129d。2006年1月通过福建省农作物品种审定委员会审定。介绍了其选育过程、特征特性、栽培及制种技术要求。

Iteyou3381 ,developed from the fine quality CMS line Ilongtepu A as the female parent and the new restorer line Longhui3381 as the male parent by the Institute of Agricultural Science of Long/an,is a new three-line indies hybrid rice combination for late cropping season.It has the oharacteristics of good grain quality, high and stable yield, suitable maturity and wide adaptability.It had a yield of 471.89kg/667m^2 on average,6.03% higher than that of the check hybrid Shanyou63,in two years （2003-2004）of Fujian Regional Trials.It was registered and released by the Crop Variety Approval Committee of Fujian in January,2006.The breeding procedure of Iteyou3881 and its major characteristics, cultivation and hybrid seed production techniques are introduced in this paper.