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threatened endangered species ( D'Antonio and Vitousek, 1992 ). One way that invasive plants displace natives and reduce biodiversity of forest ecosystems is by producing many seeds that are capable of germination ( Lehrer and Brand, 2003 ). Heavy flower

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’ sweetpotato, released by the North Carolina Agricultural Research Service in 2005, accounts for 88% of certified seed root acreage in North Carolina, followed by ‘Beauregard’ and ‘Evangeline’ at 5% and 3%, respectively ( North Carolina Crop Improvement

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Authors:
the Garden Seed Research Committee American Seed Trade Association
and

Abstract

Eighteen prior lists of new vegetable varieties introduced since 1936 were published in Vols. 63, 65, 67, 69, 70, 75, 77, 82, 84, 86, 88, 90 and 92 of Proceedings of the American Society for Horticultural Science, and Vols. 4(1), 5(3) and 6(2) of HortScience. A compilation of list I through XV entitled Descriptive List of Vegetable Varieties was published jointly by the American Seed Trade Association, Inc. and the American Society for Horticultural Science in September 1972 and can be obtained from either organization.

The following abbreviations are used: exp. desig.–experimental designation; orig.–originated at or by; intr.–introduced by; par.–parentage or parents; char.–outstanding characteristics; res.–resistant to; tol.–tolerant to; sim .–similar to or resembles; sel.–selection or selected; adapt.–adapted to or adaptation.

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133 POSTER SESSION 20 Seed Establishment/Cross-Commodity

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Ratibida columnifera is readily available as seed and is a common component of many wildflower seed mixes ( U.S. Department of Agriculture Natural Resources Conservation Service, 2006 ). To develop novel germplasm from native sources into a

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not mentioned. We thank Aris Sigle for supplying seed for this research and P. Kasturi and B. Beeson of Radford Univ., Radford, Vs., for providing partial funding for this project through the Radford Research Seed Foundation. The cost of publishing

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1 To whom reprint requests should be addressed. Current address: Bodger Seeds, 1851 W. Olive, Lompoc, CA 93436. Journal paper no. J-14892 of the Iowa Agriculture and Home Economics Experiment Station, Ames

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and near the soil surface, thus bringing a saline solution in contact with the seeds ( Almansouri et al., 2001 ) and turf species can exhibit greater salt stress during establishment than as mature plants ( Duncan et al., 2009 ). Controlled environment

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