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題 名 | 臺灣百慕達草主要引進品種之性狀調查及遺傳連鎖群分析=Morphological Traits and Cluster Analysis of the Major Introduction Bermudagrass Cultivars in Taiwan |
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作 者 | 劉怡君; 林深林; | 書刊名 | 興大園藝 |
卷 期 | 22:1 1997.06[民86.06] |
頁 次 | 頁75-94 |
分類號 | 377.2124 |
關鍵詞 | 百慕達草; 性狀特徵; 連鎖群分析; Bermudagrass; Morphological traits; Cluster analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 本試驗以引進品種的百慕達草(Cynodon dactylon)為材料,其目的在建立百慕達 草的外觀性狀以及使用連鎖群分析來鑑別栽培種親緣。百慕達草各個品種的性狀調查,參考 禾草類的分的類標準,根據外的葉耳、葉舌、葉領邊緣纖毛、葉面及葉背茸毛以及莖的顏色 、株型大小、莖葉質地和高度等性狀,建立 16 種百慕達草品種外觀性狀的詳細資料;由性 狀連鎖群分析可將所有品種分為三型,即普通型(25cm以上)、半矮生型(15~25cm)及矮生型 (25cm 以下 )。各型百慕達草在長時間的生長調查中,對環境變化有不同的反應,以矮生型 及半生型的品種內及品種間整齊度較為一致,而普通型百慕達草,在品種間及品種內的生長 都不整齊。以性狀外觀資料,加上長期測量的莖葉長度、寬度值,進行性狀的連鎖群分析, 可將所有百慕達草品種區分為三個彼此有差異的性狀連鎖群,此一分群,與百慕達草的高度 性狀有明顯的符合。但群內只有 N1 及 Tifway 品種能由外觀分辨,而其餘品種,都借明顯 的外觀特徵可資辨別。 |
英文摘要 | The introduced bermudagrass cultivars were used as material in the study, the goals for this experiment are to build up a database for bermudagrass morphological characters, and use the data for cluster analysis to construct relationship data between cultivars. The morphological traits were measured based on the categories for Cramineae grasses. Both qualitative and quantitative characters including:lingual, hairs on the edges of collar, pubescence on leaf and on leaf back, stem color, plant height, texture of the leaf and the canopy of the grass were used to describe the characteristics of 16 bermudagrass collected. We quantified those qualitative characters then added up with the quantitative characters for similarity cluster analysis. With the cluster analysis, 16 bermudagrass cultivars were separated into three groups:common (>25cm),dwarf(<15cm), or semi-dwarf(15~25cm). There were difficult responses for environment change in each type of bermudagrass in long growing period. Both dwarf and semi-dwarf types bermudagrass grouting is more regularity than common type bermudagrass. Both quantitative and quantitative morphological traits used for cluster analysis, 16 cultivars were easily categorized into three types groups, the result just correspond with height trait. But only N1 and Tifway can be distinguished by morphological features in all group, others cultivars can not be distinguished individually. |
本系統中英文摘要資訊取自各篇刊載內容。