우리 나라 野生 차나무(Camellia sinensis L.) 集團의 葉型變異

The Leaf Morphological Variation of Wild Tea Populations in Korea

Thirty-eight wild tea populations were subjected to multivariate analysis for 10 characteristics of leaf morphology. Wild tea plants were distributed in the region from 340 41' north to 360 03' north latitude, but most were grown in the region of350 north latitude. For the ten leaf morphological characteristics, the mean values were 7.83 cm for blade length, 3.28 cm for maximum width, 2.41 cm for blade length/maximum width, 2.76 cm for upper 1/3 width, 2.54 cm for lower 1/3 width ， 1.11 for upper 1/3 width / lower 1/3 width, 0.45 cm for petiole length, 0.1 7 mm for leaf thickness, 18.6 cm 2 for leaf area, and 23 .9 ea. for number of serrations. Nested analysis showed statistically significant differences for the 10 quantitative characteristics among populations as well as among individuals with in populations Contributions of variance between individuals within a population regarding the leaf characteristics, excluding blade length, upper 1/3 width / lower 1/3 width, and number of serrations, were higher than those between populations. Cluster analysis using complete linkage method showed three groups to Euclidean distance 1.9. However, populations that were close geographically did not show a tendency to cluster into the same group. Based on the results of the principal component analysis for morphological characteristics, 3 principal components (PC) appeared to be major variables due to a load ing contribution of84.9%. The first PC was blade length, maximum width, upper 1/3 width, lower 1/3 width, and leaf area, the second was blade length/maximum width and number of serrations, and the third was petiole length.