Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/89183
標題: 採前套袋、噴鈣與採後預冷、比重分級對'珍珠'番石榴果實品質之影響
Effects of Pre-harvest Bagging, Calcium Application, Postharvest Precooling, and Specific Gravity Grading on Fruit Quality of 'Jen-Ju' Guava (Psidium guajava L.)
作者: Chun-Yuan Chiu
邱俊源
關鍵字: 番石榴
採前套袋
採前噴鈣
預冷
比重分級
果實品質
Guava
Preharvest bagging
Preharvest calcium application
Precooling
Specific Gravity Grading
Fruit quality
引用: 王亞勤。2012。套袋材質與網室栽培對'珍珠'番石榴果實品質及貯運能力之影響暨 評估溫度逆境指標之研究。國立中興大學園藝學系碩士論文。臺灣:臺中。98pp.。 王歆婷。2008。套袋對'珍珠拔'番石榴果實發育期間生理特性及果膠酵素活性之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。87pp.。 石正中。1998。採收成熟度對網紋洋香瓜貯藏品質之影響。宜蘭技術學報1: 59-65。 江淑雯、盧柏松。2011。套袋對臍橙果實品質之影響。台東區農業改良場研究彙報21: 37-50。 邱麗娜。1998。砧木品種、葉片氣孔數及嫁接對芒果無機養分與碳水化合物之影響。國立中興大學園藝學研究所碩士論文。臺灣:臺中。pp.23-28。 李允中、林棟樑。2005。台灣園產品預冷的研究與推廣。園產品採後處理技術之研究與應用研討會專刊。pp.221-227。 林月金、高德錚。2005。台灣番石榴產業分析。台中區農業專訊第五十一期。高德錚。行政院農業委員會台中區農業改良場編印。pp.4-8。 林芳存、郭銀港、呂明雄。1992。套袋對番石榴果實大小及品質影響。嘉義農專學報29:37-45。 林峻緯。2011。採前套袋、浸泡S-ABA及採後熱處理對外銷椪柑果實品質之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。107pp.。 林棟樑。2001。蔬果預冷保鮮技術。台南區農業改良場技術專刊。90-6 (No.115)。 林慧玲。1998。番石榴果實後熟生理之研究。國立臺灣大學園藝學研究所博士論文。臺灣:臺北。255pp.。 林慧玲、黃瑞華、王自存。2005。番石榴果實之貯運技術。園產品採後處理技術之研究與應用研討會專刊。黃肇家、黃錦杰、歐錫坤、林俊義。行政院農業委員會農業試驗所編印。pp.21-41。 林慧玲、蔡宜君、王茗慧、劉芳芸、黃琇亭、謝鴻業。2011。番石榴之低溫貯運保鮮技術改進。番石榴栽培技術與經營管理研討會論文輯特刊108號。蔡宜峰、陳彥樺。行政院農業委員會臺中區農業改良場編印。pp.40-62。 柯勇。2002。植物生理學。藝軒圖書出版社。 柯立祥、蔡龍銘。1991。里港地區蔬菜採收後處理及低溫貯運系統之建立與評估。建立農水畜產品低溫運銷系統。食品工業發展研究所。臺灣:新竹。pp.77-85。 胡花麗、李鵬霞、王煒。2009。預冷方式對李果實呼吸強度、乙烯生成量及貯藏品質的影響。西北林學院學報24(2): 80-83。 徐麗霞、裴軼琨、徐韋法。1999。園藝作物鈣素功能。北方園藝126:15-17。 郭純德、黃肇家、蔡平里。1999。預冷對苦瓜果實櫥架品質之影響。宜蘭技術學報2:11-17。 陳如茵、蔡美珠、錢明賽。1991。小包裝蔬菜之儲存條件與儲存壽命之關係 (三)食品工業發展研究所研究報告647-2。台灣:新竹。 陳思如、李國譚、葉德銘。2012。鈣的吸收、運移及分配對番茄果實尻腐病之影響。高雄區農業改良場研究彙報23(2): 10-14。 陳玟瑾、賴文龍、陳鴻堂、黃建勝、黃一峰。2013。葉施不同濃度鉀、鈣肥對番石榴葉片性狀及果實品質之影響。臺中區農業改良場研究彙報120:1-9。 許世弦、黃阿賢、黃光亮。2004。不同套袋處理對'Rudy'葡萄柚果實顏色與主要果皮色素組成之影響。中國園藝 50(4): 393-404。 張明郎。2011。番石榴產業發展現況。番石榴栽培技術與經營管理研討會論文輯特刊108號。蔡宜峰、陳彥樺。行政院農業委員會臺中區農業改良場編印。pp.1-9。 張哲嘉、林宗賢。1998。台灣番石榴生產之現況與改進。中國園藝44(2):116-124。 張清勤。1991。鳳梨台農四號外銷果實採收成熟度之研究。中華農業研究40(1):37-44。 張淑貞。2010。物理資材-阻隔作用。作物蟲害非農藥防治資材。行政院農業委員會農業試驗所編印。pp.96-108。 張粲如、陳貽倫、李允中。1994。不同預冷方式對葉菜類品質之影響。桃園區農業改良場研究報告第19號。pp.17-26。 游雯蓉。2003。瓜類植株鈣之吸收與運移。國立中興大學園藝學系碩士論文。臺灣:臺中。98pp。 楊建榮。2004。套袋處理對'水晶'番石榴果實生育及品質之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。129pp.。 葉文彬、張林仁。2011。番石榴外銷貯運技術。番石榴栽培技術與經營管理研討會論文輯特刊108號。蔡宜峰、陳彥樺。行政院農業委員會臺中區農業改良場編印。pp.63-75。 賈德翠、王仁才、涂洪強、肖志偉、李自強、卜范文。2008。不同預冷處理對獼猴桃果實冷藏效果的影響。湖南農業大學學報(自然科學版) 3(34): 314-316。 廖玉琬、徐善德、林美華、謝永祥、吳弘達、鍾仁彬。1999。植物生理學。啟英文化事業有限公司。p.54-55, 62-63,90, 114-116, 581。 鄭榮瑞、詹碧連、盧子淵、曾清田。1991。甜玉米保鮮之研究-預冷條件之探討建立與應用。台南區農業改良場研究彙報第26號。pp.32-44。 鄭安亨。2005。'珍珠拔'番石榴生育期間葉片、果實礦物元素及光合產物之變化與果實品質間之關係。國立中興大學園藝學系碩士論文。臺灣:臺中。97pp.。 蓋玉恬。2008。鈣及根溫處理對胡瓜'夏笛'生育及產量之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。91pp.。 趙景煌。2010。套袋對荔枝果實產量及品質之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。68pp.。 臺灣農業統計年報。2013。行政院農業委員會農糧署編印。 劉富文。1995。園產品採收後處理及貯藏技術。台灣省青果運銷合作社編印。178pp.。 劉富文、潘靜慧、薛淑滿、洪紫馨。1998。採收成熟度及貯藏溫度對椪柑貯藏壽命之影響。中國園藝 44(3):239-252。 劉碧鵑。2012。主要外銷果樹採後處理專刊。行政院農委會農業試驗所出版。130pp.。 劉慧瑛、黃淵輝。1991。台灣水果維他命C含量之測定。中華農業研究40(3): 280-290。 蔡竹固。1991。臺灣番石榴果實病害。植物保護學會會刊 33: 384-389。 蔡宜君。2011。修剪、套袋及網室栽培與低溫貯藏前熱處理對番石榴品質之影響。國立中興大學園藝學系碩士論文。臺灣:臺中。98pp.。 蕭介宗、盧福明、雷鵬魁。1984。台灣主要蔬菜冷藏方式之研究和改善工程分析。農工學報。30(1):65-80。 謝慶昌。2013。提昇臺灣芒果產業價值鏈研討會專刊。pp.17-24。 魏梓訓。2013。改善番石榴果實貯藏品質之研究。國立中興大學園藝學系碩士論文。臺灣:臺中。114pp.。 Adams, P. and L. C. Ho. 1992. The susceptibility of modern tomato cultivars to blossom-end rot in relation to salinity. J. Hort. Sci. 67: 827-839. Alarcon, A. L., R. Mardrid, C. Egea, and I. Guillen. 1999. Calcium deficiency provoked by the application of different forms and concentrations of Ca2+ to soil-less cultivated muskmelons. Sci. Hort. 81: 89-102. Angeletti, P., H. Castagnasso, E. Miceli, L. Terminiello, A. Concellon, A. Chaves, and A. R. Vicente. 2010. Effect of preharvest calcium applications on postharvest quality, softening and cell wall degradation of two blueberry (Vaccinium corymbosum) varieties. Postharvest Biol. Technol. 58: 98-103. Asami, I., Y. Tanaka, and M. Aoki. 1988. Studies on the quality evaluation of kiwifruit chemical composition and nondestructive quality evaluation method of kiwifruit. Res. Bull. Aichi Agric. Ctr. 20: 309–316. Baloch, M. K., F. Bibi, M. S. Jilani. 2011. Quality and shelf life of mango (Mangifera indica L.) fruit: as affected by cooling at harvest time. Sci. Hort. 130: 642–646. Baloch, M. K. and F. Bibi. 2012. Effect of harvesting and storage conditions on the post harvest quality and shelf life of mango (Mangifera indica L.) fruit. S. Afr. J. Bot. 83: 109–116. Bangerth, F. 1979. Calcium-related physiological disorders of plants. Annu. Rev. Phytopathol. 17: 97-122. Bernadac, A., I. Jean-Baptiste, G. Bertoni, and P. Morard. 1996. Changes in calcium contents durung melon (Cucumis melo L.) fruit development. Sci. Hort. 66: 181-189. Bisen, S. and R. S. Thakur. 2012. Beneficial effects of pre-harvest application calcium nitrate and gibberellic acid on storage behavior of guava fruits. JNKVV Res. J. 46(3): 322.327. Brosnan, T. and Da-Wen Sun. 2001. Precooling techniques and applications for horticultural products -a review. Int. J. Refr. 24: 154-170. Brown, B. I. and R. B. H. Wills. 1983. Post-harvest changes in guava fruit of different maturity. Sci. Hort. 19: 237-243. Chiu, T. F. and C. Bould. 1977. Sand-culture studies on the calcium nutrition of young apple trees with particular reference to bitter pit. J. Hort. Sci. 52: 19-28. Choi, J. H., S. H. Yim, K. S. Cho, M. S. Kim, Y. S. Park, S. K. Jung, and H. S. Choi. 2015. Fruit quality and core breakdown of 'Wonhwang' pears in relationto harvest date and pre-storage cooling. Sci. Hort. 188: 1–5. Chonhenchob, V., D. Kamhangwong, J. Kruenate, K. Khongrat, N. Tangchantra, U. Wichai, and S. P. Singhe. 2010. Preharvest bagging with wavelength-selective materials enhances development and quality of mango (Mangifera indica L.) cv. Nam Dok Mai #4. J. Sci. Food Agric. 91: 664-671. Ciccarese, A., A. M. Stellacci, G. Gentilesco, and P. Rubino. 2013. Effectiveness of pre- and post-veraison calcium applications to control decay and maintain table grape fruit quality during storage. Postharvest Biol. Technol. 75: 135-141. DeLong, J. M., R. K. Prange, and P. A. Harrison. 2004. The influence of pre-storage delayed cooling on quality and disorder incidence in 'Honeycrisp' apple fruit. Postharvest Biol. Technol. 33: 175–180. Dubois, M. 1956. Colorimeteric method for determination of sugar and related substances. Anal. Chem. 28: 350-356. Edmundo, M. S., B. B. Pedro, and G. V. Angeles. 1998. Fruit development, harvest index and ripening changes of guavas produced in central Mexico. Postharvest Biol. Technol. 13: 143-150. Franke, W. 1961. Ectodesmata and foliar absorption. Amer. J. Bot. 48: 683-691. Garrido, Y., J. A. Tudela, and M. I. Gil. 2015. Comparison of industrial precooling systems for minimally processed baby spinach. Postharvest Biol. Technol. 102: 1-8. Goutam, M., H. S. Dhaliwal, and B. V. C. Mahajan. 2010. Effect of pre-harvest calcium sprays on post-harvest life of winter guava (Psidium guajava L.). J. Food Sci. Technol. 47(5): 501-506. Guerra, M. and P.A. Casquero. 2008. Effect of harvest date on cold storage and postharvest quality of plum cv. Green Gage. Postharvest Biol. Technol. 47: 325–332. Hanger, B. C. 1979. The movement of calcium in plants. Commun. Soil Sci. Plant Anal. 10: 171-193. Hiratsuka, S., Y. Yokoyama, H. Nishimura, T. Miyazaki, and K. Nada. 2012. Fruit photosynthesis and phosphoenolpyruvate carboxylase activity as affected by lightproof fruit bagging in satsuma mandarin. J. Amer. Soc. Hort. Sci. 137(4): 215-220. Hofman, P. J., L. G. Smith, D. C. Joyce, G. I. Johnson, and G. F. Meiburg. 1997. Bagging of mango (Mangifera indica cv. 'Keitt') fruit influences fruit quality and mineral composition. Postharvest Biol. Technol. 12: 83-91. Hofman, P., J. Fuchs, and D. L. Milne. 2002. Harvesting, packing, postharvest technology, transport and processing. The Avocado:Botany, Prodution and Uses. CABI Publishing. New York. pp. 363-402. Jordan, R. B., E. F. Walton, K. U. Klages, and R. J. Seelye. 2000. Postharvest fruit density as an indicator of dry matter and ripened soluble solids of kiwifruit. Postharvest Biol. Technol. 20: 163-173. Kapse, B. M. and J. S. Katrodia. 1997. Ripening behaviour of 'Kesar' mangoes in relation to specific gravity. Acta Hort. 455: 669–678. Karemera, N. J. U. and S. Habimana. 2014. Effect of pre-harvest calcium chloride on post harvest behavior of mango fruits (Mangifera Indica L.)cv. Alphonso. Universal J. Agr. Res. 2(3): 119-125. Katagiri, T., Y. Satoh, T. Fukuda, and I. Kataoka. 2003. Improving marketability of 'Fuyu' persimmon fruit by bagging culture. Acta Hort. 601: 213-217. Kato, K. 1997. Electrical density sorting and estimation of soluble solids content of watermelon. J. Agric. Engng Res. 67: 161-170. King, A. I., D. C. Joyce, and M. S. Reid. 1988. Role of carbohydrates in diurnal chilling sensitivity of tomato seedlings. Plant Physiol. 86: 764-768. Kudachikar, V. B., S. G. Kulkarni, M. N. Keshava Prakash, M. S.Vasantha, B. Aravinda Prasad, and K. V. R. Ramana. 2001. Physico-chemical changes during maturity of mango(Mangifera indica L.) variety 'Neelum'. J. Food Sci. Technol. 38: 540–542. Kumar, R. and M. N. Hoda. 1974. Fixation of maturity standards of guava (Psidium guajava L). Indian J. Hort. 31: 140–144. Li, S. H., M. Genard, C. Bussi, J. G. Huguet, R. Habib, J. Besset, and R..Laurent. 2001. Fruit quality and leaf photosynthesis in response to microenvironment modification around individual fruit by covering the fruit with plastic in nectarine and peach trees. J. Hort. Sci. Biotech. 76(1): 61-69. Liang, Y. S., O. Wongmetha, P. S. Wua, and L. S. Ke. 2013. Influence of hydrocooling on browning and quality of litchi cultivar Feizixiao during storage. Int. J. Refrig. 36: 1173-1179. Lim, T. K. and K. C. Khoo. 1990. Guava in Malaysia: Production, Pests and Disorders. Tropical Press SDN. BHN. (Malaysia.) 280pp. Manganaris, G.A., I. F. Ilias, M. Vasilakakis, and I. Mignani. 2007. The effect of hydrocooling on ripening related quality attributes and cell wall physicochemical properties of sweet cherry fruit (Prunus avium L.). Int. J. Refrig. 30: 1386-1392. Marschner, H. 1995. Mineral nutrition of higher plants, 2nd edn. London: Academic Press. Martínez-Romero, D., S. Castillo, and D. Valero. 2003. Forced-air cooling applied before fruit handling to prevent mechanical damage of plums (Prunus salicina Lindl.). Postharvest Biol. Technol. 28: 135-142. Morera-Montoya, R., H. Blanco-Metzler, and C. Luis-Loria. 2010. Evaluation of different bagging materials for the control of the fruit fly Anastrepha sp. (Diptera:Tephritidae) and fruit pathogens in Taiwanese guava fruits (Psidium guajava L.). Acta Hort. 849: 283-291. Murata, T. 1969. Physiological and biochemical studies of chilling injury in bananas. Physiol. Plantarum. 22(2): 401-411. Nunes, M. C. N., J. K. Brecht, S. A. Sargent, and A. M. M. B. Morais.1995. Effects of delays to cooling and wrapping on strawberry quality (cv. Sweet Charlie). Food Control. 6(6): 323-328. Ortiz, A., J. Graell, and I. Lara. 2011. Preharvest calcium applications inhibit some cell wall-modifying enzyme activities and delay cell wall disassembly at commercial harvest of 'Fuji Kiku-8' apples. Postharvest Biol. Technol. 62: 161-167. Poovaiah, B. W. 1988. Molecular and cellular aspects of calcium action in plants. HortScience 23: 267-271. Porro, D. A. Ceschini and T. Pantezzi. 2005. The importance of advisory service in predicting bitter pit using early-season fruit analysis. Acta. Hort. 721: 273-278. Rajput, B. S., R. Lekhe, G. K. Sharma, and I. Singh. 2008. Effect of pre and post harvest treatments on shelf life and quality of guava fruits. (Psidium guajava L.) cv. Gwalior-27. Asian J. Hort. 3(2): 368-371. Reichel, M., R. Carle, P. Sruamsiri, and S. Neidhart. 2010. Influence of harvest maturity on quality and shelf-life of litchi fruit (Litchi chinensis Sonn.). Postharvest Biol. Technol. 57: 162–175. Richardson, A. C., K. J. MacAneney, and T. E.Dawson. 1997. Carbohydrate dynamics in kiwifruit. J. Hort. Sci. 72: 907– 917. Robbins, J. and P. P. Moore. 1992. Fruit quality of stored, fresh red raspberries after a delay in precooling. HortTechnology. 2(4): 468-470. Saranwong, S., J. Sornsrivichai, and S. Kawano. 2004. Prediction of ripe -stage eating quality of mango fruit from its harvest quality measured nondestructively by near infrared spectroscopy. Postharvest Biol. Technol. 31: 137-145. Saure, M. C. 2005. Calcium translocation to fleshy fruit: its mechanism and endogenous control. Sci. Hort. 105: 65-89. Sharma, R. R., R. K. Pal, R. Asrey, V. R. Sagar, M. R. Dhiman, and M. R. Rana. 2013. Pre-harvest fruit bagging influences fruit color and quality of apple cv. Delicious. Agr. Sci. 4(9): 443-448. Shear, C. B. 1975. Calcium-related disorders of fruits and vegetables. HortScience. 10:361-365. Shewfelt, R. L. 1986. Postharvest treatment for extending the shelf life of fruits and vegetables. Food Technology. 5: 70-79. Shoji, T. 1991. Import of calcium by tomato fruit in relation to the day-night periodicity. Sci. Hort. 45: 235-243. Singh, R., O.P. Chaturvedi, G.S. Gaur, and G. Singh. 2007. Effect of pre-harvest spray of zinc, calcium and boron on the storage behaviour of guava (Psidium guajava L.) fruits cv. Allahabad Safeda. Acta Hort. 735: 633-638. Srivaatava, H. C. and P. Narasimhan. 1967. Physiological studies during the growth and development of different varieties of guava (Psidium guajava L.). J. Hort. Sci. 42: 97-104. Sullivan, G. H., L. R. Davenport, and J. W. Julian. 1996. Progress in new crops: Precooling: key factor for assuring quality in new fresh market vegetable crops. Arlington (VA): ASHS Press. p.521-524. Suwwan, M. A. and B. N. Poovaiah. 1978. Association between element content and fruit ripening in rin and normal tomatoes. Plant Physiol. 61:883-885. Tandom, D. K., B. P. Singh, and S. K. Kalra. 1989. Storage behavior of specific-gravity -graded guava fruits. Sci. Hort. 41: 35–41. Taylor, K. C. and P. Brannen. 2008. Effects of foliar calcium application on peach fruit, quality, shelf-life, and fruit rot. Albion Conference on Plant Nutrition. Tripathi, R. S. and B. M. Gangwar. 1971. Biochemical changes as indices of maturity in guava (Psidium guajava L). Progress. Hort. 3: 17–23. White, P. J. and M. R. Broadley. 2003. Calcium in plants. Ann. Bot. 92: 487-511. Wieneke, J. 1979. Calcium transport and its microauto-radiographic localization in the tissue. Commun. Soil Sci. Plant Anal. 10: 237-250. Wójcik, P., A. Skorupinska, and J. Filipczak. 2014. Impacts of preharvest fall sprays of calcium chloride at highrates on quality and 'Conference' pear storability. Sci. Hort. 168: 51-57. Yang, W. H., X. C. Zhu, J. H. Bu, G. B. Hu, H. C. Wang, and X. M. Huang. 2009. Effects of bagging on fruit development and quality in cross-winter off-season longan. Sci. Hort. 120: 194-200. Yunxia, Q., M. S. Nishina, and R. E. Paull. 1995. Papaya fruit growth, calcium uptake, and fruit ripening. J. Amer. Soc. Hort. Sci. 120: 246-253. Yusof, S. and M. Suhaila. 1987. Physicochemical changes in guava (Psidium guajava L.) during development and maturation. J. Sci. Food Agric. 38: 31–59.
摘要: The amount of guava export t in Taiwan has increased year after year, but guava fruits are not resistant to cold storage and have poor quality during summer.The objectives of this research is to investigate the effect of preharvest bagging materials, calcium foliar application, postharvest precooling and specific gravity grading on fruit quality and cold storage capacity of 'Jen Ju' guava (Psidium guajava L.), and to establish an effective postharvest processing method for guava export. 'Jen-Ju' guava fruits bagged with white paper bag lined with expanded polystyrene net sleeve (WP+EPNS) showed reduced chilling injury, maintained higher firmness, total soluble solid, and ascorbic acid during cold storage, and demonstrated highter fruit growth rate.These results indicated that white paper bag lined with expanded polystyrene net sleeve (WP+EPNS) can effectively improve export quality of guava fruits and the bagged fruits showed decreased quality deterioration, less chilling injury and comparable yield to conventional cultivation. Furthermore, 2-4 times preharvest spray of 0.1M nano calcium or calcium lactate in young fruit stage of guava resulted in significant increase of the calcium content in leaf and fruit, but calcium lactate application may cause small fruit.Results from calcium nitrate application showed that it is the most potential source of calcium transferred in leaf and can be considered as a new source for calcium application. Results from different pre-cooling treatments immediately after harvest, showed that hydrocooling was most efficient in lowering fruit temperature, followed by forced-air cooling and then general room cooling.Forced-air cooling could reduce firmness loss during storage, however, no significant difference on total soluble solid and ascorbic acid values can be observed among different pre-cooling treatments. Hydrocooling is not suitable for guava, because the fruits displayed skin browing and decay after rewarming at 25℃. In summary, forced-air cooling is the most appropriate precooling method for guava harvested from field.In specific gravity graded 'Jen-Ju' guava fruits, a good correlation between fruit firmness and specific gravity was noticed. However, this correlation was influenced by fruit size, production site, cultivation method and season.Guava fruits harvested in May and June, can be graded into 60% and 80% maturity by their specific gravity between 0.92-0.93.In contrast, fruits harvested in August were better graded by 0.95.In trems of storage quality, no significant difference in organoleptic qualities was recored.After cold stograge, low maturity fruits (SG ≥ 0.95) showed less skin browning and vascular browning compared to higher maturity fruits (SG < 0.95).
臺灣番石榴外銷量逐年攀升,為了改善夏季果實不耐低溫貯運及品質較差等問題。本試驗目的在探討從田間栽培改善做起,利用採收前套袋及噴鈣處理,調查果實採收品質及低溫貯運能力,並於採收後進行預冷處理和比重分級,期望能建立有效的夏季果實採收後處理流程,供臺灣番石榴外銷作業參考。 '珍珠'番石榴以白色紙袋內襯白色舒果網進行套袋處理,有效改善單獨以白色紙袋套袋延緩果實生長速率及大小的問題,夏季果實採收期與塑膠袋內襯白色舒果網處理差距在7天以內,且貯藏期間果實硬度、可溶性固形物及抗壞血酸含量均高於塑膠袋內襯白色舒果網處理,低溫貯藏的寒害症狀也受到改善,顯示白色紙袋內襯白色舒果網處理能保有單獨使用白色紙袋提升果實品質、降低貯藏期間品質劣變及寒害發生的優點,也能使果實鮮重、大小與塑膠袋內襯白色舒果網處理相近,維持'珍珠'番石榴夏季果實品質。番石榴幼果期進行2-4次鈣源噴施,結果以0.1M奈米鈣和乳酸鈣處理能顯著增加番石榴植株葉片鈣含量,噴施4次後套袋果實的鈣含量也明顯提升,惟須注意乳酸鈣可能有果實變小的問題,而在葉片鈣元素轉移試驗中以0.05M硝酸鈣最具潛力,可能為另一種鈣源噴施的新選擇。 採收後立刻進行5℃的預冷處理,結果顯示以冰水預冷冷卻最快,其次為壓差預冷,最慢為一般室冷,貯藏品質以壓差預冷可有效延緩果實貯藏期間硬度下降,但是在可溶性固形物及抗壞血酸含量方面,不同預冷處理則無明顯差異效果,經回溫後冰水預冷的果實即出現明顯果皮褐化及腐爛現象,顯示冰水並不適合做為番石榴預冷方法,採收後以壓差預冷處理較佳。番石榴以果實比重作為分級的結果顯示,比重與硬度有較好的相關性,但受到果實個體差異、不同產地、栽培技術及季節等因素所影響。於5、6月份採收的果實以比重0.92-0.93進行分級可區分六分熟及八分熟果實,但至8月份採收的果實以比重0.95進行分級較為恰當。在貯藏品質調查顯示,兩者在官能品評上差異不大,低成熟度(SG ≥ 0.95)果實低溫冷藏後果皮褐化及維管束褐化等症狀較高成熟度輕微,但可能會有酒精傷害的疑慮。
URI: http://hdl.handle.net/11455/89183
其他識別: U0005-1108201518562100
文章公開時間: 2018-08-17
Appears in Collections:園藝學系

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