Start Date: Oct 01, 2009
End Date: Jun 30, 2012
We will use conventional breeding, disease-screening, novel propagation techniques in combination with educational outreach to develop, characterize, and deploy walnut and almond/Prunus rootstocks with to soilborne pathogens. The following material will be examined, NCGRU germplasm, existing rootstocks used as standards, and novel genotypes created from controlled crosses. Promising genotypes will be propagated as seed or as clonal plants and used in replicated evaluations of pathogen resistance. Genetic markers associated with resistance will be exploited in rootstock breeding efforts. Rootstocks with superior resistance/tolerance will be grafted/budded with scion cv's and evaluated in commercial nursery/orchard trials. Documents Trust with CDFA. Log 39947.