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Y两优19水稻是湖南隆平种业有限公司、湖南杂交水稻研究中心选育的两系杂交一季晚籼稻。2008年通过湖南省审定(编号为2008033),适宜在湖南省作一季晚稻栽培。
Y Liangyou 19 is a two-line hybrid late-season indica rice selected by Hunan Longping Seed Co., Ltd. and Hunan Hybrid Rice Research Center. In 2008 through the Hunan Province validation (No. 2008033), suitable for a quarter of late rice cultivation in Hunan Province.