Differential reaction of apple varieties To Gymnosporangium Juniperi-Virginianae

dc.contributor.author McNew, George
dc.contributor.department Extension and Experiment Station Publications
dc.date 2018-02-18T13:04:41.000
dc.date.accessioned 2020-06-30T06:57:33Z
dc.date.available 2020-06-30T06:57:33Z
dc.date.embargo 2017-06-01
dc.date.issued 2017-06-01
dc.description.abstract <p>Most of the collections of Gymnosporangium juniperi-virginianae from seven states and different localities in Iowa produced aecidia on Bechtel's Crab, Wealthy, Jonathan and Rome Beauty; flecks with or without spermogonia on York Imperial, Tolman, Ben Davis, Maiden Blush, Oldenburg, Turley and Grimes Golden and flecks on Delicious and Northwestern Greening.</p> <p>The collections could be classified into eight groups on the basis of the differential reactions of certain of these varieties. Four of these groups were considered as possible parasitic races with the following differential reactions : The first one produced aecidia on Tolman and York Imperial; the second caused a diffuse spreading fleck on York Imperial and defoliation of Jonathan after large aecidial sori had been produced ; the third failed to infect the varieties Delicious and Northwestern Greening; and the fourth one defoliated Turley after producing spermogonia.</p>
dc.identifier archive/lib.dr.iastate.edu/researchbulletin/vol22/iss245/1/
dc.identifier.articleid 1259
dc.identifier.contextkey 10239659
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath researchbulletin/vol22/iss245/1
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/62565
dc.source.bitstream archive/lib.dr.iastate.edu/researchbulletin/vol22/iss245/1/AgriculturalResearchBulletin_v022_b245.pdf|||Fri Jan 14 17:40:39 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Botany
dc.subject.disciplines Plant Pathology
dc.title Differential reaction of apple varieties To Gymnosporangium Juniperi-Virginianae
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isJournalIssueOfPublication e33076a1-09c4-448d-a3de-b6d21b1a016b
relation.isOrgUnitOfPublication 302bd0e8-f82f-406a-88b5-c8f956b5f77b
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