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Charles J. Wasonga, Marcial A. Pastor-Corrales, Timothy G. Porch, and Phillip D. Griffiths

pods, and reduced pod number ( Omae et al., 2007 ; Porch and Jahn, 2001 ). There is genetic variability in tolerance to heat stress within the common bean ( Porch et al., 2004 ; Rainey and Griffiths, 2005b ). Heat-induced abscission of reproductive

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Charles J. Wasonga, Marcial A. Pastor-Corrales, Timothy G. Porch, and Phillip D. Griffiths

increased or sustained productivity under elevated temperature conditions. Genetic improvement of snap bean for tolerance to high-temperature stress is a promising option for increasing yield and quality in heat-stressed environments ( Porch and Jahn, 2001

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Jing Tian, Li-Ping Wang, Yan-Juan Yang, Jin Sun, and Shi-Rong Guo

originating in subtropical regions; therefore, regarding annual production, researchers have historically placed much emphasis on damage caused by low temperature and mechanisms on chilling tolerance. However, in more recent years, heat stress has been a

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Dilip R. Panthee, Jonathan P. Kressin, and Ann Piotrowski

include fruit cracking, malformation of fruits (e.g., catfacing), and a malformed blossom-end scar. In sum, heat stress reduces the fruit number, quality, and marketable yield of tomato. Heat stress tolerance has been analyzed in different plant species

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Claire Woodward, Lee Hansen, Fleur Beckwith, Regina S. Redman, and Rusty J. Rodriguez

coastal plants are able to confer heat and salt tolerance to crop plants such as cucurbits or tomato, respectively ( Rodriguez et al., 2008 ). The ability of endophytes to confer stress tolerance to both monocots and eudicots suggests that the genetic

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Fan-Hsuan Yang, David R. Bryla, and Bernadine C. Strik

. Differences in membrane chemistry or the presence of heat-shock proteins could also lead to differences in heat tolerance among cultivars. For example, β-diketones, which are the second most abundant compounds in the wax layer of blueberries ( Chu et al., 2017

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Karl Guillard and John C. Inguagiato

against pathogens and insect pests (reviewed in Sangha et al., 2014 ). Turf managers are continually seeking improved grasses, management practices, and products that enhance heat and drought tolerance, and reduce supplemental irrigation needs. To this

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Stephen S. Deschamps and Shinsuke Agehara

early fruit yields ( Guan et al., 2016 ). Two strawberry cultivars that differ in heat stress tolerance and early-season yield patterns were used in this study. ‘Florida Beauty’, the earliest cultivar available in Florida, is day neutral, so it has the

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John R. Clark

. From these early trials and subsequent investigations, several major traits have been identified for improvement. PRIMOCANE BLACKBERRIES: THE CHALLENGING TRAITS Heat tolerance of flowers. The first trait identified for need of

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Yeh-Jin Ahn and Na-Hyun Song

plants possessing multiple stress tolerance. We examined here the expression and function of DcHsp17.7 under oxidative and osmotic stress conditions, which are abiotic stresses that frequently accompany heat stress ( Vandenbroucke et al., 2008 ). In