薬用植物種子の発芽に関する研究I : ヨロイグサの発芽について

概要

論文の詳細を見る
The germination rate of Angelica dahurica seeds was determined under the constant temperature conditions (10℃, 20℃, 30℃) and alternating temperature conditions (10℃ and 20℃, every 11 h). Effect of light was also examined. 1. Alternating temperature conditions had a highly favorable effect on germination, whereas constant temperature conditions an unfavorable effect. 2. Seeds having not germinated until the 25th day under constant temperature conditions of 10℃ were transferred to two germinators with constant temperatures at 20℃ and 30℃: the latter condition was more effective in breaking the dormancy. 3. Light increased the germinating ratio significantly both under the constant and alternating temperature conditions. 4. Autumn sowing gave a higher germination rate than spring sowing, and the difference was more emphasized in the dark. 5. Low temperature (5℃) treatment for over 12 days or stratification for over one month increased the germination rate, which also shortened the mean days required for germination.
日本生薬学会の論文
1994-12-20