Descriptor: Heterotic Group (HETEROTIC)



 
Definition:
The heterotic group an accession belongs to for breeding purposes. When forming hybrids that demonstrate heterosis (high performance), accessions from different heterotic groups should be crossed.
Crop:
MAIZE
Category:
Production descriptors
Status:
Data Type:
Alpha/numeric descriptor
Maximum Length:
10
Responsible Site:
North Central Regional Plant Introduction Station  (NC7)

Distribution of Values for Heterotic Group (HETEROTIC)

CodeDefinitionNumber of Accessions
NS(NS) Belongs to the non-stiff stalk combining group. Accessions belonging to this group produce higher performing hybrids when combined with stiff stalk accessions. Mo17 would be an example of a non-stiff stalk inbred line.207
SS(SS) Belongs to the stiff stalk combining group. This group represented by Iowa Stiff Stalk Synthetic (BSSS) or inbred B73 combines best with inbreds designated as non-stiff stalk (NS).197