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Qiang Zhang, Wenting Dai, Hui Yang, Wenting Jia, Xuefei Ning, and Jixin Li

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W.O. Cline

The effects of inoculum, surface wetness, and stem scar on postharvest fungal infection of highbush blueberry (Vaccinium corymbosum L.) fruit were evaluated by exposing berries of the cultivars Bluechip (small, dry stem scar) and Blueray (large, wet stem scar) to infested and noninfested surfaces under wet or dry conditions. Rots caused by Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. in Penz. and Alternaria tenuissima (Kunze:Fr.) Wiltshire were evaluated. Field-harvested berries stored for 7 days at 21 °C resulted in baseline infection levels of 1.5% (`Bluechip') and 18.7% (`Blueray') for C. gloeosporioides, and 10.1% vs. 28.9%, respectively, for A. tenuissima. Wet stem scars, infestation of handling surfaces, and addition of moisture were all responsible for increasing postharvest rots; however, most of the significant increases in rots occurred with a combination of two or more of these factors.

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Victor Rodov, Batia Horev, Yakov Vinokur, Azica Copel, Yair Aharoni, and Nehemia Aharoni

Modified-atmosphere (MA) packaging using bag-in-box Xtend® liners extended the postharvest life of nonnetted Charentais-type muskmelons (Cucumis melo L., Cantalupensis Group, cv. Luna) by delaying over-ripening: excessive softening, change of rind color, decreased soluble solids, and the development of postharvest pathogens. The most delayed fruit ripening was achieved by an atmosphere of 13-14 kPa CO2 and 7-10 kPa O2, even though ethylene concentrations were as much as 120 μL·L-1. Charentais fruit stored in this atmosphere at 6 to 7 °C maintained marketable quality for 12 days plus additional 3 days at 20 °C. In contrast, lifespan under commercial conditions in air did not exceed 3-5 days at 10 to 11 °C plus 3 days at 20 °C. The recommended MA was achieved by using the liners with low microperforation level (total perforation area 25 × 10-5 percent of the film surface), 8-9 fruit of total weight ≈5 kg per liner. MA packaging of Charentais melons makes possible their transportation from Israel to Europe by sea instead of air.

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Jiwon Jeong, Jeffrey K. Brecht, Donald J. Huber, and Steven A. Sargent

A study was conducted to determine the influence of the ethylene action inhibitor, 1-methylcyclopropene (1-MCP), on the shelf life and deterioration during storage at 5 °C of intact netted muskmelon (Cucumis melo L. var. reticulatus) fruit and fresh-cut cubes prepared from those fruit. ‘Durango’, ‘Magellan’, and ‘7920’ fruit (3/4 to full-slip stage) were treated with 1-MCP (1.0 μL·L−1) for 24 h at 20 °C. Preliminary research with ‘Athena’ muskmelon had shown that the more physiologically advanced distal pericarp tissue developed significantly more watersoaking than the less advanced proximal and center portions during 5 °C storage; therefore, after treatment with 1-MCP and cooling to 5 °C, the center portions of the fruit were used to prepare the fresh-cut samples. Fresh-cut cubes and intact fruit were stored for 12 d at 5 °C. Intact fruit of all tested cultivars responded to 1-MCP application with improved firmness retention during storage, but no watersoaking was observed in intact fruit. The effect of 1-MCP treatment on the firmness retention and watersoaking of fresh-cut cubes from the different cultivars was inconsistent. Exposure of muskmelon fruit to 1-MCP did not significantly influence the flesh color or soluble solid contents of either intact fruit or fresh-cut cubes during storage at 5 °C.

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Julia M. Harshman, Wayne M. Jurick II, Kim S. Lewers, Shiow Y. Wang, and Christopher S. Walsh

studied ( Jarvis, 1962 ). Primary inoculum comes from conidia that arise from sclerotia that overwinter on dead or decaying material such as leftover floricanes infected with the fungus. In this tissue, the pathogen lives as a saprophyte. In the spring

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Preeti Sood, Chris Ference, Jan Narciso, and Ed Etxeberria

facilitate the entrance of decay organisms. In previous anatomical studies using tomato ( Solanum lycopersicum ) and avocado ( Persea americana ) ( Etxeberria et al., 2006 ), it was demonstrated that cells under the affected area of a laser pinhole developed

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Luiz C. Argenta, Sérgio T. de Freitas, James P. Mattheis, Marcelo J. Vieira, Claudio Ogoshi, Luiz Carlos Argenta, Sérgio T. de Freitas, James P. Mattheis, Marcelo J. Vieira, and Claudio Ogoshi

). Factors contributing to loss and waste of fruit after harvest include development of fungal decay, physiological disorders, mechanical injuries, as well as deterioration of appearance, texture, and flavor that lead to consumer dissatisfaction ( Kader, 2005

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Wojciech J. Janisiewicz, Robert A. Saftner, William S. Conway, and Philip L. Forsline

disease resistance and associated decays ( Janick et al., 1996 ). In a survey of the New York market from 1972 to 1984, blue mold caused by Penicillium expansum was the most damaging parasitic postharvest disease of apple ( Cappellini et al., 1987

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Luís Carlos Cunha Júnior, Ângelo Pedro Jacomino, Marcos José Trevisan, and Gustavo Henrique de Almeida Teixeira

strawberry is a non-climacteric fruit. Furthermore, strawberry is highly susceptible to mechanical damage ( Flores-Cantillano, 1998 ), the development of postharvest decay ( Qadir and Hashinaga, 2001 ), and a high rate of water loss ( Nunes et al., 1995