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Seth D. Wannemuehler, James J. Luby, Chengyan Yue, David S. Bedford, R. Karina Gallardo, and Vicki A. McCracken

conventional breeding methods ( Knapp, 1998 ; Moreau et al., 1998 ; Ru et al., 2016 ). Previous research conducted for various crops has shown the superiority of MAS techniques for breeding. Such crops include almond ( Sorkheh et al., 2017 ), apple ( Edge

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Steven J. McKay, James M. Bradeen, and James J. Luby

small number of more recent, successful introductions (e.g., ‘Fuji’, ‘Gala’, ‘Cripps Pink’, ‘Honeycrisp’) are the results of breeding programs. Numerous biological features in apple hinder the rapid development of new cultivars, including self

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Hiroshi Iwanami, Shigeki Moriya, Nobuhiro Kotoda, Sae Takahashi, and Kazuyuki Abe

been sufficiently evaluated among commercial cultivars, and, at times, it is not considered as a trait for selection in apple breeding, although a cultivar in which the fruit hardly softens is advantageous to the apple market and industry. Crosses

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Kate Evans, Lisa Brutcher, Bonnie Konishi, and Bruce Barritt

fruit quality is a major part of any apple breeding program, and breeders are constantly searching for methods to help measure these important traits. To date, sensory analysis is by far the most preferred form of testing for crispness; however, there is

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Soon Li Teh, Lisa Brutcher, Bonnie Schonberg, and Kate Evans

), as well as reliance on experienced/trained panelists. Since its inception in 1994, the Washington State University apple breeding program (WABP) has amassed fruit textural data (i.e., instrumental measurements and sensory assessment) through routine

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Lidia Lozano, Ignasi Iglesias, Diego Micheletti, Michela Troggio, Satish Kumar, Richard K. Volz, Andrew C. Allan, David Chagné, and Susan E. Gardiner

breeding programs, which often use a limited number of founder individuals, will exhibit LD decay at a longer physical distance than more broadly based germplasm populations that are sampled over extensive natural ranges. GWA was recently reported for apple

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C. Deslauriers, C. Burbidge-Boyd, K. Sutherland, and K. Sanford

65 POSTER SESSION 7 Breeding/Fruits & Nuts

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W.C. Johnson, H.S. Aldwinckle, J.L. Norelli, and H.T. Holleran

50 ORAL SESSION 8 (Abstr. 480–486) Fruits/Nuts: Genetics/Breeding/Biotechnology Monday, 24 July, 2:00–3:45 p.m

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Curt R. Rom, Roy C. Rom, and James N. Moore

The Arkansas apple breeding program began in 1966 with objectives to develop high quality, dual purpose, adapted cultivars with a range of harvest dates and resistance to spring diseases. The program has two goals: 1) to develop red colored apples which are large, tart, firm and ripen between June and August; and, 2) develop yellow apples as a replacement for `Golden Delicious' which are large, typey, without russet and with a range of maturities from July through September. Apples with commercial potential are AA-18 (red, ripens 1-July), AA-44 (red, ripens 15-July), AA-58 (yellow, ripens 29-Aug.), AA-65 (yellow, ripens 11-Sept.) and AA-62 (yellow, ripens 15-Sept.). Data on time of bloom, harvest, fruit size, and fruit storage tests will be presented.

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S. Khanizadeh, Y. Groleau, J.R. DeEll, J. Cousineau, R. Granger, and G. Rousselle

147 POSTER SESSION 16 (Abstr. 070-091) Genetics/Breeding/Biotechnology Wednesday, 26 July, 1:00-2:00 p.m.