不同海拔高度變溫處理對春石斛蘭開花之影響

Effects of Different Sea Levels with Shifting Temperature Treatments on Flowering of the Nobile-type Dendrobium Orchid

楊旻憲(Min-Hsien Yang) ； 許嘉錦(Chia-Chin Hsu)

《臺中區農業改良場研究彙報》 129期 (2015/12) Pp. 1-10

摘要

本試驗探討春石斛蘭Dendrobium To My Kids ‘Smile’、Den. Oberon ‘Princess’及Den. Roy Ead Tomoflake等3個品種，於不同海拔高度(2,100、1,260及625 m)變溫處理對花卉品質之影響。由試驗結果顯示Den. To My Kids ‘Smile’於梅峰農場(海拔約2,100 m)處理之花卉品質優於其他地點處理者，總花朵數較多，與其他處理有顯著差異；Den. Oberon ‘Princess’ 於梅峰農場處理者葉片留存數較多，與其他處理有顯著差異；Den. Roy Ead Tomoflake於處理間花卉品質沒有顯著差異；然而花朵大小3個品種皆以春陽農場(海拔約1,260 m)配合生長箱28/18℃(日/夜溫)處理者優於其他處理者。結果顯示Den. To My Kids ‘Smile’品種要提早花期且有較好的花卉品質建議移地栽培於海拔約2,100 m或具較低溫度及較長涼溫期之地區；Den. Oberon ‘Princess’及Den. Roy Ead Tomoflake則移地栽培於海拔約1,260 m即可提早花期並有好的花卉品質，但如要提早至新曆年開花則需移地栽培至海拔約2,100 m。

關鍵字

春石斛蘭 ； 花期調節 ； 涼溫

並列摘要

In order to evaluate the flower quality at different sea levels (2,100, 1,260 and 625 m), shifting temperature treatments were applied on three nobile-type dendrobium cultivars i.e. Dendrobium To My Kids ‘Smile’, Den. Oberon ‘Princess’ and Den. Roy Ead Tomoflake, were under investigation. The results indicated Den. To My Kids ‘Smile’ in Mei-Feng farm (sea levels of about 2,100 m), the flower quality is better than other locations treatment, the total number of flowers are the highest. On Den. Oberon ‘Princess’ in Mei-Feng farm treatment, the remaining leaf No. is significant higher than other treatments. On Den. Roy Ead Tomoflake, the flower quality doesn’t differ among treatments. However, the flower size of three varieties were all larger in Chun-Yang station (sea levels of about 1,260 m) in growth chamber 28/18 °C (day / night temperature) than other sea levels treatments. In conclusion, for Den. To My Kids ‘Smile’ to bloom earlier and have a better flower quality, it is recommended to grow plants at sea levels about 2,100 m or at a lower temperature with longer cooling period. For Den. Oberon ‘Princess’ and Den. Roy Ead Tomoflake, sea levels of about 1,260 m is enough to bloom early and have good quality flowers, but if advanced flowering time at new year is required, treatment at about 2,100 m sea levels is needed.

並列關鍵字

nobile-type dendrobium ； flowering regulation ； cool temperatures