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KMID : 1098419970050030177
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Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 3 p.177 ~ p.185
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Physioecological Characteristics and Phylogenetic Relationships Based on Multivariate Analysis on Colocasia antiquorum Schott
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Choi Kyeong-Gu
Yoo Nam-Hee
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Abstract
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Twenty-four major ecological and physiolosical characters of the 54 accessions of taro(Colocasia antiquorum) were observed in the growing seasons of 1995 and 1996 in Ch{breve{o}}nju, Korea. The average days to emergence of the 54 accessions were 21.7 and the accession which had the shortest days to emergence was Kurye #2. Petiole color of most accessions was green, except Ich{breve{o}}n #1, Iri #1, Puan #1 and Taiwan #1 which had purple petioles. All the accessions had cormels except Taiwan #1 which had long runners without cormels. Average yield of the accessions was 3,719 kg/10a and total carmel weight, average carmel number, average carmel and average corm weight were 787g/plant, 39.2/plant, 20.3g/cormel, and 263.6g/plant, respectively. Accessions Ch{breve{o}}ngju #1 and Wanju #1 showed superiority in the three important characters, total carmel weight/plant, average carmel weight, and corm weight. Multivariate analysis for the 24 characters indicated that petiole color and carmel type had relatively higher coefficient of variation, 56.8 and 44.4 %, respectively. Fifty four taro accessions could be classified into 11 groups with D({sqrt{D^{2}}) value of 110 on the basis of phenotypical characteristics. Most accessions were inclued in Group II. The Group I in which Taiwan #1 was included was genetically the most distant from the other groups. Accessions with purple petioles were grouped into the three different subgroups in which green petiole accessions were not included, indicating high dissimilarity between the different petiole color accessions. All the accessions grouped into the Group VIII, Ch{breve{o}}ngju #1, Wanju #1, Wanju #3, and Taech{breve{o}}n #2, had higher bioogical yield. Some accessions collected from the same district showed a high dissimilarity by being classified into the different subgroups.
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KEYWORD
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Taro, Colocasia antiquorum, Accessions, Multivariate analysis, Phylogenetic relationships
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