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Studies on Morphological Variation Among Provenances of a Rare Rhododendron micranthum in Korea  

Kim, Nam Young (College of Forest Sciences, Kangwon National University)
Kim, Heung Sik (College of Forest Sciences, Kangwon National University)
Kim, Sol Young (College of Forest Sciences, Kangwon National University)
Park, Wan Geun (College of Forest Sciences, Kangwon National University)
Publication Information
Journal of Korean Society of Forest Science / v.95, no.1, 2006 , pp. 55-59 More about this Journal
Abstract
The objectives of this study, an analysis of the morphological characteristics among six provenances of a rare Rhododendron micranthum could be used for the conservation of gene resources and could provide information on superior trees selection. The following results were obtained. Approximately Mt.worak region showed larger values at petal character. On the other hand, Bonghwa region showed smaller values at petal character. Yeonha-ri region showed larger values at leaf character. On the other hand, Bonghwa region showed smaller values at leaf character. The results of principal component analysis (PCA) for morphological characteristics showed that the first for principal components(PC's) explained 41.6% of the total variation. From th third PC explained 81.5% of the total variation. The first PC was correlated with those characteristics that were mainly related to the Petal length (PL), Leaf length (LL) width (LW), Stigma length (SL). The second PC was correlated with the Petiole length (PTW), Anther length (AL). The third PC was correlated with the Flower pedicel length (FPL), Filament length (FL). Therefore, these characteristics was important to analysis of the variation for morphological characteristics among provenances of Rhododendron micranthum. Cluster analysis using single linkage method based on morphological characteristics showed that six provenances of Rhododendron micranthum could be clustered into three groups. Group I is Jicdong-ri, Group II is Mt.worak and Yeonha-ri, and Group III is Taeback, Bonghwa, and Samcheok. These results corresponded well with that of principal component analysis.
Keywords
Rhododendron micranthum; morphological variation; rare plant;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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