PNs hybrids - maple

PNsy from Nisula Forest in Finland - planted July 1967

Pinus sylvestris IUFRO - Solena - 2.5 m spacing

Pinus sylvestris IUFRO - Solena - 1.6 m spacing

Pinussylvestris IUFRO - Solena - PNSY control

Pinus sylvestris IUFRO - Adal - Pinus sylvestris fertilized at 45 years, inc. 2-3.5 cubic metres/ha/yr - now 51 years old

Pinus sylvestris IUFRO - Adal - PNSY fertilized at 45 years, now 51 years

Pinus sylvestris IUFRO - Solena - Pinus sylvestris control

Pinus sylvestris IUFRO - Solena - precommercial, thinned at 13 years, now 34 years old

Pinus sylvestris IUFRO tour - Pinus sylvestris fertilized at 99 years, now 130 years