Pyrus Genetic Resources (Pear)

National Plant Germplasm System Pyrus resources: NCGR Pear Catalogs Catalog of all Pyrus Cultivars and Selections at NCGR-Corvallis - with links to GRIN accession database Special Catalog Subsets: Asian Cultivars and Selections European Cultivars and Selections Rootstock Cultivars and Selections Perry Pears Ancient Cultivars Fire Blight Resistant Pears Psylla Resistant Pears Low Chilling Requirement Pears Catalog of Pyrus Species Maintained as Trees at NCGR-Corvallis - with links to GRIN accession database Catalog of Pyrus Accessions Available as in vitro Cultures at NCGR-Corvallis - with links to GRIN accession database Catalog of Pyrus Seed Accessions at NCGR-Corvallis - with links to GRIN accession database Pyrus Core Subset - The 'core' is a subset of the total pear germplasm collection consisting of approximately 10% of accessions and representing the maximum genetic diversity of the genus. GRIN Database - National Plant Germplasm System Retrieve List of Pyrus species from GRIN taxonomy database Summary of Pyrus germplasm collection by species Summary of Pyrus germplasm collection by country of origin Membership of Pyrus Crop Germplasm Committee (CGC) Query for Pyrus accessions based on evaluation results Crop descriptors for Pyrus Query descriptors using short form Query descriptors using long form Pyrus Accessions - Keyword Search Historic Fruits Pear Illustrations from The Pears of New York USDA Pomological Watercolors - 19th and 20th century illustrations from the National Agricultural Library. Ancient Pear Cultivars - Descriptions of some ancient pears preserved at NCGR-Corvallis Pears from the Past - Brief descriptions of NCGR pear accessions originating prior to 1850. The Endicott Pear - Oldest fruit tree in North America The Hager Grove Pear - Salem, Oregon 1850 Henderson Luelling - First fruit cultivars brought to the Oregon Territory in 1846. Felix Gillet Nursery, Nevada City, California 1871 The Book of Pears and Plums - by Edward Bartrum 1903. Full text and images from the Core Historical Literature of Agriculture, Cornell University Interesting Repository Accessions Le Nain Vert - Genetic Dwarf Pear Old Home x Farmingdale - The Romeo and Juliet of Pear Rootstocks Sorbopyrus - An Interesting Intergeneric Hybrid Between Pear and Mountain Ash. Pyrus regellii from Kazakhstan - has finely dissected leaves like a Japanese maple..

Links to Other Pear Resources: Cultivars and Species, Conservation ECP/GR Pyrus Database and Resources Rare and Endangered Pyrus species as retrieved from from the IUCN Red List of Threatened Species. US Plant Patent Database - search for pears - Retrieve the full text of plant patents issued since 1976 American Pomological Society Brogdale Horticultural Trust - National Fruit Trials in England Pear Varieties Important in the Pacific Northwest US California Rare Fruit Growers Home Orchard Society North American Fruit Explorers Seed Savers Exchange Varieties De Poires - A French page with photographs and brief descriptions of modern and classic pear cultivars. Pests and Diseases Oregon Plant Disease Online Reference - Pears Pome Fruit Pathogen Collections Maintained at NCGR-Corvallis Common Names of Pear Diseases Compiled by the American Phytopathological Society Internationally Recommended Methods for Detection of Pear Viruses Descriptions of Pome Fruit Viruses and Virus-like Diseases from NRSP-5 Post-Harvest Diseases of Pear - Images and Descriptions Fabraea Leaf Spot - Fact Sheet from West Virginia University Fire Blight - Fact Sheet from West Virginia University Pear Scab - Fact Sheet from West Virginia University Commercial Production - Propagation Integrated Fruit Production from the Oregon State University OrchardNet The Washington Tree Fruit Directory The California Pear Industry Pages The California Fruit and Nut Information Center at U.C. Davis USA Pears - The Pear Bureau Northwest Industry Pages Asian Pears - by James Beutell Beutel, J.A. 1990. Asian pears. p. 304-309. In: J. Janick and J.E. Simon (eds.), Advances in new crops. Timber Press,Portland, OR. The Virtual Orchard - from the University of Vermont - mainly apples. Pyrus Seed Germination - PDF file of recently updated Pyrus chapter in the USDA Forest Service Handbook "Woody Plant Seed Manual." Woody Plant Seed Manual - index to genera Search the Web for Pear Images

Comments: jpostman@ars-grin.gov
page last updated October 2005
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