本研究探討榖胱甘肽對文心蘭生長及開花品質之影響。結果顯示經12 週處理後，以5 mM 榖胱甘肽處理者有最大之葉面積、假球莖厚度、寬度、高度及周徑，其次為2 mM處理者，而0 和10 mM 處理組間無顯著差異。處理6、10 及14 週後之葉片SPAD 值，皆以5 mM 處理者最高，其次為2 mM 處理者，而0 和10 mM 處理間無顯著差異。處理6 週後之抽梗率以5 mM 處理者最高，其次依序為2 mM、0 mM 及10 mM 處理組。至14週後之開花率亦以5 mM 處理者最高、其次為2 mM 者，而10 mM 處理則與照組無顯著差異。開花品質亦以5 mM 處理者有最大之花梗數及花序長度、花梗分枝數、小花朵數以及花徑，其他3 個處理間則差異較小或無顯著差異。10 mM 處理者雖然地上部之營養生長及開花品質與對照組相近，但是根系生長受抑制。本研究顯示每二週以5 mM 穀胱甘肽處理一次共10 次，可促進文心蘭苗之營養生長，並達到提早開花及增進開花品質的效果，對文心蘭生產具利用價值。 Effect of glutathione on the growth and flowering of Oncidesa Gower Ramsey 'Honey Angel' were investigated in this study. The growth of leaf, pseusobulb, leaf SPAD value, and flower qualities were measured. The results showed that the horticultural characteristics such as leaf area, pseudobulb thickness, pseudobulb width, and pseudobulb perimeter of plants treated with 5 mM glutathione were the biggest among all treatments after 12 wks, while the 2 mM-treated plants were the second biggest. There was no significant difference in all horticultural characteristics between 0 and 10 mM treatments. The leaf SPAD values measured at 6, 10, and 14 wks after treatments were significantly increased in plants treated with 5 mM glutathione, followed by 2 mM treatment, and there was no significant difference between 0 and 10 mM treatments. The plants treated with 5 mM glutathione showed the highest spiking rate and the highest flowering rate after 6 wks and 14 wks treatments, respectively. The inflorescence length, branch number, floret number, and floret size were also increased in plants treated with 5 mM glutathione. The growth of roots was inhibited by treatment of 10 mM glutathione even though the growth above ground and flowering qualities were almost the same as the plants with control treatment.