Projects

Current projects

Apple

Identifying and Managing Sources of Quarantine Significant post-harvest diseases in Pacific Northwest apple and pear orchards

Manchurian-1 Manchurian-1

Apple

Objective:
The TASC project will allow the replacement of the Manchurian crab apple as a pollinizer and reduce the risk of quarantine problems for exporting apples to China.
Desired and required characteristics for an alternative to Manchurian were identified as follows:
1. Winter hardy to USDA Zone 5 or 6
2. Tree Height — 10'−14'
3. Tree Shape — upright, columnar, narrow, oval
4. Growth Rate — moderately rapid growing
5. Cycle — no tendencies or only slight and manageable tendencies to alternate bear
6. Tree Management Requirements − minimal pruning to maintain consistent flowering
7. Flower — profuse, white, single or double (this still needs to be validated)
8. Bloom Time — compatible with early, mid and late blooming apple cultivars
9. Fruit — small, no interest in commercial value
10. Disease Resistance — Baseline: fireblight, mildew, scab
11. Pollen viability / sterility ratio — 50% or better viability

PI: Stefano Musacchi (WSU, WA)  |  Co-PI: Karen Lewis (WSU, WA), J. Schmidt and Sons Nursery (OR), Morton Arboretum (IL), USDA ARS Plant Genetics Resources Unit (Geneva, NY), Longenecker Horticultural Gardens (UW at Madison, WI), The Holden Arboretum (Kirtland, OH)

Collaborators: Sara Serra

Start date: 2014  |  End date:  2019

Source of funding: USDA: Technical Assistance for Specialty Crops (TASC)


Pear

Dry matter assessment in pear and consumer perception

Dry_Matter-d Dry_Matter-m

Pear

Objective:
1. Determine the reliability of Felix F-750 Produce Quality Meter and therefore if this non-destructive dry matter assessment can be used as at harvest sorting step for more consistent fruit quality categories.
2. Assess if higher dry matter in pear translates into greater consumer liking and acceptability through consumer preference and sensory analysis studies.

PI: Sara Serra  |  Co-PI: Stefano Musacchi, Carolyn Ross

Start date: 2016  |  End date:  2017

Source of funding: North West Pear Bureau


Past projects


Relevant international projects: