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Collaboration for Plant Pathogen Strain Identification

Collaboration for Plant Pathogen Strain Identification

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American Phytopathological Society
American Seed Trade Association
Community Plant Variety Office
Euroseeds
GEVES MATREF
International Bremia Evaluation Board
International Seed Federation
International Union for the Protection of New Varieties of Plants
Plantum Isolate Collection
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Emerging Viruses in Cucurbits

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Sporulation of Peronospora farinosa f. sp. spinaciae on a true leaf of an inoculated spinach seedling, representing a susceptible reaction to that race of the pathogen.

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Brown to grey discoloration on and in fruits of stressed hybrid ToMV resistant cultivars.

Light green to yellow angular spots on upper lettuce leaf surface.

Sporulation of Peronospora farinosa f.sp. spinaciae on a true leaf of an inoculated spinach seedling, representing a susceptible reaction to that race of the pathogen.

Infiltration of a leaf is accomplished by gently forcing the bacterial suspension into the underside of the leaf using a sterile syringe without a needle.

Melon seedlings incubating in a growth room after inoculation with Fusarium oxysporum f.sp. melonis.

Sporulation of Peronospora farinosa f. sp. spinaciae on a true leaf of an inoculated spinach seedling, representing a susceptible reaction to that race of the pathogen.

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