Screening Highbush Blueberry Cultivars for Resistance to the Aphid Illinoia pepperi1
| Autor: | James F. Hancock, Nancy L. Schulte, James H. Siefker, Marvin P. Pritts, Janet M. Roueche |
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| Rok vydání: | 1982 |
| Předmět: | |
| Zdroj: | HortScience. 17:362-363 |
| ISSN: | 2327-9834 0018-5345 |
| Popis: | Sixteen cultivars of blueberry (Vaccinium corymbosum L.) were field screened for resistance to the blueberry aphid Illinoia pepperi (McGillivary), the vector of blueberry shoestring virus. Significant differences were observed with ‘Bluejay’, ‘Northland’, ‘Bluetta’ and ‘Bluehaven’ supporting the lowest numbers, while ‘Spartan’, ‘Darrow’, ‘Lateblue’, ‘Coville’ and ‘Jersey’ carried the highest numbers. There was no significant correlation between aphid number and new shoot number, percentage of shoots with new growth, length of new growth, leaf length or leaf width. Half of the aphids were found in the lower 1/3 of the bushes. |
| Databáze: | OpenAIRE |
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