优质高产晚籼杂交水稻新组合美优622的选育及应用

Breeding and Application of Late Indica Hybrid Rice Meiyou 622 with High Yield and Good Quality

为提升华南双季稻作区晚季感光型水稻品种的质量,广西农业科学院水稻研究所以自育不育系美A与优良恢复系桂622配组育成优质高产晚籼杂交水稻新组合美优622。该品种在2013年、2014年广西桂南稻作区感光组区域试验中平均产量分别为8.07t/hm2和7.83t/hm2,比对照品种博优253分别增产7.37%和8.75%;2014年广西桂南稻作区感光组生产试验中平均产量为8.17t/hm2,比对照品种博优253增产9.30%。2015年6月通过广西农作物品种审定委员会审定(桂审稻2015023号)。美优622熟期适中,产量高,米质达NY/T 593-2013《食用稻品种品质》优质2级标准,适合桂南稻作区晚稻种植。

Meiyou 622,a new late indica hybrid rice combination with good quality and high yield,bred from sterile Mei A×good restorer Gui 622 by Rice Research Institute,Guangxi Academy of Agricultural Sciences was approved by Guangxi Crop Variety Approval Committee in June,2015(Guishendao 2015023)to improve the quality of late season photosensitive hybrid rice varieties in South China double rice cropping region.The average yield of Meiyou 622 in Guangxi regional tests in 2013 and 2014 is 8.07 t/hm^2 and 7.83 t/hm^2,7.37%and 8.75%higher than CK(Boyou 253)respectively.The average yield of Meiyou 622 in Guangxi production test in 2014 is 8.17 t/hm^2,9.30%higher than CK(Boyou 253).Meiyou 622 with the advantages of suitable maturity,high yield and the secondary standard of NY/T 593-2013(Cooking Rice Variety Quality)can be planted for late rice in South Guangxi rice cropping region.