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Stanta Cotner, John R. Clark and Eric T. Stafne

A study was conducted in the Winter–Spring 2004 to evaluate the effects of seed (pyrene) scarification period on blackberry (Rubus L. subgenus Rubus) genotypes that had a range of seed weights. The study was done in an attempt to identify optimum scarification period for variable seed weights for the purpose of increasing germination of blackberry seeds produced from hybridizations in the Arkansas blackberry breeding program. Scarification treatments of 1, 2, or 3 hours were used on 14 genotypes. Seeds were then stratified for 3.5 months and sowed on a commercial potting medium in a heated greenhouse. Germinating seedlings were counted over a 15-week period and total germination determined. Data analysis indicated significant genotype effect on germination but no scarification treatment nor genotype × scarification treatment interaction significance. The results indicated that scarification period did not affect germination and varying this period predicated on seed weight was not beneficial based on the genotypes used in the study.

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J.B. Magee, B.J. Smith, C.E. Gupton and J.M. Spiers

The southern highbush (Vaccinium mostly corymbosum) blueberry cultivars Jubilee, Magnolia, and Pearl River, released by the USDA in 1994, were compared with `Premier' and `Climax', two widely planted rabbiteye (V. ashei) cultivars, on the basis of flowering and harvest dates, yield, and physical and chemical quality parameters. The southern highbush cultivars flowered later and ripened at least 1 week before `Climax', one of the earliest rabbiteyes. `Pearl River' berries had less waxy “bloom” and appeared almost black when fully ripe; they had significantly less anthocyanins than the other cultivars compared. `Premier' was lower in titratable acidity and higher in sugars than the southern highbush cultivars. Although data analysis indicated statistical differences in glucose and fructose concentrations among the other four cultivars, these differences were not pronounced. Based on the quality factors used in this study, the southern highbush cultivars compared acceptably to the rabbiteye cultivars.

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Karen L. Panter, Rebecca E. Ashley, Karin M. Guernsey and Caroline M. Johnson

administration; and David Legg, Department of Renewable Resources, University of Wyoming, Laramie, for assistance with data analysis. Recognition is due to Mr. Shawn Sigstedt for his pioneering work in cultivating osha.

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John C. Beaulieu

managing, tagging, and supplying anthesis-tagged immature and mature cantaloupe fruit; Jeanne M. Lea for volatile data analysis; and Amber D. Harts and James A. Miller for laboratory assistance. Statistical advice and support were obtained from Vicki

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Margrethe Serek and Arne Skytt Andersen

We thank Michael S. Reid for critical review of the manuscript, F. Jackson Hills and Gail Nishimoto for advice on data analysis, and Ove Nielsen for kindly supplying the roses. This project was supported by a grant from the Danish

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Malgorzata Serek

I thank Ante Skytt Andersen for fruitful discussions during this research, Michael S. Reid for critical review of the manuscript, F. Jackson Hills and Gail Nishimoto for advice on data analysis, and rose grower Ove Nielsen for kindly

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Suzanne S. Sanxter, Kate A. Nishijima and Harvey T. Chan Jr.

We thank Nicanor Liquido and Linda Whitehand for their suggestions on statistical and data analysis. Reference to a company and (or) product named by the U.S. Dept. of Agriculture is only for purposes of information and does not imply

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Pamela D. Adams, Nancy Kokalis-Burelle and William H. Basinger

purpose of providing specific information and does not imply recommendation or endorsement by the United States Department of Agriculture. The authors would like to acknowledge Amanda Rinehart for assistance with data analysis and manuscript preparation

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Stanislav V. Magnitskiy, Claudio C. Pasian, Mark A. Bennett and James D. Metzger

growing plants, David Tay for help with seed coating equipment and technique, and Bert Bishop for assistance in data analysis. Salaries and research support were provided in part by State and Federal funds appropriated to the Ohio Agricultural Research and

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Lambert B. McCarty, Landon C. Miller and Daniel L. Colvin

contribution no. 2556 of the South' Carolina Agr. Expt. Sta., Clemson Univ. We are grateful to Larry Nelson for assistance in data analysis. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this