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Jinwook Lee, James P. Mattheis, and David R. Rudell

). ‘Royal Gala’ apples are also susceptible to the development of flesh breakdown during and after cold storage ( Lee et al., 2013 ). However, flesh breakdown development can be delayed following fruit exposure to 1-MCP ( Lee et al., 2013 ). Nonetheless, 1

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Yanina Perez Cayo, Steven Sargent, Cecilia do Nascimento Nunes, and Vance Whitaker

containing the 15 fruit per genotype were placed on open racks in a refrigerated room (first year: 4.0 ± 0.5 °C and 90 ± 2% RH; second year 3.9 ± 0.3 °C and 89 ± 3% RH) for 7 d, to simulate commercial cold storage conditions. Note that due to the lower yield

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Gustavo H.A. Teixeira and José F. Durigan

different from those grown in Brazil. The ‘Pedro Sato’ guava is the most important red pulp cultivar for fresh consumption in Brazil. The objective of this study was to determine the best oxygen concentration for extended cold storage of ‘Pedro Sato’ guava

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Bishnu P. Khanal and Moritz Knoche

of epidermal segments (ES) of the fruit skin for tensile testing. At 141 DAFB when fruit were commercially mature, all fruit were harvested and put into cold storage [1.7 °C, 92% relative humidity (RH)] for up to 118 d (equivalent to 259 DAFB). At

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Xingbin Xie, Congbing Fang, and Yan Wang

eating quality, yellowing, and decay occur commercially in certain production years ( Chen, 2004 ; Chen et al., 1983 ). A high EPR during cold storage may contribute to its relatively low storage potential ( Chen et al., 1982 , 1983 ). In addition to

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Hans Spalholz and Chieri Kubota

Low-temperature storage is a technique to hold seedlings for a short period of time to adjust the production schedule of young seedlings. Labor-intensive grafting propagation can potentially benefit from the effective use of this technique to minimize peak labor inputs. Watermelon (Citrullus lanatus) seedlings are generally chilling sensitive and therefore difficult to store at low temperatures. However, the rootstocks used for watermelon grafting, interspecific squash (Cucurbita maxima × Cucurbita moschata) and bottle gourd (Lagenaria siceraria) are known to be chilling tolerant. To examine the influence of rootstocks on storability of watermelon seedlings, young seedlings of ‘Tri-X-313’ seedless watermelon grafted onto ‘Strong Tosa’ interspecific squash, ‘Emphasis’ bottle gourd, and ‘Tri-X-313’ watermelon as rootstock were placed for 2 or 4 weeks under 12 °C air temperature and 12 μmol·m−2·s−1 photosynthetic photon flux (PPF). Nongrafted watermelon seedlings were also treated in these same conditions. In addition, nonstored (grafted and nongrafted) seedlings were prepared for comparison. Regardless of seedling type (nongrafted or grafted with different rootstocks), all seedlings stored for 2 weeks had lower dry weight, comparable or greater number of leaves and stem length, when compared with their respective nonstored control groups after 2 weeks in the greenhouse. Seedlings stored for 4 weeks had lower number of leaves and stem length after 2 weeks in the greenhouse, except for those grafted onto the interspecific squash rootstock. Nongrafted and grafted watermelon seedlings with the same watermelon cultivar as rootstock showed significantly lower leaf net photosynthetic rates after 2 weeks in the greenhouse after the 2-week storage than those of nonstored control groups. In contrast, when grafted onto interspecific squash and bottle gourd rootstocks, seedlings showed comparable net photosynthetic rate to the control group. For all seedling types, 20% to 35% of seedlings died during 4-week storage or poststorage in the greenhouse, whereas all seedlings survived for the 2-week storage, except when grafted onto watermelon as rootstock. Therefore, chilling-tolerant rootstocks ‘Strong Tosa’ interspecific squash and ‘Emphasis’ bottle gourd improved storability of grafted ‘Tri-X-313’ watermelon seedlings but could not extend the storability beyond 2 weeks.

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Barrett C. Wilson, Jeff L. Sibley, and James E. Altland

A study evaluating the effects of varying levels of chilling on foliar budbreak of linden (Tilia spp.) culivars was initiated in 1999 in Auburn, Ala. [lat. 32°36'N, long. 85°29'W, elevation 709 ft (216m), USDA Hardiness Zone 8a]. Littleleaf linden (T. cordata) `Greenspire' and `Fairview' required the most chilling to produce measurable budbreak and exhibited the lowest budbreak percentages. Silver linden (T. tomentosa) `Sterling' and american linden (T. americana) `Redmond' needed the fewest hours of chilling to produce budbreak and exhibited the highest budbreak percentages. `Sterling' was the top performer in foliar budbreak percentage and in subsequent growth. Although `Redmond' attained high budbreak numbers, its overall growth during the following growing season was inferior to that of `Sterling', `Greenspire' and `Fairview'. This information can contribute to the development of regional planting recommendations, which can aid in the selection of lindens suitable for the area in which they will be grown. Calculated r2 values indicated the models used provided a good fit to the data for all cultivars.

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Max G. Villalobos-Acuña, William V. Biasi, Sylvia Flores, Elizabeth J. Mitcham, Rachel B. Elkins, and Neil H. Willits

and fruit ripening, and on the incidence of physiological disorders after harvest and storage of ‘Bartlett’ pears. The relationships among 1-MCP concentration, application timing, and length of cold storage were also characterized. Materials and

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Todd C. Einhorn, Janet Turner, and Debra Laraway

. Sections of skin, ≈2 cm in diameter, were removed at the widest point of the fruit on opposite sides. An additional 40 fruit per tree were immediately placed in regular atmosphere cold storage (–1 °C) after harvest and analyzed at three and six months from

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Andrés Olivos, Scott Johnson, Qin Xiaoqiong, and Carlos H. Crisosto

production ( Johnson and Uriu, 1989 ), but little is known about the role of nutrition in cold storage disorders, CI expression in fresh cut fruit, and fruit consumption by consumers. Fruit nutrition research has mainly focused on optimizing tree growth and