摘要
本試驗為了探討電照處理對蟹爪仙人掌（Zygocactus truncata）開花之影響，乃自74年9月23日起將材料移入電照處理區，分別予以50天、60天、71天及81天等四種長日處理，長日處理結束後則移入自然短日下使其開花。經調查結果顯示，每日下午11:00至次日凌晨1:30，以120~150 lux之光照強度進行電照2.5小時，可完全抑制花芽分化。各電照處理植株之莖頂數因營養生長時間延長而較自然日照者增加。若移入短日照下則約74~83天可開花。
關鍵字
無資料並列摘要
These experiments are to study the effects of lighting on flowering of Zygocactus truncata. Plants were grown under long day condition by lighting during the night since September 23, 1985. After treated for 50, 60, 71, and 81 days, 10 plants were transfered at each different stage to natural short day condition for flowering. The observation results reveals that: flower initiation were completely Inhibited by 2.5 hours daily lighting treatment, from 11:00 PM to 01:30 AM, at light intensity of 120 to 150 lux. It took 74 to 83 days to flower after transfered from the long day to short day condition. In the mean time, the numbers of the phylloclades tips of the lighting treated plants are increased because the vegetative growth period were prolonged by lighting.
並列關鍵字
無資料延伸閱讀
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