Descriptor: Stem Rust Seedling RKRQC (STEMRUSTSE_RKRQC)



 
Definition:
Stem rust seedling reaction RKRQC
Crop:
AEGILOPS
Category:
Disease descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
2
Comment:
[+, ++,-,=] indicate variation within an infection type (see data in 'original value' column)
Responsible Site:
National Small Grains Collection (NSGC)


Studies or environments

Distribution of Values for Stem Rust Seedling RKRQC (STEMRUSTSE_RKRQC)

CodeDefinitionNumber of Accessions
;MOSTLY IMMUNE, NO UREDINIA, BUT NUMEROUS HYPERSENSITIVE FLECKS PRESENT.175
0IMMUNE, NO UREDINIA OR OTHER INDICATIONS OF INFECTION.2
0;NEARLY IMMUNE, NO UREDINIA BUT A FEW HYPERSENSITIVE FLECKS PRESENT.19
1VERY RESISTANT, UREDINIA MINUTE, SURROUNDED BY DISTINCT NECROTIC AREAS.12
2MODERATELY RESISTANT, UREDINIA SMALL TO MEDIUM, USUALLY GREEN ISLANDS SURROUNDED BY A DECIDEDLY CHLOROTIC/NECROTIC BORDER.188
3MODERATELY SUSCEPTIBLE, UREDINIA MEDIUM SIZE COALESCENCE INFREQUENT, NO NECROSIS, BUT CHLOROTIC AREAS MAY BE PRESENT.5
ZORDERED DISTRIBUTION OF VARIABLE-SIZED UREDINIA WITH LARGER UREDINIA AT THE LEAF TIP.1