- 期刊
- OpenAccess
室內光強度對組合盆栽觀賞品質之影響
Effects of Indoor Light Intensity on the Visual Quality of Various-Setting Plants in Containers
摘要
本試驗旨在探討室內三種光強度（2,000～8,000 lux、1,000～2,000 lux及400～600 lux）對組合盆栽觀賞期與觀賞品質的影響。試驗調查結果顯示，朵麗蝶蘭花朵的顏色，在相同的室內光強度下L值（亮度）均有逐漸增加、a值（紅色度）在試驗第7週前有逐漸下降的趨勢，而負b值（藍色度）有增加的趨勢；組合盆栽內觀葉植物，包括黃金萬年竹、蔓綠常春藤及圓葉山蘇的葉綠素讀值均隨觀賞時期增加而顯著增加，葉色逐漸轉濃綠。在組合盆栽中各植株外觀觀賞等級方面，朵麗蝶蘭觀賞等級在第3週後開始降低，以低光強處理者降低速率最快、高光強度處理者最慢，處理間差異達顯著水準；觀葉植物中蔓綠常春藤及圓葉山蘇的觀賞等級，在各光強度處理及各觀賞時期處理間差異未達顯著水準，優良外觀品質之觀賞期均可達9週以上，僅黃金萬年竹在高光強度下第7週後植株明顯抽高，降低觀賞品質。
並列摘要
The experiment was conducted to study the effects on the visual quality and keeping duration of container planting with Doritaenopsis in different indoor light intensity (2,000~8,000 lux, 1,000~2,000 lux, 400~600 lux). The results were shown that the L* value (light degree) increased, the a* value (red degree) decreased in front of previous 7 weeks, and the –b* value decreased during the visual period in the same light intensity treatment. The phenomenon was apparent to say that the flowers of Doritaenopsis discolored comparatively blue. The chlorophyll SPAD reading values investigated from the ornamental plants in container included Dracaena sanderiana cv. 'Celica', Hedera helix cv. 'Hightess Miniature' and Asplenium nidus cv. 'Avis' were increased progressively. It was shown that the color of the ornamental plants leaves were getting darker in indoor light intensity treatment. The grade of visual quality of Doritaenopsis was getting decreased after three weeks. The descending rate was fast by the low light intensity treatment (400~600 lux) and the high light treatment (2,000~8,000 lux) was comparatively slow. The visual quality of Hedera helix cv 'Hightess Miniature' and Asplenium nidus cv. 'Avis' were evaluated to have high grade during test period in this experiment. The grade of visual quality of Dracaena sanderiana cv. 'Celica' was decreased after six weeks as a result of higher plant by high light treatment.