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Maude Lachapelle, Gaétan Bourgeois, Jennifer R. DeEll, Katrine A. Stewart, and Philippe Séguin

Soggy breakdown is a chilling-related disorder, which in worse cases forms a soft, brown, spongy tissue in the outer apple cortex. It is known to affect the quality of ‘Honeycrisp’ apples, a new variety that is gaining popularity because of its high

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Paul Cockson, Josh B. Henry, Ingram McCall, and Brian E. Whipker

symptoms include the loss of the apical meristem and development of thicker, distorted younger leaves ( Love, 1985 ). Symptomology of other gloxinia nutrient disorders have not been published. Growers producing gloxinia can encounter problems if nutritional

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Jared Barnes, Brian Whipker, Ingram McCall, and Jonathan Frantz

purposes. The differences in the specificity of the roles and accompanying nutritional disorders are illustrated with N and Ca deficiencies. An important component of amino acids, proteins, and nucleic acids ( Briskin and Bloom, 2010 ), N is able to be

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Carlos Henrique Oliveira de David, Vespasiano Borges de Paiva Neto, Cid Naudi Silva Campos, Priscilla Maria da Silva Liber Lopes, Paulo Eduardo Teodoro, and Renato de Mello Prado

). Studies involving nutritional disorders in orchids are still incipient in the literature, specifically for B. catenulata . Therefore, nutritional management of this species has not yet been consolidated, which can affect plant yield and quality. Therefore

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Kristen Young and Eileen A. Kabelka

Squash silverleaf (SSL) disorder is an economically important physiological disorder affecting squash ( Cucurbita pepo L.) throughout the United States, the Caribbean region, and Israel ( Cardoza et al., 1999 ). It is characterized by silvering

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Donald N. Maynard and Donald L. Hopkins

Watermelon (Citrullus lanatus [Thunb.] Matsum & Nakai) fruit are affected by a number of preharvest disorders that may limit their marketability and thereby restrict economic returns to growers. Pathogenic diseases discussed include bacterial rind necrosis (Erwinia sp.), bacterial fruit blotch [Acidovorax avenae subsp. citrulli (Schaad et al.) Willems et al.], anthracnose [Colletotrichum orbiculare (Berk & Mont.) Arx. syn. C. legenarium (Pass.) Ellis & Halst], gummy stem blight/black rot [Didymella bryoniae (Auersw.) Rehm], and phytophthora fruit rot (Phytophthora capsici Leonian). One insect-mediated disorder, rindworm damage is discussed. Physiological disorders considered are blossom-end rot, bottleneck, and sunburn. Additionally, cross stitch, greasy spot, and target cluster, disorders of unknown origin are discussed. Each defect is shown in color for easy identification.

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Eric A. Curry, Carolina Torres, and Luis Neubauer

In apples, development of physiological disorders is a function of many components, including cultural management, growing environment, fruit maturity, and conditions during storage. Disorders related to dysfunctions or aberrations in the

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James C. Fulton and Mark E. Uchanski

, 1973 , 1975 ), “bitter pit” ( Eijsinga et al., 1973 ), and “pepper spot” ( Stolk and Maaswinkel, 1977 ) are different names that have been used in the literature to describe what is likely the same physiological disorder of peppers. This disorder

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

physiological disorders ( DeEll et al., 2003 ; DeLong et al., 2004a ; Jung et al., 2010 ; Larrigaudière et al., 2010 ; Lee et al., 2012b ; Moran and McManus, 2005 ; Zanella, 2003 ). The differential (increased or decreased incidence) impacts on disorder

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Yan-xin Duan, Ying Xu, Ran Wang, and Chun-hui Ma

cultivation area increasing, a physiological disorder that appears to be cork spot in this cultivar has occurred in several pear orchards in Shandong province of China, and become a serious problem over the years. Cork spot, bitter pit, and corky core, the