2个三系水稻不育系的生育特性和异交特性研究  

Growth and Outcrossing Characteristics of 2 CMS Lines

作　　者：陈惠清 王天生 谢旺有 黄荣裕 陈锦文 谢少和 余文昌 CHEN Hui-qing;WANG Tian-sheng;XIE Wang-you;HUANG Rong-yu;CHEN Jin-wen;XIE Shao-he;YU Wen-chang(Quanzhou Agricultural Science Institute,Jinjiang,Fujian 362212;Xiamen University,Xiamen,Fujian 361102)

机构地区：[1]泉州市农业科学研究所,福建晋江362212 [2]厦门大学,福建厦门361102

出　　处：《福建稻麦科技》2020年第1期5-8,共4页Fujian Science and Technology of Rice and Wheat

基　　金：福建省科技计划农业引导性项目(2017N0040);福建省作物设计育种重点实验室2018年度开放项目(2018FJCBD01)。

摘　　要：对新育成的水稻籼型三系不育系伍谷A和佳谷A的基本生育特性及异交习性进行初步研究,结果表明:伍谷A和佳谷A的株高比对照谷丰A(CK)矮,单穗颖花数均略高于对照,播始历期分别为70~84 d和72~80 d。2个不育系单穗日开花动态和花时分布情况与谷丰A基本相当,表现为开花高峰期明显,花时集中,午前花率都达80%以上;柱头外露率均高于对照,伍谷A和佳谷A的总柱头外露率分别为79.32%和70.80%,但包颈程度和柱头活力持续时间较为不理想。Preliminary study on growth and outcrossing characteristics of indica CMS lines Wugu A and Jiagu A was conducted,results showed that plant height were lower than that control Gufeng A,spikelets per panicle were higher than control,the duration from seeding to heading were 70~84 d and 72~80 d respectively.The daily flowering dynamic and anthesis time were same as control,the peak of florescence was obvious,80%spikelete opening before noon and concentrated flowering.The stigma exsertion rate of Wugu A and Jiagu A was 79.32%and 70.80%,higher than that of control,panicle enclosure length and stigma vigor duration was not good.

关 键 词：水稻 三系不育系 柱头活力 生育特性 异交习性 

分 类 号：S511.038[农业科学—作物学]