ゲンノショウコGeranium thunbergiiの栽培と育種(第3報) : ゲンノショウコの生育におよぼす温度の影響

概要

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Temperature is an important environmental factor for the growth of plants. In this paper, the effect of temperature on the growth and the tannin content of Geranium thunbergii was studied. The plants were cultivated in three Biotron growth cabinets whose day time/night time temperatures were controlled at 35℃/30℃, 25℃/20℃, and 15℃/10℃. [day time was from 06:00-18:00 hr and night time from 18:00-06:00 hr] The final viability was the lowest at the highest temperature (35℃/30℃) condition. The length of the stem tended to be shorter at higher temperature conditions. The dry weight of the aerial parts of the plants was lower when the plants were grown at higher temperatures, while the tannin content was higher in the plants grown at lower (15℃/10℃) temperatures. These results showed that this plant grew better and contained more tannin when grown at the 15℃/10℃ temperature condition. Therefore, this experiment suggested that the plants should be cultivated in cooler conditions to obtain better results, or to obtain G. thunbergii plants of better quality in better yields.
日本生薬学会の論文
1991-03-20