粟の開花誘起に関する実驗 (予報)
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概要
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1) The experiments were made with the view to find some means to induce the blooming of Italian millet at any desired time. 2) The plants which have finished the blooming in a given day, can not bloom in the next day, unless they will be kept for several hours in higher temperature. 3) Most of the flowers attain the condition enabling the blooming, within a few hours after the plants are transfered to lower temperature. 4) The main motive to induce the actual blooming of flowers that are fully prepared for it is the rising of temperature. But the blooming occurs also in a lower temperature when kept for a longer period, after the descent of higher temperature. 5) If the temperature becomes higher soon after the descent of it, the blooming of flowers does not occur simultaneously. 6) In the case where the higher temperature is 30℃ and the lower 17℃, the desired duration of the higher temperature for preparing the blooming is more than ca. 6 hours. Most of the flowers attain the condition enabling to bloom within 4〜5 hours after transfering the plants to the lower temperature. So that, if the temperature is rised again at this period, the blooming occurs more prosperously and more simultaneously compared with the natural blooming. 7) Therefore, in order to induce the blooming at any desired time, the Italian millet plants must be treated with the method adove described, beginning at least 10 hours before the desired time. 8) It seems that both the light and the humidity have not much effect on the blooming. 9) In view of these facts, the chief environmental factor which determine the time of daily blooming of this plant, must be the periodical changes of the air temperature.
- 日本作物学会の論文
- 1952-07-20