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Seed Count and Berry Size in Relation to Pollinator Level and Harvest Date for the Highbush Blueberry, Vaccinium corymbosum 1

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Average size of highbush blueberries was found to be related directly to average seed number. Both variables were related directly to pollinator level and time of harvest. Differences in seed number accounted for only a pan of the total variability in berry size when individual berries were evaluated. During the early-season harvest and under conditions of high pollinator levels, seed number accounted for as low as 10% of the observed size variation. By contrast, late in the season or under conditions of low pollinator levels, this factor accounted for as much as 59% of the observed variation in berry size. Probably berry size increased considerably when berries had a high complement of seeds compared with those that had few but after a seed minimum was present further size increased was not proportional to increased seed number. On the average, about 50% of the observed variation in berry size must be explained by factors other than seed number.

Document Type: Research Article

Publication date: December 1, 1969

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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