Descriptor: Common Smut (COMMON-SMUT)



 
Definition:
Plant response to the common smut organism (Ustilago zeae(Beckm.) Unger = U. maydis (DC.) Corda)). The trait is coded 1-9 with 1 representing the most resistant response and 9 the most susceptible response.
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 Common Smut (COMMON-SMUT)

CodeDefinitionNumber of Accessions
1VERY FEW PLANTS WITH SMALL GALLS.20
2(0 = NO SYMPTOMS, 9 = SEVERE DISEASE DEVLOPMENT)92
3FEW PLANTS WITH MODERATE SIZED GALLS.169
4(0 = NO SYMPTOMS, 9 = SEVERE DISEASE DEVLOPMENT)145
5MODERATE NUMBER OF GALLS; SOME LARGE.417
6(0 = NO SYMPTOMS, 9 = SEVERE DISEASE DEVLOPMENT)196
7MANY PLANTS INFECTED; MOST GALLS LARGE.366
8(0 = NO SYMPTOMS, 9 = SEVERE DISEASE DEVLOPMENT)123
9MOST PLANTS INFECTED; LARGE GALLS; SEVERE INJURY.648