黃槐(Cassia surattensis L.)雄蕊與雌蕊形態變異對結實之影響

dc.contributor.author徐嘉君zh_tw
dc.contributor.author吳俶安zh_tw
dc.contributor.author廖國媖zh_tw
dc.contributor.author郭長生zh_tw
dc.date.accessioned2014-10-27T15:01:44Z
dc.date.available2014-10-27T15:01:44Z
dc.date.issued1999-06-??zh_TW
dc.description.abstract此篇研究以臺南市內整年開花之豆科植物黃槐為材料;選結實率較高的成大校園內植株和結實率較低的校園外東寧路兩旁植株樣本,利用掃描式電子顯微鏡檢(SEM)、花粉活性測試等方法,探討雄蕊與雌蕊形態變異對結實率之影響。結果發現校園內樣本的花瓣化雄蕊出現比率(0.55%)較東寧路樣本(0.34%)為高,但變異花藥的花粉活性並未完全喪失,其花粉不具活性比率校園內樣本(16.7%)也較東寧路樣本(13.7%)為高,其傳粉者- -熊蜂(Xylocopa sp.)在兩地均有觀察記錄;東寧路樣本的雙雌蕊變異程度(15%)遠較校園內樣本(8%)為高,且東寧路樣本較校園樣本的雌蕊容易脫落,其比率分別為42.5%和0%;此外,由SEM可觀察到東寧路樣本的雌蕊有明顯柱頭孔萎縮、阻塞及胚珠發育不良的情形;初步推論,雌蕊的變異和整體品質是影響黃槐結實率的因素之一。zh_tw
dc.description.abstractThe stamen and pistil morphological variation and its effect on seed production in Cassia surattensis L. were compared between plants cultivated at university campus and traffic road-side. The flower morphology was observed by scanning electron microscopy and the viability of pollen was examined by Alexander's stain. The percentage of petaloid stamen and aborted pollen were higher in campus (0.55 %, 16.7%) than road-side (0.34%, 13.7%). The pollinator, Xylocopa sp., was observed frequently at both place. The percentage of di-pistil was higher in road-side (15 %) than campus (8%), in addition, the pistil was easy falling in road-side sample than campus one, and there were a series of problems in pistil of road-side sample, such as. thrinkage or plug of stigmatic orifice and abortion of ovules. The quality of pistil is the major effect on seed production.en_US
dc.identifier9B73437A-C518-90C3-5409-D0D7EEACE3A3zh_TW
dc.identifier.urihttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/6990
dc.language中文zh_TW
dc.publisher國立臺灣師範大學生命科學學系zh_tw
dc.publisherDepartment of Life Science, NTNUen_US
dc.relation34(1),51-57zh_TW
dc.relation.ispartof師大生物學報zh_tw
dc.subject.other黃槐zh_tw
dc.subject.other豆科zh_tw
dc.subject.other掃描式電子顯微鏡檢zh_tw
dc.subject.other花部形態zh_tw
dc.subject.other變異zh_tw
dc.subject.other污染zh_tw
dc.subject.otherCassia surattensisen_US
dc.subject.otherLeguminosaeen_US
dc.subject.otherScanning electron microscopyen_US
dc.subject.otherFloral morphologyen_US
dc.subject.otherVariationen_US
dc.subject.otherPollutionen_US
dc.title黃槐(Cassia surattensis L.)雄蕊與雌蕊形態變異對結實之影響zh-tw
dc.title.alternativeOn the Seed Production and Variation of Flower Morphology in Cassia Surattensis L.(Leguminosae)zh_tw

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