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Longleaf pine in "grass" stage. It may remain in this stage for several years and is resistant to fire. Height growth begins when root collar D. is =>2.5cm

Longleaf pine that has emerged from the grass stage

White & red pine and spruce regeneration. 11 yrs after cut in Quetico Pk. Sandy Bay. Person in 242b is Orie Loucks

White & red pine and spruce regeneration. 11 yrs after cut in Quetico Pk. Sandy Bay. Person in 242b is Orie Loucks.

Natural regeneration of P. densigflora after clearcut of over-mature stand (background). N.B. heavy competition. Nishine Japan. Photo Carl Heimburger.

Planted Pices glehnii at Kuriyama, Japan. Photo Carl Heimburger

Provenance trials. Miyamori, Japan. Photo Carl Heimburger

Pruned Larix leptolepis seed orchard, Tohoky Forest, Takisawa. Photo Carl Heimburger

Potassium fertilized Douglas fir, sampling cones. Person is Bruce Devitt. Photo Mike Meagher. Mt. Prevost near Duncan.

Potassium fertilized Douglas fir, sampling cones. Photo Mike Meagher. Mt.Prevost near Duncan