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John E. Preece and Gale McGranahan

’s findings and mentioned “prepotency or dominance” when describing traits of one parent manifesting itself over those of the other in the walnut F 1 interspecific hybrids. When describing the segregation in the F 2 generations, he did not use the term

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Amir Rezazadeh and Eric T. Stafne

14 d at 600 h chilling, respectively, to 13, 13, and 13 d at 800 h ( Table 1 ; Fig. 1 ). Fig. 1. Mean number of days (± se ) required for budbreak and accumulated chilling hours for three interspecific hybrid grape cultivars. Days to budbreak

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Kimberly Shearer and Thomas G. Ranney

chromosomes of ( A ) Cornus eydeana (2 n = 2 x = 18), ( B ) C. canadensis (2 n = 4 x = 44), and ( C ) C . ‘KN30-8’ Venus™ (2 n = 3 x = 33). The only triploid identified in this study was the interspecific hybrid C . ‘KN30-8’ (NCSU 2012-008), [( C

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Mary Lewis, Matthew Chappell, Paul A. Thomas, Rebekah C. Maynard, and Ockert Greyvenstein

potentially differing chromosome numbers ( Weitemier et al., 2015 ). Despite potential genetic barriers that would inhibit the creation of interspecific hybrids within Asclepias , successful interspecific hybrids could yield segregating populations with

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Cecil T. Pounders, Eugene K. Blythe, Donna C. Fare, Gary W. Knox, and Jeff L. Sibley

cultivars released during the past 40 years originated from their efforts. Research at the USNA indicated that L. fauriei was cold-hardy and resistant to powdery mildew, coupled with the discovery of a chance interspecific hybrid between this species and

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Patrick J. Conner and Dan MacLean

pigmented and unpigmented muscadine vines. ‘Fennell’s 3-way Hybrid’, V. popenoei × ( V. rotundifolia × V. munsoniana ), was also obtained from the NCGR at Davis, CA. Genomic composition of the various interspecific hybrids ( Table 1 ) was determined by

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Masanori Honjo, Sono Kataoka, Susumu Yui, Masami Morishita, Miyuki Kunihisa, Takayoshi Yano, Megumi Hamano, and Hiromichi Yamazaki

inheritance in interspecific hybrids of Zantedeschia Theor. Appl. Genet. 101 400 406

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Cody L. Smith, Joshua H. Freeman, Nancy Kokalis-Burelle, and William P. Wechter

found together. The use of resistant grafted plants also can reduce the need to manage PPNs in grafted watermelon, which is currently a concern as a result of the nematode susceptibility of interspecific hybrid squash rootstocks. Literature Cited Abawi

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Janel L. Ohletz and J. Brent Loy

for plants grown in greenhouses and other protected structures. The most common rootstocks used in melon grafting are interspecific hybrid squash [ Cucurbita maxima × C. moschata ( King et al., 2010 )]. Because of the vigorous root systems and

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Megan F. Muehlbauer, Josh A. Honig, John M. Capik, Jennifer N. Vaiciunas, and Thomas J. Molnar

identified in Oregon and the clonal and seed-propagated interspecific hybrid selections previously developed by eastern U.S. breeders results in a significant amount of disease-resistant germplasm ( Capik et al., 2013 ; Capik and Molnar, 2012 ). However