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題名 | Comparison of Upper Floret Development in Bisexual and Male Spikelets of Thuarea Involuta (Gramineae) with Scanning Electron Microscopy=芻蕾草兩性及雄性小穗的上位小花發育之比較 |
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作者 | 郭長生; 蕭莉琴; 廖國媖; Kuoh, Chang-sheng; Hsiao, Li-chin; Liao, Gwo-ing; |
期刊 | Taiwania |
出版日期 | 19980900 |
卷期 | 43:3 1998.09[民87.09] |
頁次 | 頁235-245 |
分類號 | 434.111 |
語文 | eng |
關鍵詞 | 掃描式電子顯微鏡; 小穗; 發育; 芻蕾草; 禾本科; Development; SEM; Spikelet; Thuarea involuta; Gramineae; |
中文摘要 | 芻蕾草花序由3-7個小穗組成,於一佛焰苞內排成穗狀。除了基部之一小穗為兩性的上位小花和雄性的下位小花組成之外,所有小穗之兩小花均為雄性。經由掃描式電子顯微鏡技術比較各小穗之上位小花,結果顯示雌蕊發育受阻是造成上位小花雄性之主因。 |
英文摘要 | The inflorescences of Thuarea involuta (Forst.) R. Br. ex R. & S. are composed of 3-7 spikelets in a spatheate spike. The spikelets have two florets. All of them are male, except that the basal spikelet has a bisexual upper floret and a male lower floret. A comparative study on the upper florets of the bisexual and male spikelet by SEM showed that the arrest of the development of gynoecium causes the maleness of the upper florets. |
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