椰塊大小對文心蘭生長及切花產量之影響
Other Title
Effect of Coconut Chip Size on Growth and Cut Flower Yield of Oncidium
Journal
台灣農業研究
Journal Volume
73
Journal Issue
3
Pages
197-206
Date Issued
2024-09-04
Author(s)
Abstract
本研究以不同尺寸椰塊 (50% 0.7−1.0 cm chip + 50% peat 與1.2−1.5 cm chip) 並搭配自動滴灌系統進行文心蘭「檸檬綠」切花於防雨設施內進行栽培。結果顯示種植2 mo 內可見新根正常生長，但栽培20 mo 後，介質開始出現崩解，又以較小尺寸之椰塊崩解速度較快，幾乎已完全變為粉狀。介質物化性分析，pH 值與孔隙度皆顯著下降；植株生長假球莖周徑並無顯著差異，僅於當代假球莖上之第二片葉，以規格1.2−1.5 cm 之椰塊所栽培的較大；開花品質亦以較大尺寸椰塊之栽培效果較佳，擁有較高之切花產量與品質。整體結果顯示，椰塊可作為文心蘭切花生產用介質，但規格上應選擇較大尺寸，以減緩長期栽培介質崩解所引發之負面影響。
In this study, we utilized different sizes of coconut chips (50% 0.7−1.0 cm chip + 50% peat and 1.2−1.5 cm chip) in conjunction with an automatic drip irrigation system to cultivate the oncidium cut flower variety, ‘Honey Angel’, in a rainproof facility. The results showed that new roots grew normally within 2 mo of planting. However, after 20 mo of cultivation, the medium began to disintegrate, with smaller coconut chips disintegrating faster, almost completely turning into powder. Physical and chemical analyses of the medium revealed significant decreases in pH value and porosity. Regarding plant growth, there was no significant difference in the circumference of pseudo bulbs, except for the second leaf on contemporary pseudo bulbs, which was larger when cultivated with 1.2−1.5 cm coconut chips. Moreover, flowering quality was better when cultivated with larger-sized coconut chips, resulting in higher cut flower yield and quality. Overall, the results indicated that coconut chips could serve as a medium for producing oncidium cut flowers; however, larger-sized chips should be chosen to alleviate the negative effects of medium disintegration.
Subjects
文心蘭
替代介質
椰塊
切花品質
oncidium
Alternative medium
Coconut chip
flower quality
Publisher
農業試驗所
Type
journal article
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