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Malcolm W. Smith, Debra L. Gultzow and Toni K. Newman

individual hybrids has been assessed. Reed et al. (2008) observed the same response in intergeneric crosses for ornamental breeding in which different selections of the same species altered the efficiency with which flowering hybrids were produced. Use of

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Phillip A. Wadl, Xinwang Wang, Andrew N. Trigiano, John A. Skinner, Mark T. Windham, Robert N. Trigiano, Timothy A. Rinehart, Sandra M. Reed and Vincent R. Pantalone

Arus, P. 2000 Molecular markers for ornamental breeding Acta Hort. 508 91 98 Bassam, B.J. Cetano-Anollés, G. Gresshoff, P.M. 1991 Fast and sensitive silver staining of DNA in polyacrylamide gels

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Mary Hockenberry Meyer, Stan Hokanson, Susan Galatowitsch and James Luby

selections from the breeding programs. The orchards are not open to the public unless there is an educational tour or field day. The MLA's HRC ornamental breeding program has introduced 51 plants, including 13 azalea ( Rhododendron spp.), nine rose ( Rosa

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He Li and Donglin Zhang

ornamental breeding Acta Hort. 508 55 60 Dirr, M.A. 2011 Manual of woody landscape plants. 6th ed. Stipes Publishing, Champaign, IL Eeckhaut, T. De Keyser, E. Van Huylenbroeck, J. De Riek, J. Van Bockstaele, E. 2007 Application of embryo rescue after

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Andrea Quintana, Rosanna Freyre, Thomas M. Davis and Robert J. Griesbach

). Until recently, blue and orange were the only flower colors available in commercial cultivars Skylover Blue and Sunrise, respectively. Since 2002, the Ornamental Breeding program at the University of New Hampshire (UNH) has released additional commercial

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Phillip A. Wadl, Robert N. Trigiano, Dennis J. Werner, Margaret R. Pooler and Timothy A. Rinehart

differences in timing of flowering. However, all three botanical varieties are sexually compatible as evidenced by complex controlled hybridizations in ornamental breeding programs ( Werner, 2006 ). In cultivated forms, variation in leaf traits generally

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Rui Li, Lu Fan, Jingdong Lin, Mingyang Li, Daofeng Liu and Shunzhao Sui

.R. 1999 Inter-simple sequence repeat (ISSR) amplification for analysis of microsatellite motif frequency and fingerprinting in rice ( Oryza sativa L.) Theor. Appl. Genet. 98 780 792 Cassells, A.C. 2002 Tissue culture for ornamental breeding, p. 139

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Mohammed I. Fetouh, Abdul Kareem, Gary W. Knox, Sandra B. Wilson and Zhanao Deng

et al., 2004 , 2012 ). Multiple ornamental breeding programs in the United States have initiated breeding projects to develop new cultivars with reduced or eliminated invasive potential in major invasive ornamental shrubs or trees ( Anderson, 2007

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Kelly J. Vining, Ryan N. Contreras, Martin Ranik and Steven H. Strauss

to reduce the potential for invasiveness as part of ornamental breeding programs. Prevention of invasiveness by cultural means is often sought too late; once spread has been extensive, eradication is often impossible, extremely expensive, and damaging