湘南地区再生稻品种比较研究  

Comparative Study on Different Ratoon Rice Varieties in Southern Hunan

作　　者：吴辉 王明 李婷 WU Hui;WANG Ming;LI Ting(Agriculture and Rural Bureau of Lingling District,Yongzhou 425100,PRC;Hunan Hybrid Rice Research Center,State Key Laboratory of Hybrid Rice,Changsha 410125,PRC;Agriculture and Rural Bureau of Yongzhou City,Yongzhou 425000,PRC)

机构地区：[1]零陵区农业农村局,湖南永州425100 [2]湖南杂交水稻研究中心,杂交水稻全国重点实验室,湖南长沙410125 [3]永州市农业农村局,湖南永州425000

出　　处：《湖南农业科学》2024年第12期13-17,共5页Hunan Agricultural Sciences

基　　金：湖南省现代农业水稻产业技术体系专项(湘农财指[2019]263号)。

摘　　要：为筛选适宜湘南地区推广的高产优质再生稻品种,2023年在永州市农科所对泰优390、Y两优9918、荃优粤农丝苗、深两优475和晶两优华占进行品种比较试验。结果表明:5个供试品种头季稻均在8月20日以前成熟,再生稻均在9月20日前齐穗。其中,深两优475头季、再生季及两季总产量均最高,分别为9442.5、4878.6、14321.1 kg/hm^(2);晶两优华占、深两优475再生力较高,分别为1.34、1.23。5个品种再生稻稻米透明度差异不显著,泰优390、深两优475和荃优粤农丝苗糙米率分别为79.5%、79.4%和78.8%;泰优390、深两优475、荃优粤农丝苗整精米率分别为62.3%、59.7%、62.1%,品种间稻米透明度及长宽比差异不大。5个品种均适宜在湘南地区作再生稻种植,深两优475最优。To screen high-yield and high-quality ratoon rice cultivars suitable for promotion in southern Hunan,Yongzhou Institute of Agricultural Sciences compared the production performance of'Taiyou 390','Y Liangyou 9918','Quanyou Yuenongsimiao','Shenliangyou 475',and'Jingliangyouhuazhan'in 2023.The results showed that first-season rice of all the five cultivars was harvested before August 20,and the ratoon rice was in full heading before September 20.The yields of the first-season rice,ratoon rice,and two seasons of'Shenliangyou 475'were the highest,reaching 9442.5,4878.6,and 14321.1 kg/hm^(2),respectively.The regeneration capacities of'Jingliangyouhuazhan'and'Shenliangyou 475'were high,reaching 1.34 and 1.23,respectively.There was no significant difference in ratoon rice transparency among the five cultivars.The brown rice rates of'Taiyou 390','Shenliangyou 475',and'Quanyou Yuenongsimiao'were 79.5%,79.4%,and 78.8%,respectively.The head rice rates of'Taiyou 390','Shenliangyou 475'and'Quanyou Yuenongsimiao'were 62.3%,59.7%and 62.1%,respectively.The ratio of length to width and rice transparency had no significant difference among the five rice cultivars.All the five rice cultivars,especially'Shenliangyou 475',were suitable for ratoon rice cultivation in southern Hunan.

关 键 词：头季稻 再生稻 产量 再生力 稻米品质 湖南 

分 类 号：S511[农业科学—作物学]