早稻温敏核不育系云南高海拔直播繁殖技术  

Direct Seeding Multiplication Techniques of Early Rice TGMS Lines at High Altitude in Yunnan

作　　者：刘晏 肖一龙 于铠源 赵杰 孙榕昊 张章 李文智[4] 符辰建 LIU Yan;XIAO Yilong;YU Kaiyuan;ZHAO Jie;SUN Ronghao;ZHANG Zhang;LI Wenzhi;FU Chenjian(Yuan Longping High-tech Agriculture Co.,Ltd.,Changsha,Hunan 410125,China;Hunan Longping High-tech Seeds Science Academy Co.,Ltd.,Changsha,Hunan 410205,China;Yahua Seeds Science Academy of Hunan,Changsha,Hunan 410119,China;Xinjie Agricultural Comprehensive Service Center of Longyang District,Baoshan,Yunnan 678014,China)

机构地区：[1]袁隆平农业高科技股份有限公司,湖南长沙410125 [2]湖南隆平高科种业科学研究院有限公司,湖南长沙410205 [3]湖南亚华种业科学研究院,湖南长沙410119 [4]隆阳区辛街乡农业综合服务中心,云南保山678014

出　　处：《杂交水稻》2024年第6期77-80,共4页Hybrid Rice

基　　金：湖南省科技创新计划项目(2021NK1001,2022NK1010)。

摘　　要：2023年6月上中旬在高海拔的云南省保山市直播繁殖早稻温敏核不育系株1S和长早S。2个不育系的面积分别为4.83、2.67hm^(2),平均单产分别为4.08、4.28 t/hm^(2),高产田块的单产分别达6.87、7.70 t/hm^(2),且种子外观色泽好,发芽率均在82%以上。实践表明,合理安排好播期和加强田间管理也能达到早籼不育系直播繁殖高产且优质的理想目标,这是常规移栽繁殖之外的一种较好的应急补充方式。总结了早稻温敏核不育系直播繁殖技术。The thermo-sensitive genic male sterile(TGMS)lines of early rice Zhu 1S and Changzao S were multiplied by direct seeding in Baoshan City,Yunnan Province in early and middle June 2023.The area of the two male sterile lines was 4.83 and 2.67 hm^(2),respectively;the average yields were 4.08 and 4.28 t/hm^(2),respectively;and the yields of high-yielding fields were 6.87 and 7.70 t/hm^(2),respectively.The seed appearance color was good,and the seed germination rate was above 82%.The practice shows that reasonable arrangement of sowing time and strengthening field management can also achieve the ideal goal of high yield and quality in direct seeding multiplication of early indica sterile lines,which is a good emergency supplement method in addition to the conventional transplanting multiplication.The direct seeding multiplication technology of early rice TGMS lines was summarized.

关 键 词：早稻 温敏核不育系 直播 繁殖技术 

分 类 号：S511.03[农业科学—作物学] S339