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United States Department of Agriculture
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:
MILDEW (MILDEW)
Download list of accessions evaluated for this trait
Definition:
Rating where 1=no disease, 9=severe symptons
Crop:
QUINCE
Category:
Disease descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
2
Minimum Value:
1
Maximum Value:
9
Responsible Site:
National Clonal Germplasm Repository (
COR
)
Studies or environments
CYDONIA.CORVALLIS.2008
80 Accessions
CYDONIA.CORVALLIS.2009
83 Accessions
CYDONIA.CORVALLIS.2010
82 Accessions
Distribution of Values for
MILDEW (MILDEW)
Range
Number of Accessions
1 - 2
60
2 - 2
0
2 - 3
0
3 - 3
64
3 - 4
0
4 - 5
0
5 - 5
40
5 - 6
0
6 - 6
0
6 - 7
14