Descriptor: Stem Rust Seedling HNLQ (STEMRUSTSE_HNLQ)



 
Definition:
Seedling infection types produced by Puccinia graminis f.sp. tritici - HNLQ.
Crop:
WHEAT
Category:
Disease descriptors
Status:
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
2
Comment:
[+, ++, -, =] indicate variation within an infection; c, b, n indicate chlorosis, browning,
Responsible Site:
National Small Grains Collection (NSGC)


Studies or environments

Distribution of Values for Stem Rust Seedling HNLQ (STEMRUSTSE_HNLQ)

CodeDefinitionNumber of Accessions
;MOSTLY IMMUNE, NO UREDIA, BUT NUMEROUS HYPERSENSITIVE FLECKS PRESENT450
0IMMUNE; NO UREDIA OR OTHER INDICATIONS OF INFECTION1076
0;NEARLY IMMUNE; NO UREDIA BUT A FEW HYPERSENSITIVE FLECKS PRESENT616
1VERY RESISTANT; UREDIA MINUTE, SURROUNDED BY DISTINCT NECROTIC AREAS182
2MODERATELY RESISTANT; UREDIA SMALL TO MEDIUM, USUALLY GREEN ISLANDS SURROUNDED BY A DECIDEDLY CHLOROTIC/NECROTIC BORDER395
3MODERATELY SUSCEPTIBLE; UREDIA MEDIUM SIZE COALESCENCE INFREQUENT, NO NECROSIS, BUT CHLOROTIC AREAS MAYBE PRESENT1
SVERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO NECROSIS BUT CHLOROSIS MAY BE PRESENT1976
XHETEROGENEOUS; UREDIA VARIABLE, SOMETIMES INCLUDING ALL INFECTION TYPES AND INTERGRADATIONS ON THE SAME LEAF8