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Picea abies - 1938 provenance trial, seed sown 1940, Denmark
Picea abies - 1938 provenance trial, seed sown 1940. Marked tree for controlled x’s. 24 years of age, Denmark
PNb provenance trial - view from outside
PNb provenance trial - view from outside
PNs hybrids - maple
PNs hybrids - maple
PNs & blister rust. Seedlings 3-4 years old with Ribes in bed
PNs & blister rust. Seedlings 3-4 years old with Ribes in bed, some resistance?
PNs & blister rust (a year later) - bed of Pw with 4 seedlings live
PNs & blister rust (a year later) - bed of Pw with 4 seedlings live
PNs & blister rust - grafted stock of resistant seedlings
PNs & blister rust - grafted stock of resistant seedlings
Pisgah Forest, North Carolina - Pinus strobus provenance trial - “Quebec” (large) on right verses Iowa (small)
Pisgah Forest, NC - Pinus strobus provenance trial - “Quebec” (large) on right verses Iowa (small)
Georgia Pacific Nursery, Cottage Grove, Oregon - grafting in Pis
Georgia Pacific Nursery, Cottage Grove, Oregon - grafting in Pis
Orono - graft on PNs - field grafting after 10 years
Orono - graft on PNs - field grafting after 10 years
Red Rock, British Columbia - seed orchard - aerial view
Red Rock, British Columbia - seed orchard - aerial view