遮陰處理對洋桔梗二次花植株性狀與品質之影響

The Effects of Shading Treatment on the Growth and Quality of Eustoma grandiflorum Second-flowering Spikes

蔡宛育(Woan-Yuh Tsai) ； 陳彥樺(Yen-Hua Chen)

《臺中區農業改良場研究彙報》 120期 (2013/09) Pp. 33-40

摘要

本試驗藉由遮陰方式，探討遮陰處理對洋桔梗三個品種－‘順風綠’、‘鑽石白粉’以及‘牛奶泡芙’二次切花栽培品質之影響。試驗結果顯示其遮陰處理試驗區最高氣溫及最高土溫均低於對照組2～4.8℃。遮陰處理組植株性狀表現較佳，株高提高約8～14 cm，並略為增加分枝數，平均節間長也較對照組長約1～1.5 cm，開花特性方面，二次切花總花朵數遮陰處理組相對高於對照組，增加約2～5朵花。而花梗長度也因遮陰處理光量較對照組弱而增加約1～2 cm。另調查切花採收期，遮陰處理可集中盛花期，並較對照組延後約7日，可作為二次切花產期調節之參考。瓶插表現雖兩組的瓶插壽命無顯著差異，但瓶插前3日花朵開放率以遮陰處理組之切花表現較佳。

關鍵字

洋桔梗 ； 遮陰 ； 二次切花

並列摘要

This experiment was to investigate the effects of shading treatment on the growth and quality of Eustoma grandiflorum 'Voyage green', 'Chou Cream' and 'Diamond Picotee' second-flowering spikes. The results showed that the highest air temperature and soil temperature of shading treatment were 2-4.8℃ lower than that the control one. In shading treatments shown better performance in plant height with 8-14 cm increase, slightly increase in of branch number and the average internode length is 1 to 1.5 cm longer than the control one. As for flowering characteristics, the total flower number of second-flowering spikes was also 2 to 5 more flowers than control onet. However, due to the less light quantity in shading treatment, the peduncle length approximately 1 to 2 cm increase which shown little bit weaker. Shading treatment can condense the blooming period and 7 days delay to start flowering. It can be one of the strategies for production adjustment. The vase-life has no significant difference in two treatments, but the flower blooming rate in the first 3-day of vase period has better performance in shading treatments.

並列關鍵字

Eustoma/Lisianthus ； shading ； second-flowering spikes