广适型优质超级杂交稻隆两优华占的选育与应用

Breeding and Application of Super Hybrid Rice Longliangyou Huazhan with Good Quality and Wide Adaptability

隆两优华占系湖南亚华种业科学研究院用自育的隆科638S与中国水稻所选育的强恢复系华占配组而成的两系杂交籼稻新组合。该组合高产稳产、抗病抗逆、广适、品质优良,2015—2017年相继通过了长江上游中籼、长江中下游中籼、华南晚籼、武陵山区中籼等4个区域的国家审定及湖南、江西和福建等省级审定。2017年被农业农村部认定为超级稻品种,2019年被国家"863"计划"绿色超级稻新品种选育"重大项目总体专家组认定为绿色超级稻。2016—2018年累计推广面积53万hm2,2017、2018年年种植面积分别列全国杂交水稻品种第2位和第3位,展现了其广阔的应用前景。

Longliangyou Huazhan,derived from Longke 638 S(a TGMS line developed by Hunan Yahua Seed Industry Scientific Research Institute)and Huazhan(a restorer line developed by China National Rice Research Institute),is a new two-line indica hybrid rice combination developed by Hunan Yahua Seed Industry Scientific Research Institute.With the characteristics of high and stable yield,strong disease and stress resistances,wide adaptability and fine grain quality,Longliangyou Huazhan was registered and released for commercial production provincially in Hunan,Jiangxi and Fujian and nationally as medium indca rice in the area of the upper,middle and lower reaches of Yangtze River and Wuling Mountains,as late indica rice in the area of south China,from 2015 to 2017.In 2017,it was designated as a super rice variety by the Ministry of Agriculture and Rural Affairs,and in 2019,it was identified as a green super rice variety by the"Breeding Program of New Green Super Rice Varieties"of the"863"national project.The cumulative planting area of Longliangyou Huazhan was 530000 hm2 from 2016 to 2018,and its annual planting area ranked the 2 nd and 3 rd nationally among hybrid rice varieties in 2017 and 2018,respectively,revealing an extensive application prospect of the variety.