Descriptor: Northern Leaf Blight Race O (NORTHERN-LEAF-BLIGHT_RACE-O)



 
Definition:
Leaf response to northern leaf blight race O organism (Exserhilum turcicum [Pass.] Leonard & Suggs - previous name was Helminthosporium turcicum.
Crop:
MAIZE
Category:
Disease descriptors
Status:
Data Type:
Alpha/numeric descriptor
Maximum Length:
1
Responsible Site:
North Central Regional Plant Introduction Station  (NC7)

Distribution of Values for Northern Leaf Blight Race O (NORTHERN-LEAF-BLIGHT_RACE-O)

CodeDefinitionNumber of Accessions
1(1) VERY FEW LESIONS; LITTLE OR NO SPORULATION5
2(2) (0 = NO SYMPTOMS OBSERVED, 9 = SEVERE DISEASE DEVELOPMENT)29
3(3) OCCASIONAL LESIONS; SPORULATION SLIGHT.38
4(4) (0 = NO SYMPTOMS OBSERVED, 9 = SEVERE DISEASE DEVELOPMENT)76
5(5) MANY LESIONS; ABUNDANT SPORULATION.132
6(6) (0 = NO SYMPTOMS OBSERVED, 9 = SEVERE DISEASE DEVELOPMENT)149
7(7) (0 = NO SYMPTOMS OBSERVED, 9 = SEVERE DISEASE DEVELOPMENT)104
8(8) (0 = NO SYMPTOMS OBSERVED, 9 = SEVERE DISEASE DEVELOPMENT)39
9(9) SEVERE DISEASE DEVELOPMENT, PLANTS OFTEN DEAD4