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两优628是安徽华韵生物科技有限公司用合肥齐民济生生物技术研究所选育的水稻两系不育系033S与R628配组育成的杂交中籼新组合。2009和2010年参加安徽省中籼区域试验,产量分别为8.993和9.016 t/hm2,分别比对照Ⅱ优838增产6.25%和7.22%,米质各项指标均达到部颁《食用稻品种品质》3级标准,并具有抗病性较强、稳产性好等特点,适宜在安徽省一季稻区推广种植。2012年7月通过安徽省农作物品种审定委员会审定。
Liangyou 628 is a new indica hybrid rice combination developed by Anhui Huayun Biotech Co., Ltd. with 033S and R628 combinations of two-line CMS lines bred in Hefei Qimin Jisheng Biotechnology Research Institute. In 2009 and 2010, they participated in the regional experiment of medium-indica rice in Anhui Province with yields of 8.993 and 9.016 t / hm2, respectively, which increased 6.25% and 7.22% respectively compared with that of the control Ⅱyou 838. All indicators of rice quality reached the “Quality of Edible Rice Variety” 3 standard, and has a strong disease resistance, good stability and other characteristics, suitable for promotion of planting in the first quarter of Anhui Province. July 2012 Approved by Anhui Province Crop Variety Approval Committee.