登熟中の空気湿度が切り離したアルサイク・クローバー (Trifolium hybridum L.) の結実率及び発芽率に及ぼす影響

抄録

Stems bearing freshly open-pollinated flowers were gathered from plants growing in the pots. They were then removed to the laboratory, any withered lower leaves were removed. The stems were placed in a glass container holding about 50 cc of 1% glucose solution. All wilted or unopened florets were removed. The glass containers were covered with bell jars and dry and wet atmospheres which pass through the gas washing bottles holding sulfuric acid and water were continually induced in the bell jars at the rate of 700 to 1, 400 cc a minute. When the heads were ripe, the seeds were removed and counted, and the germination tests were carried out 3, 8 and 11 months after harvesting. In this experiment, atmospheric humidity did not significantly affect the setting of alsike clover seed. The seeds produced under dry atmospheres were significantly higher in the percentage of germination, than those produced under wet atmospheres. The germination percentages of seed were significantly increased as the days after harvesting increased in two cases.