| 光敏核不育水稻短日照植株的雄性器官和育性异常 |
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| 引用本文： | 张锐 宋家祥. 光敏核不育水稻短日照植株的雄性器官和育性异常[J]. Acta Botanica Sinica, 1999, 41(12): 1317-1322 |
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| 作者姓名： | 张锐 宋家祥 |
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| 作者单位： | 中国农业科学院作物育种栽培研究所!北京100081(张锐，薛光行)，中国农业科学院研究生院!北京100081(宋家祥，蒋希文) |
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| 摘 要： | 采用形态学方法比较观察了 10个水稻 (OryzasatavaL .)雄性核不育系的雄性器官的发育状况 :1)雄性核不育系短日照植株的自交结实率和花粉可育度均显著低于对照 ;2 )程度不同地存在花药开裂和散粉障碍 ,有多寡不等的柱头无任何花粉附着 ,且附着在不育系柱头上的花粉萌发力弱 ;3)胚囊发育状况及异交结实率均未见异常。说明光敏核不育水稻短日照植株自交结实率低下乃因雄性核不育基因表达所致。
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| 关 键 词： | 雄性核不育水稻 雄性育性 短日照 自交结实率 形态学 |
Abnormality in Male Organ Development and Fertility of Photoperiod- sensitive Genic Male Sterile Rice Plants Under Short Day Condition |
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| ZHANGRui XUEGuang_Xing SONGJia_Xiang JIANGXi_Wen. Abnormality in Male Organ Development and Fertility of Photoperiod- sensitive Genic Male Sterile Rice Plants Under Short Day Condition[J]. , 1999, 41(12): 1317-1322 |
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| Authors: | ZHANGRui XUEGuang_Xing SONGJia_Xiang JIANGXi_Wen |
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| Affiliation: | ZHANGRui 1XUEGuang_Xing 2 SONGJia_Xiang 2 JIANGXi_Wen 1 |
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| Abstract: | Tenphotoperiod_sensitivegenicmalesterilerice (PGMSR)lineswerestudiedtoobservethedevel opmentofmaleorgansoftheirshortday (SD)plants .Theresultswereshownasfollows :1)Theselfseed_set tingrateandthepercentageoffertilepollenofthesePGMSRlinesweremuchlowerthanthoseofthecontrols . 2 )Allthemalesterilelineplantshadvariantbarriersinantherdehiscingandpollenscattering .Inaddition , someoftheirstigmasweredevoidofpollen ,andsomeselfpollengrainsontheirstigmasgerminatedweakly . 3)Femalefertilityofthoseplantswasbelievedtobenormalthroughobservationintheirembryosacdevelop mentandcrossseed_settingrate .Theauthorsdeducedthatthemalesterilegeneexpressionbecomesthemajor factorforlowrateofselfseed_settingofPGMSRplantsunderSDcondition . |
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| Keywords: | Genicmalesterilerice Malefertility Shortday Selfseed_settingrate Morphology |
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