茶樹に於ける授精結実に関する研究 : 第 4 報摘花及摘蕾について

概要

論文の詳細を見る
In the present investigation the experiments of the tea-flower (Thea sinensis, L.) thinning and the bud-pinching were made for the purpose of preventing the frnit dropping, as the results that the relation between the flowering period and the fruit dropping were shown in 1957 by the authors. The "Yabukita", one of the varieties previousely used, were available fos the experiment. The flowers after the late of November were omitted from the experiment, because they almost always dropped in this period. The experimental period divided tnto 3 period-1st period is from Sept. 20 to Oct. 10,the 2nd from Oct. 11 to 30,and the 3rd from Nov. 1 to 20. The effects of the both treatments appeared only when the flowers and buds were removed after Oct. 30,as shown in Table 1,2 or Fig. 1,2. The case of bud-pinching may be rather better than the flower-thinning.