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水稻两用核不育系渝964S的选育

作  者:
张现伟;李经勇;唐永群;肖人鹏;刘强明;李超明;甘兴友
单  位:
重庆市农业科学院重庆再生稻研究中心
关键词:
杂交水稻;两用核不育系;渝964S;选育
摘  要:
渝964S是重庆市农业科学院利用低不育起点温度不育系Y58S与优质保持系渝802B杂交,然后再与Y58S回交选育而成的迟熟中籼型水稻两用核不育系.该不育系具有不育起点温度低、配合力好、抗病性好、米质较优等特点,2018年通过重庆市技术鉴定.选育的渝两优962、渝两优968已分别进入2019年西南联合体和重庆市区域试验.
作  者:
ZHANG Xian-wei;LI Jing-yong;TANG Yong-qun;XIAO Ren-peng;LIU Qiang-ming;LI Chao-ming;GAN Xing-you;Chongqing Ratooning Rice Research Center,Chongqing Academy of Agricultural Sciences;
关键词:
hybrid rice;;PTGMS line;;Yu 964S;;breeding
摘  要:
Derived from the cross of Y58 S//Y58 S/Yu 802 B, Yu 964 S is a late-maturing indica photoperiod-and thermosensitive genic male sterile( PTGMS) line in rice with low critical sterility-inducing temperature, high combining ability, good disease resistances and good grain quality. It was technically identified by Chongqing Municipality Crop Variety Appraisal Committee in 2018. Its hybrids Yuliangyou 962(Yu 964 S/R132) and Yuliangyou 968(Yu 964 S/R828) were tested in the regional trials of the Southwest Association and Chongqing Municipality in 2019, respectively.

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