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Sibylle Stoeckli, Karsten Mody, Silvia Dorn, and Markus Kellerhals

(QTLs) or major genes for disease ( Calenge and Durel, 2006 ; Khan et al., 2006 ) and pest resistance ( Bus et al., 2008 ; Roche et al., 1997 ; Stoeckli et al., 2008b , 2008c , 2009 ; Wearing et al., 2003 ) as well as fruit quality traits ( Cevik

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Jessica L. Gilbert, James W. Olmstead, Thomas A. Colquhoun, Laura A. Levin, David G. Clark, and Howard R. Moskowitz

fruit quality traits of interest to the consumer are what should ultimately fuel production and profitability. In recent surveys, only 48% of U.S. consumers had bought blueberries in the past 12 months compared with 88% of consumers who had bought the

Open access

Xuelian Jiang, Yueling Zhao, Ling Tong, Rui Wang, and Sheng Zhao

-Amri, 2013 ; Massot et al., 2010 ; Nguyen and Schwartz, 1999 ). As tomato production is increasing, consumer demand is gradually changing from increased fruit quantity to better fruit quality ( Chen et al., 2013 ; Wang et al., 2015 ). Water is an essential

Open access

Sanele Fana Kubheka, Samson Zeray Tesfay, Asanda Mditshwa, and Lembe Samukelo Magwaza

accelerates fruit ripening ( Maftoonazad and Ramaswamy, 2005 ; Tesfay and Magwaza, 2017 ). Avocado is also considered to have high mass loss, which can have a negative consequence on fruit quality, such as the fruit experiences shrivelling due to excessive

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Brian A. Kahn

The effects of crop canopy architecture on fruit quality have been studied primarily in tree fruit crops such as apple [ Malus domestica ( Fouché et al., 2010 ; González-Talice et al., 2013 )] and mango [ Mangifera indica ( Normand et al., 2009

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Khalid F. Almutairi, David R. Bryla, and Bernadine C. Strik

, reducing crop loads during water deficits increased plant water status of peach ( Lopez et al., 2006 , 2010 ) and pear ( Pyrus communis L.) ( Marsal et al., 2008 , 2010 ) and improved fruit quality of apple [ Malus × sylvestris (L.) Mill. var

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D. Michael Glenn, Gary J. Puterka, Stephen R. Drake, Thomas R. Unruh, Allen L. Knight, Pedro Baherle, Ernesto Prado, and Tara A. Baugher

Particle film technology is a developing pest control system for tree fruit production systems. Trials were performed in Santiago, Chile, and York Springs, Pa., Wenatchee and Yakima, Wash., and Kearneysville, W. Va., to evaluate the effect of particle treatments on apple [Malus sylvestris (L.) Mill. var. domestica (Borkh) Manst.] leaf physiology, fruit yield, and fruit quality. Leaf carbon assimilation was increased and canopy temperatures were reduced by particle treatments in seven of the eight trials. Yield and/or fruit weight was increased by the particle treatments in seven of the eight trials. In Santiago and Kearneysville, a* values of the fruit surface were more positive in all trials although a* values were not increased in Wenatchee and Yakima. Results indicate that particle film technology is an effective tool in reducing heat stress in apple trees that may result in increased yield potential and quality.

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Dilip R. Panthee, Chunxue Cao, Spencer J. Debenport, Gustavo R. Rodríguez, Joanne A. Labate, Larry D. Robertson, Andrew P. Breksa III, Esther van der Knaap, and Brian B. McSpadden Gardener

quality in the marketplace. Recently, fruit quality has been the most important selection criterion for repeat buyers of tomato. Because of this, tomato breeders have placed significant efforts in improving tomato fruit quality traits, including lycopene

Open access

David Chun, William R. Miller, and Lawrence A. Risse

Abstract

Individually plastic-film-wrapped or waxed ‘Marsh’ grapefruit (Citrus paradisi Macf.) were conditioned (34.5°C, 3 days) at low (30% ± 5% RH) or high (95% ± 5% RH) humidity before cold storage (10° ± 1°; 90% ± 5% RH). Predisposition to storage decay by conditioning was investigated by examining fruit inoculated with penicillium spores either before or after conditioning. Penicillium rot in fruit that was inoculated after conditioning was reduced in plastic-film-wrapped fruit (37%) relative to waxed fruit (74%) only after 2 weeks at 10° ± 1° + 1 week at 21° ± 1° storage. Of the fruit inoculated prior to conditioning, the incidence of decay was lower in fruit conditioned at high RH than in fruit not conditioned or conditioned at low RH. No coating effect of wax or plastic-film was observed. Fruit quality tended to be adversely affected by conditioning, but this effect became less obvious with storage. Fruit coated with plastic film had a better general appearance than waxed grapefruit.

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Jin-Hu Wu, A. Ross Ferguson, Brian G. Murray, Alison M. Duffy, Yilin Jia, Canhong Cheng, and Philip J. Martin

are often larger after chromosome doubling ( Campos et al., 2009 ; Wu et al., 2012 ; Ye et al., 2010 ). However, very little information has been available on the effects of increasing ploidy level on other attributes of fruit quality considered