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Hirotoshi Tsuda, Hisato Kunitake, Mai Yamasaki, Haruki Komatsu, and Katsunori Yoshioka

production of blueberries using hybrids created in this study and subsequent generations could extend the harvest season and allow off-season fruit production during periods of high market prices. Recently, breeding programs have focused on fruit quality

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Daniel J. Bell, Lisa J. Rowland, John Stommel, and Frank A. Drummond

of Canada. 1. Vaccinium angustifolium , sweet lowbush blueberry Can. Field-Naturalist 93 415 430 Hallauer, A.R. Miranda, J.B. 1988 Quantitative genetics in maize breeding 2nd Ed Iowa State University Press

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Daniel J. Bell, Lisa J. Rowland, James J. Polashock, and Frank A. Drummond

Lowbush blueberry ( Vaccinium angustifolium , section Cyanococcus A. Gray, Ericaceae) is a unique agricultural crop of northeastern North America in that it is wild in origin. Plants are not sown but have been left to reclaim burned and cleared

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Lisa J. Rowland, Elizabeth L. Ogden, Fumiomi Takeda, David Michael Glenn, Mark K. Ehlenfeldt, and Bryan T. Vinyard

). Here, we have investigated whether there is genotypic variation in frost tolerance of open highbush blueberry flowers that could be exploited in breeding highbush cultivars that are more tolerant to late winter/early spring frosts. Frost tolerance of

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Lisa J. Rowland, Elizabeth L. Ogden, Mark K. Ehlenfeldt, and Rajeev Arora

understood. The United States is the world's leading producer of blueberries. In a survey of blueberry research and extension scientists in the United States, lack of winter hardiness and susceptibility to spring frosts were identified as two of the most

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Mark K. Ehlenfeldt, Lisa J. Rowland, Elizabeth L. Ogden, and Bryan T. Vinyard

There are over 60,000 ha of cultivated blueberries in North America ( Ballington, 2001 ; Trinka, 1996 ), and the United States is the world's leading producer. In a survey of blueberry research and extension scientists in the United States, lack of

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Paul M. Lyrene

averaged 7.8. This compares with an average of more than 26 large seeds per berry obtained in 74 highbush cultivar × highbush cultivar crosses made in the Florida blueberry breeding program ( Chavez and Lyrene, 2009 ). Some fertility reduction in the F 1

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Peter Boches, Nahla V. Bassil, and Lisa Rowland

Sixty-nine accessions representing wild and domesticated highbush blueberry (Vaccinium corymbosum L.) germplasm were genotyped using 28 simple sequence repeats (SSRs). A total of 627 alleles was detected and unique fingerprints were generated for all accessions. Suspected duplicate accessions of `Coville' and `Ivanhoe' had DNA fingerprints that were identical to `Coville' and `Ivanhoe', respectively. Genetic similarity measures placed wild and cultivated blueberries in separate groups. Northern highbush blueberries grouped among ancestral clones that were used extensively in blueberry breeding such as `Rubel' and `Stanley'. Southern highbush blueberries formed a separate group from northern highbush blueberries. The microsatellite markers used here show excellent promise for further use in germplasm identification, in genetic studies of wild Vaccinium L. populations, and for constructing linkage maps.

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Céline Jouquand, Craig Chandler, Anne Plotto, and Kevin Goodner

of Florida breeding program; and 2) the impact of harvest date on fruit chemical and sensory characteristics. This information may help identify selections that are complementary to ‘Festival’. Materials and Methods Plant material. Five

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John R. Clark and Curt R. Rom

Small fruit production in the southern United States has been impacted greatly by fruit breeders this century. This workshop, co-sponsored by the American Pomological Society, includes presentations from individuals who have contributed collectively over 150 years to small fruit and grape breeding. James N. Moore has conducted breeding at the University of Arkansas, developing 30 cultivars. His presentation on brambles outlines achievements and future opportunities for improvement. Arlen Draper has been involved with the development of 61 small fruit cultivars while working with the USDA-ARS with an emphasis on blueberry. His presentation focuses on blueberry breeding and provides insights into the future of new blueberry cultivar developments. Gene Galletta has conducted small fruit breeding at North Carolina State University and USDA-ARS and has been involved with the development of 50 cultivars. His presentation reflects on the history of strawberry breeding in the South and the challenges that lie ahead. Ron Lane has served as a fruit breeder and horticulturist at the University of Georgia Experiment Station at Griffin and his work has emphasized the development of muscadine grape cultivars. The past and future of muscadine and bunch grape breeding is discussed in his paper. Articles from all authors in this workshop will be published in Fruit Varieties Journal in 1997.