- 期刊
- OpenAccess
巴克素及萘乙酸處理對盆栽玉蘭花生育與開花之影響
Effect of Paclobutrazol and NAA on the Growth and Flowering of Potted White Michelia (Michelia alba DC.)
摘要
本試驗分別以0、100、200、400及800 ppm巴克素（Paclobutrazol）溶液100 ml進行盆內土壤灌注及以100 ppm之萘乙酸（1-naphthylacetic acid, NAA）溶液全株葉面噴施，探討對玉蘭花盆栽生育與開花之影響，期能提高盆花觀賞品質。試驗結果顯示，不同濃度的巴克素處理盆栽玉蘭花，其株高、節間長度與花瓣長度均隨處理濃度增加而有明顯降低的趨勢，開花數、亞主枝及側芽數則隨處理濃度增加而增加，其中以400－800 ppm的巴克素處理對盆栽玉蘭花之觀賞品質較佳。以100 ppm之NAA處理使株高明顯降低，節間長度、花瓣長度、亞主枝及側芽數則明顯增加，NAA處理對開花數影響不顯著。
並列摘要
The effects of paclobutrazol and NAA on growth and flowering of potted white michelia (Michelia alba DC.) were studied. The treatments included a single-drench with 0-800 ppm paclobutrazol solution and leaf-spraying with 0, 100 ppm of NAA solution. Plant height, length of internodes and length of petals decreased, but the number of flowers, the sub-main branches and side branches increased as the concentration of paclobutrazol increased. The treatment of paclobutrazol with 400-800 ppm was suggested to promote the visual quality of potted michelia in the trial. Plant height was shorted with 100 ppm NAA treatment than the control. Flower number did not differ between 0 and 100 ppm NAA treatments. The length of internodes and petals, number of sub-main branches and side branches were increased by 100 ppm NAA treatment.