Project Number: 5306-22000-015-18
Project Type: General Cooperative Agreement

Start Date: Sep 01, 2012
End Date: Aug 31, 2014

Objective:
Evaluate J. nigra germplasm collection in Missouri for susceptibility to Thousand Cankers Disease.

Approach:
1)screen multiple clonal replicates of each accession (propagated at the University of Missouri) for Thousand Cankers Disease Susceptibility. 2)Establish new J. nigra clonal plantings on sites proximal to know Thousand Cankers Disease outbreaks in Tennessee. 3)Establish new large-scale plantings of J. nigra seedling material representing 33 provenances from 10 different states to quantify the extent of geographic variation associated with Thousand Cankers Disease susceptibility. 4)provide a critical test of whether the innate selectivity of the vector-pathogen complex for certain mature trees noted in the USDA, ARS, National Clonal Germplasm Repository applies to juvenile trees.