Studies on the Growing Characters of Seedling of Tea Plants : First Raport

[摘要] The auther has investigated morphologically the growth of seedling of nine varieties of tea plants. The seeds were sown in sand beds placed in the light and in the dark respectively. Being grown in the light, the varieties were found to be grouped into three types, according to the growth curve of the seedling, which had some relations to thc character of their mother plants. In the dark, however, each variety showed a special growth curve without regard to the group, and according to these curves we could classify the plant into three kinds viz. Indian, Chinese and Japanese. In the dark, the Indian varieties grew most rapidly, while the Chinese varieties grew slowly, and the Japanese varieties showed intermediate rapidity in the growth curve. The length of the seedlings, about three months after germination; showed also the same relations as mentioned above, either in the light or in the dark. The length and weight ratio of shoot to root varied according to the varieties more considerably in darkness than in light. The transition of the ratio during the seedling growth both in the light and in the dark were also found remarkably different according to the varieties. The anthocyanin were produced in shoots and leaves in almost equal degrees both in light and darkness. The quantity of anthocyanin produced varied conspicuously according to the varieties, and in darkness we could easily discriminate with the naked eye the degree of appearance of anthocyanin in shoots and leaves because of the lack of chlorophyll. Anthocyanin appeared on seedling in relation to the leaf color of its mother plant.

[学科分类] 农业科学（综合）