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Agricultural Research Service
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Effective Jan. 1, 2025, the U.S. National Plant Germplasm System will modify its SMTA acceptance policy to distinguish between propagative and non-propagative germplasm.
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USDA National Plant Germplasm System
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Descriptor:
POWDERY MILDEW (POWDERYMIL)
Download list of accessions evaluated for this trait
Definition:
Powdery Mildew (Erysiphe chichoracearum dc) - ranges in degree of infection within an accession.
Crop:
NC7-CUCUMIS
Category:
Disease descriptors
Status:
Data Type:
Alpha/numeric descriptor
Maximum Length:
10
Responsible Site:
North Central Regional Plant Introduction Station (
NC7
)
Studies or environments
CUCS.AMES.COBS.HISTORICAL
120 Accessions
Distribution of Values for
POWDERY MILDEW (POWDERYMIL)
Code
Definition
Number of Accessions
0
NO SYMPTOMS OBSERVED
16
1
VERY SLIGHT INFECTION
5
2
SLIGHT INFECTION
7
3
MODERATE INFECTION
17
4
SEVERE INFECTION
50
5
VERY SEVERE INFECTION
37