Effect of Bagging with Black Paper on Coloration and Fruit Quality of 'Ruby' Grapefruit

套黑色紙袋對'Ruby'葡萄柚果實色澤轉變與品質的影響

黃阿賢(A-Shiarn Hwang) ； 黃光亮(Kuang-Liang Huang) ； 許世弦(Shin-Hsuan Hsu)

《中華農業研究》 53卷4期 (2004/12) Pp. 229-238

https://doi.org/10.29951/JARC.200412.0002

摘要

'Ruby'葡萄柚(Citrus paradisi Macf.)果實於五月下旬或六月上旬（早期套袋）或七月上旬（晚期套袋）套以黑色紙袋，處理後至採收期間用色差儀定期測量果皮與果肉之顏色變化，以色相角度(hue angle)、明度(lightness)、彩度(chroma)表示之。套袋後果皮之明度與彩度漸增加、但色相角度漸減少。至11月下旬採收時，套袋者果皮已轉成淡橙紅色，不套袋者為較明亮之黃色。套袋者果皮色澤最深之時期為10月下旬，早期套帶之果皮顏色較晚期套帶者紅。套袋僅稍影響果肉之色相角度，成熟期間兩套袋者色相角度均較不套袋者略小（偏紅色），至採收時兩套袋者間已無差異。套袋對果實品質之影響有限。

關鍵字

葡萄柚 ； 果皮顏色 ； 果肉顏色 ； 套袋 ； 果實品質

並列摘要

'Ruby' grapefruit (Citrus paradisi Macf.) were covered with black paper bags in late May or early June (early bagging) or early July (late bagging), and changes in the peel and flesh color were measured by spectrophotometer in regular intervals till harvest in late November. Bagging increased chroma and lightness but decreased hue angle gradually on peel, thus resulting in a light reddish orange color during maturation period, while control fruits were bright yellow. The most intense color on peel of bagged fruit occurred in late October. The peel color of early-bagged fruit was redder (smaller hue angle) than that of late-bagged fruit. Compared to controls, bagging only slightly enhanced flesh color during maturation period, and there was no significant different between the two different bagging treatments at harvest. Bagging had limited effect on fruit quality.

並列關鍵字

Grapefruit ； Peel color ； Flesh color ； Bagging ； Fruit quality