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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:
Downy mildew (published) (DOWMILPUB)
Download list of accessions evaluated for this trait
Definition:
Disease index for Downy Mildew at Castle Hayne, NC., published by Winstead (Plant Disease Reporter 41:620-622. 1975)
Crop:
WATERMELON
Category:
Disease descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
1
Responsible Site:
Plant Genetic Resources Conservation Unit (S9) (
S9
)
Studies or environments
S9.WATERMELON
233 Accessions
Distribution of Values for
Downy mildew (published) (DOWMILPUB)
Code
Definition
Number of Accessions
2
Moderately Resistant
3
3
Susceptible
29
4
Severely Diseased
201