耐低温淹水发芽的水稻不育系神9A选育与应用

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英文篇名：Breeding and Application of CMS Line Shen 9A with Ability to Germinate under Conditions of Low-temperature and Flooding in Rice 作者：王楚桃 ; 李贤勇 ; 何永歆 ; 蒋刚 ; 朱子超 ; 欧阳杰 ; 黄乾龙 ; 管玉圣 ; 郭爽 ; 熊英 英文作者：WANG Chu-tao;LI Xian-yong;HE Yong-xin;JIANG Gang;ZHU Zi-chao;OUYANG Jie;HUANG Qian-long;GUAN Yu-sheng;GUO Shuang;XIONG Ying;Chongqing Academy of Agricultural Sciences;Chongqing Zhongyi Seed Co.Ltd.; 关键词：杂交水稻 ; 不育系 ; 神9A ; 耐低温淹水 ; 发芽 ; 选育 英文关键词：hybrid rice;;CMS line;;Shen 9A;;tolerance of low temperature and flooding;;germination;;breeding 中文刊名：ZJSD 英文刊名：Hybrid Rice 机构：重庆市农业科学院;重庆中一种业有限公司; 出版日期：2018-12-12 17:40 出版单位：杂交水稻 年：2019 期：v.34;No.194 基金：国家重点研发计划(2017YFD01002);; 重庆市社会事业与民生保障科技创新专项;; 激励引导专项项目(cstc2017jxjl80052,cstc2016shms-ztzx80008) 语种：中文; 页：ZJSD201901006 页数：3 CN：01 ISSN：43-1137/S 分类号：26-28

摘要

神9A是重庆市农业科学院与重庆中一种业有限公司用自育保持系Q2B与广东优质抗稻瘟病材料余航丝苗杂交,从F3代中选择优良单株与野败型胞质不育系Q2A杂交后回交转育而成的籼型三系不育系,2016年8月通过重庆市技术鉴定。该不育系具有异交习性好、米质优、耐低温淹水发芽、感光抑制、抗稻瘟病的特点。用该不育系配组育成的杂交中籼新组合神9优25和神9优28分别于2017和2018年通过重庆和广西品种审定。
        Shen 9 A, derived from crossing Q2 A, a WA-type CMS line, to the single plants selected from the F3 generation of Q2 B/Yuhansimiao(a breeding material with fine grain quality and blast resistance from Guangdong), is a new WA-type indica CMS line in rice, developed by Chongqing Academy of Agricultural Sciences and Chongqing Zhongyi Seed Co.,Ltd. through the sucessive backcrossing method. With the characteristics of good outcrossing habits,fine grain quality, ability to germinate under the conditions of low temperature and flooding, photosensitivity inhibition and blast resistance, it was technically identified by Chongqing Crop Variety Appraisal Committee in August, 2016. Its medium indica hybrid combinations Shen 9 You 25(Shen 9 A/Q Hui 25) and Shen 9 You 28(Shen 9 A/Q Hui 28) were registered and released to commercial production in Chongqing in 2017 and Guangxi in 2018, respectively.

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