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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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Descriptor:
Crown Rust Reaction 264A (CRUSTREACT_264A)
Download list of accessions evaluated for this trait
Definition:
Reaction to Crown Rust 264A (incited by Puccinia coronata). See also Crown Rust Severity descriptor.
Crop:
OAT
Category:
Disease descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
5
Responsible Site:
National Small Grains Collection (
NSGC
)
Studies or environments
OAT.CROWNRUST.AMES.GH.83
2065 Accessions
OAT.CROWNRUST.AMES.GH.84
2121 Accessions
OAT.CROWNRUST.AMES.GH.85
4234 Accessions
OAT.CROWNRUST.AMES.GH.86
1971 Accessions
Distribution of Values for
Crown Rust Reaction 264A (CRUSTREACT_264A)
Code
Definition
Number of Accessions
HR
HIGHLY RESISTANT
11
MR
MODERATELY RESISTANT
35
MS
MODERATELY SUSCEPTIBLE
63
R
RESISTANT
88
S
SUSCEPTIBLE
10194