山形大学農学部附属やまがたフィールド科学センターにおけるヤマブドウ在来系統群の果実特性に関する基礎調査

概要

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This study is an investigation of the fruit characteristics of indigenous lines of Japanese wild grape (Vitis coignetiae Pulliat) grown at Yamagata Field Science Center of Faculty of Agriculture, Yamagata University. Eighty-three Japanese wild grape trees were used for our research about sexuality of tree, flowering time, weight and length of fruit clusters, berry weight, Brix, acidity, and anthocyanin concentration of the peel. Forty-seven of the 83 trees were female, and most of them flowered after May 29. The 30 male trees flowered earlier than the female trees. The length and weight of the fruit clusters ranged from 64 to 163 mm and from 7.9 to 116.4 g, respectively, and greatly varied among the trees. The diameter and weight of the berries greatly varied with the lines ranged from 9.4 to 14.5 mm and from 0.8 to 1.9 g, respectively. In particular, line No. 8 showed a very high concentration of anthocyanin, and a high sugar : acid ratio for the processing suitability.
2012-02-15