Teams and Project Logic Model Chart


Team: PIs
Inputs Activities Outputs Short-term Outcomes Long-term Outcomes Impact
Germplasm assembly (Objective 1): Leslie, Aradhya, Preece, Hackett
Walnut germplasm, including mother trees and pollen of diverse Juglans spp. Generate, propagate, and curate open-pollinated (OP) and hybrid seedlings and clones.  Coordinate w/ phenotyping and genetic mapping teams OP and interspecific hybrid seedling and clonal plants; publications describing propagation technologies Utilization of germplasm for disease resistance evaluations; development of rootstock breeding populations and technologies Commercial availability of clonal rootstock selections; nursery adoption of clonal rootstock propagation technologies Walnut nursery and orchard industries stimulated by  new propagation technologies and superior rootstocks
Phenotyping (Objective 1): Browne, Baumgartner, McKenry, Kluepfel, Coggeshall, Schlarbaum
OP and interspecific hybrid seedling and clonal plants;  preliminary data on disease resistance Evaluate resistance of the walnut rootstock germplasm to soilborne pathogens; communicate data Quantitative data and publications on resistance of walnut rootstock germplasm to pathogens SNP linkage mapping for disease resistance is facilitated; clones with putative resistance to pathogens are produced Validated SNP markers for disease resistance; clones with resistance to pathogens established in field trials Enhanced competitive-ness and efficiency of walnut industry due to improved resistance to key pathogens
Genetic mapping (Objective 2): Aradhya, Dvorak, Dandekar, Neale
OP and interspecific hybrid seedling and clonal plants; data on disease resistance of germplasm; English walnut SNP map and genomic information Create association & biparental maps of disease resistance based on  SNP segregation  and disease resistance in OP and hybrid populations Comparative genetic maps of wild spp.; linkage of  resistance loci & SNP markers; genetic information for use in breeding; genetic publications & databases Mapped  markers linked to  genes conferring disease resistance;  comparative linkage maps for examination of other traits in walnut germplasm Marker assisted selection (MAS) used in rootstock breeding; gene pyramiding; combined resistance to several pathogens in single rootstocks Genetic information will accelerate development of improved walnut rootstocks and improve breeding options
Extension and Education (Objective 3): Hasey, Lampinen, Browne, Baumgartner, McKenry, Kluepfel
Disease resistance information;  new clonal rootstocks Partnering with farm advisors, stakeholders, and WRAP to disseminate new rootstock information; conduct new rootstock orchard demonstration trials Extension publications and web-based outreach describing new rootstocks and their performance  Stakeholder involvement in rootstock evaluations and stewardship; awareness of genetic/ breeding technologies, environmental benefits Rootstock performance information from long- term trials; publications summarizing orchard performance of rootstocks and validating resistance to pathogens Informed grower and nursery adoption of new disease-resistant rootstocks; less dependence on soil fumigation
Novel/Emerging Diseases (Objective 3): Bostock, Browne, Coggeshall, Hasey, Schlarbaum, Seybold
Reports of new/emerging diseases from UCCE Farm Advisors and growers
Orchard surveys to characterize new and emerging threats; assess: 1) host susceptibility to G. morbida, (TCD), 2) host preference of insect vector of G. morbida, 3) Koch’s postulates for PCD
Publications and newsletter articles assessing the incidence and severity of TCD and PCD in walnut  Broadened grower awareness TCD and PCD and their management; Broadened awareness of Juglans genotypes resistant / tolerant to TCD Disease management strategies for TCD and PCD Enhanced resiliency of walnut production due to effective threat management
Economic Analysis (Objective 4): Klonsky, Browne, Baumgartner, Hasey, McKenry, Kluepfel
Growth, survival and yield data from replicated orchard rootstock trials; nursery production data Assemble and analyze actual and estimated cost and income data from industry, nurserymen, growers, and collaborating scientists Extension publications and database entries summarizing cost-benefit analyses for adoption of clonal walnut rootstocks Grower interest and initial plantings of new rootstocks will be facilitated by relevant economic analyses Adoption of new clonal rootstocks with resistance to pathogens; and superior adaptation to new environ-ments Enhanced economic efficiency and sustainability  of walnut nursery and orchard production
Project Management: Kluepfel
Project and evaluation plan Project Manager will coordinate research teams  and determine progress towards objectives and short-term outcomes Objective evaluation to document areas in need of improvement over time Continued modifications and improvement of project to ensure successful conclusion. Accomplishment of project objectives; effective delivery of genetic resistance and genetic knowledge Public and industries will benefit from productive use of Federal grant dollars