长江中下游稻区国审两系杂交早稻组合特性分析  

Analysis on Characteristics of the Nationally Approved Two-line Early Hybrid Rice Combinations in the Area of the Middle and Lower Reaches of the Yangtze River

作　　者：邓飞 陆爱国 周建霞 王孔俭 DENG Fei;LU Aiguo;ZHOU Jianxia;WANG Kongjian(Jinhua Academy of Agricultural Sciences,Jinhua,Zhejiang 321051,China)

机构地区：[1]金华市农业科学研究院,浙江金华321051

出　　处：《中国稻米》2023年第3期80-83,87,共5页China Rice

基　　金：金华市农业类重点项目(2019-2-005);金华市主动设计项目(2020-2-001b);国家水稻产业技术体系(CARS-01-70);浙江省农业(水稻新品种选育)新品种选育重大科技专项(2021C02063-3;2021C02063-4)。

摘　　要：分析了2003—2022年长江中下游稻区通过国家审定两系杂交早稻组合的特征特性。2003—2022年,长江中下游稻区有46个两系杂交早稻组合通过国家审定,其中早中熟类型26个,迟熟类型20个;早中熟类型组合区试平均产量为508.91 kg/667 m^(2),迟熟类型组合为515.89 kg/667 m^(2),近年通过审定组合的区试产量更高;组合优质达标率仅为10.87%,对稻瘟病和白叶枯病抗性达到中抗及以上水平组合占比分别为15.22%和4.35%;列入全国农作物主要品种推广情况统计组合29个。截至2019年,有18个组合的推广面积超过6.67万hm^(2),4个组合的推广面积超过33.34万hm^(2),2个组合的推广面积超过66.67万hm^(2)。The characteristics of the nationally approved two-line early hybrid rice combinations in the area of the middle and lower reaches of the Yangtze River from 2003 to 2022 were analyzed in this paper.46 two-line early hybrid rice combinations(26 early-medium ripening combinations and 20 late ripening combinations)had been approved by the national crop variety approval committee of China in the area.The average yields of regional test of early-medium ripening combinations and late ripening combinations were 508.91 and 515.89 kg/667 m^(2),respectively.The regional test yield with approved combinations in recent years was higher.The high-quality compliance rate of the combinations was only 10.87%,and the proportions of the combinations which showed moderately resistant to rice blast and bacterial blight were 15.22%and 4.35%,respectively.29 combinations were included in the national promotion statistics of major crop varieties.Up to the end of 2019,18 combinations were extended in more than 66700 hm^(2),4 combinations were extended in more than 333400 hm^(2),and 2 combinations were extended in more than 666700 hm^(2).

关 键 词：长江中下游稻区 两系杂交早稻 产量 品质 抗性 推广面积 

分 类 号：S511[农业科学—作物学]