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Host resistance in Pyrus to Fabraea leaf spot
- Abstract::
- Pear leaf spot, caused by the fungus Fabraea maculata Atk. (anamorph: Entomosporium mespili (DC.) Sacc.) occurs in most areas of the world where pears are grown. Most major cultivars of the european pear, P. communis L., for which data are available are susceptible. Ratings appearing in the literature are sometimes contradictory. This study evaluated resistance/susceptibility within a diverse collection of Pyrus cultivars and other germplasm in a randomized and replicated nursery plot using quantitative measures of disease incidence and severity. The least susceptible genotypes were the P. communis cultivars 'Beurre Fouqueray' and 'Bartlett', the P. pyrifolia cultivars 'Imamura Aki', and the P. communis x P. ussuriensis hybrid NJ 477643275.
- Author(s):
-
Bell, R.L. , Zwet, T. van der.
- Subject(s):
-
Pyrus communis , pears , Diplocarpon mespili , plant pathogenic fungi , fungal diseases of plants , foliar diseases , leaf spotting , disease resistance , genetic resistance , host plants , cultivars , plant nurseries
- Description:
- Includes references
- Source:
- HortScience : a publication of the American Society for Horticultural Science 2005 Feb., v. 40, no. 1
- Language:
- English
- Year:
- 2005
- Collection:
-
Journal Articles, USDA Authors, Peer-Reviewed
- File:
-
Download [PDF]
- Rights:
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
