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Yuee Tian, Zhiping Che, Di Sun, Yuanyuan Yang, Xiaomin Lin, Shengming Liu, Xiaoyu Liu and Jie Gao

of Henan province showed that gray mold has become an important limiting factor for tree peony growth and development ( Yang et al., 2017 ). As the causal agent of gray mold, B. cinerea can infect more than 200 plant species and usually cause rot of

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Rebecca Grumet and Marivi Colle

appeared to have stronger and more consistent resistance in subsequent generations as expressed by either no lesion development or lesions largely limited to the site of inoculation. Here we report the development of a PI 109483-derived S 6 progeny line

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restricted lesion at, or close to, the root proximal end. In many cases the lesion necrosis expands internally. Arancibia et al. (p. 288) found that sweetpotato tip rot incidence was associated with preharvest foliar applications of ethephon and that curing

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Ji Hae Jun, Eun Young Nam, Kyeong Ho Chung, Seok Kyu Yun, Jung Hyun Kwon, Ik Koo Yun, Yong Bum Kwack, Sung Jong Kim and Kang Hee Cho

‘Summer Fantasia’, a new Japanese plum ( Prunus salicina Lindl.), originated from a cross between ‘Soldam’ and ‘Taiyo’ made in 1999 at the National Institute of Horticultural & Herbal Science (NIHHS) of the Rural Development Administration (RDA) in

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Randy G. Gardner and Dilip R. Panthee

adapted fresh-market tomato backgrounds. The pedigree of the two breeding lines traces back to NC 215E-1(93), a large-fruited determinate line with moderate resistance to the foliage blight phase of early blight and high resistance to the stem lesion phase

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Joseph J. Rothleutner, Ryan N. Contreras, Virginia O. Stockwell and James S. Owen

). The disease can especially be problematic in areas where warm temperatures, rain, and humid conditions favor bacterial growth and disease development such as the south, east, and midwest regions of the United States as well as areas in Europe where the

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Bruce W. Wood, Charles C. Reilly, Clive H. Bock and Michael W. Hotchkiss

, temperature, leaf wetness, and leaf age on infection and lesion development of pecan scab Phytopathology 88 1294 1301 Wood, B. Gottwald, T. Payne, J. 1984 Influence of single applications of fungicides on net photosynthesis of pecan Plant Dis. 68 427 428 Wood

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Thomas W. Walters, John N. Pinkerton, Ekaterini Riga, Inga A. Zasada, Michael Particka, Harvey A. Yoshida and Chris Ishida

–parasitic nematode species are of importance in red raspberry production in the Pacific northwestern United States: root lesion nematodes and the dagger nematode species Xiphinema bakeri and X. americanum ( McElroy, 1992 ). RLN is a migratory endoparasite that

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Joseph N. Wolukau, Xiaohui Zhou and JinFeng Chen

successfully used to manage GSB, repeated use of fungicides is not advisable because of the negative impact on the environment. In fact, development of resistance to some systemic benzimidazole fungicides used against D. bryoniae has been reported from

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Gayle M. Volk, Christopher M. Richards, Adam D. Henk, Ann A. Reilley, Patrick A. Reeves, Philip L. Forsline and Herb S. Aldwinckle

incorporated into breeding programs using either marker-assisted breeding or through the use of transformation. Both of these methods are dependent on having materials that possess the traits of interest. Development and use of core collections whereby large