强秆大穗水稻高配合力恢复系R2172的选育与应用

Breeding and Application of High Combining Ability Restorer Line R2172 with Strong Stalk and Large Panicle Rice

R2172是以自育优良品系1329(农香16×扬稻6号F_(4))为母本,与泰丰占杂交,经5年10代系统育种选育而成的优良两系杂交水稻恢复系。该恢复系具有强秆抗倒、大穗、高配合力、易制种等特点,用其与母本新强01S配组育成杂交水稻新组合欣两优2172,于2018年通过国家农作物品种审定委员会审定,2020年10月获得农业部植物新品种保护。

R2172 is a good restorer line of twoline hybrid rice,which was bred by crossing self bred line 1329(Nongxiang 16×Yangdao 6 F_(4))with Taifengzhan for 5 years and 10 generations.R2172 restorer line has the characteristics of strong strong stalk,lodging resistance,large panicle,high combining ability and easy seed production.The new hybrid rice combination Xinliangyou 2172 was bred by R2172 and Xinqiang 01S.It passed the approval of the National Crop Variety Approval Committee in 2018,and obtained the protection of new plant varieties of the Ministry of Agriculture in October 2020.