套袋材質與套袋時期對臍橙果實品質之影響

Effect of Bagging Materials and Bagging Time on Navel Orange Fruit Quality

江淑雯(Shu-Wen Jiang) ； 盧柏松(Po-Song Lu)

《臺東區農業改良場研究彙報》 24輯 (2014/06) Pp. 69-82

摘要

利用白色紙袋、雙層黑色紙袋、黑色有孔PE塑膠袋及不織布袋等4種套袋於三個時期（8月中旬、9月初及9月中旬）進行臍橙套袋處理，探討套袋時期及材質對臍橙果實轉色與品質之影響。結果顯示，套袋時間對果實之生理落果、果皮色澤、果重、果皮厚度及果汁可滴定酸度等均有顯著影響；套袋材質則對果皮色澤、果重、果肉全可溶性固形物、果汁可滴定酸度及果皮厚度等有顯著影響；套袋時間及套袋材質兩因子間並無交感作用。生理落果率以9月6日套袋處理者最低，為37.5%。果皮色澤以越晚套袋者其L*值及H*值越高之趨勢，C*值則以雙層黑色紙袋處理最高；果實則有越早套袋越重之趨勢。不同材質套袋間以黑色塑膠袋之果實最重，為344.7公克，以白色紙袋處理最輕，313.7公克。臍橙果實以雙層黑色紙袋處理，有助於果實轉色，套袋適期為9月初，可降低落果率，提升果實品質。

關鍵字

臍橙 ； 套袋 ； 顏色 ； 品質

並列摘要

This study used different bagging time and materials applied in bagging treatment to evaluate the effect to the growth and quality of navel orange fruit. The bagging time was at August 18, September 6, and September 16. And bagging materials including white paper bag, double black paper bag, black PE bag, non-woven bag. The results showed that bagging time on the percentage of fruit drop, fruit color, fruit weight, fruit skin thickness, and titratable acidity had significantly different. Bagging material treatments on fruit color, fruit weight, fruit skin thickness, total soluble solids, andtitratable acidity had significantly different also . But there were no interaction between two factors. Navel orange fruit bagging at September 6 had the lowest fruit drop (37.5%). When navel orange fruit bagging more late, fruit skin color in L* values and H* values had been trending up. Double black paper bag treatment had the highest C* values. When navel orange fruit bagging more late, fruit weight had been trending up. Black PE bag treatment had the biggest fruit weight, is 344.7 grams. However, to select double black paper bagging material can enhance the color of navel orange fruit, and the best bagging period for early September can have good fruit quality.

並列關鍵字

Citrus sinensis L. Osbeck ； bagging ； fruit color ； fruit quality