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Terence L. Robinson* and Christopher B. Watkins

In 2001 and 2002, we imposed a wide range of croploads (0-15 fruits/cm2 of TCA) on 4- and 5-year-old Honeycrisp/M.9 trees by manual hand thinning soon after bloom to define appropriate croploads that give adequate repeat bloom and also the best fruit quality. At harvest each year we evaluated fruit ripening and quality. Samples were stored for 5 months in air at 38 °F and 33 °F and evaluated for fruit firmness and storage disorders. Cropload was negatively correlated with tree growth, return bloom, fruit size, fruit red color, fruit sugar content, fruit starch content, fruit firmness, fruit acidity, fruit bitter pit, fruit senescent breakdown, fruit rot and fruit superficial scald, but was positively correlated with leaf blotch symptoms, fruit internal ethylene concentration at harvest, and fruit soggy breakdown. There was a strong effect of cropload on fruit size up to a cropload 7, beyond which there was only a small additional effect. Although there was considerable variation in return bloom, a relatively low cropload was required to obtain adequate return bloom. Fruit red color was reduced only slightly up to a cropload of 8 beyond which it was reduced dramatically. The reduced fruit color and sugar content at high croploads could indicate a delay in maturity of but, fruits from high croploads were also softer, had less starch and greater internal ethylene. It that excessive croploads advance maturity. Overall, croploads greater than 10 resulted in no bloom the next year, and poor fruit size, color and flavor, but these fruits tended to have the least storage disorders. Moderate croploads (7-8) resulted in disappointing return bloom and mediocre fruit quality. For optimum quality and annual cropping, relatively low croploads of 4-5 were necessary.

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Wenjing Guan, Xin Zhao, and Donald J. Huber

nodes and lateral branches ( Davis and Perkins-Veazie, 2005 ) and flowering and harvest time ( Davis et al., 2008 ). With the increasing use of grafted vegetable plants, effects of grafting on fruit quality remain an intriguing topic owing to the growing

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Rangjian Qiu, Yuanshu Jing, Chunwei Liu, Zaiqiang Yang, and Zhenchang Wang

) are commonly used to describe yield–salinity relationship. The LF may affect the yield of peppers, but whether the LF also has an effect on the parameters of these models is unclear. Irrigation with saline water may in many cases improve fruit quality

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Stephen Southwick*

Quality of stone fruit is defined by fruit size, color, firmness, flavor, shape, general appearance, adhesion and size of the stone and fruit surface characteristics (e.g. fuzz, abrasions, pest damage). Cultural practices, such as pruning, nutrition, irrigation, growth regulator usage and pesticide applications can influence these quality characteristics to a greater or lesser extent. Adequate potassium nutrition can improve soluble solids and fruit size in plums. Excess nitrogen fertilization can soften peaches. Well-timed calcium sprays are thought to improve the firmness of sweet cherries, as are applications of gibberellin. Ethylene synthesis inhibitor usage can alter the timing of ripening, reduce early fruit drop and improve storage. Irrigation scheduling is a tool that can be used to regulate final fruit size and firmness, as well as time of maturation. Selective pruning is used to structure a tree's architecture for improved light penetration to improve fruit size and color. These and other production practices will be discussed in relation to how they affect fruit quality in stone fruit.

Open access

Kristine M. Lang, Ajay Nair, and Kenneth J. Moore

crops ( Carey et al., 2009 ; Lamont, 2009 ) because they extend the growing season substantially ( Lamont, 2009 ; Reeve and Drost, 2012 ) while increasing yield ( Waterer, 2003 ) and improving fruit quality ( O’Connell et al., 2012 ). These

Open access

Lexie McClymont, Ian Goodwin, Desmond Whitfield, Mark O’Connell, and Susanna Turpin

and red pear cultivars with the aim of creating demand domestically and internationally, particularly in Asian markets. Early yields and fruit quality will be important factors determining returns on such investments ( Stott et al., 2018 ; Tomkins

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Iban Eduardo, Pere Arús, Antonio José Monforte, Javier Obando, Juan Pablo Fernández-Trujillo, Juan Antonio Martínez, Antonio Luís Alarcón, Jose María Álvarez, and Esther van der Knaap

search for resistance genes or new alleles with favorable effects on fruit quality traits to be transferred to elite germplasm ( Fernie et al., 2006 ; McCouch, 2004 ; Tanksley and McCouch, 1997 ; Zamir, 2001 ). However, some disease resistance pathways

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David L. Ehret, Brenda Frey, Tom Forge, Tom Helmer, and David R. Bryla

becoming the most widely used in blueberry. Drip irrigation guidelines are available for horticultural crops grown in British Columbia ( Van der Gulik, 1999 ) but no information on expected yield or fruit quality with respect to irrigation is available for

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

’ apple fruit during cold storage and shelf life. Therefore, the objective of this study was to evaluate the effects of the perforated polyethylene liner, which maintains higher humidity during storage and shelf life, on fruit quality attributes and the

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Vance M. Whitaker, Tomas Hasing, Craig K. Chandler, Anne Plotto, and Elizabeth Baldwin

-used cultivars were ‘Strawberry Festival’ and ‘Florida Radiance’, which occupied ≈60% and 10% of planted acreage, respectively. The UF strawberry breeding program has sought to improve fruit quality attributes over time through phenotypic recurrent selection