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Seedling growth plotted against Nitrogen concentration to show a linear relationship.

Seedling harvester developed at nursery, note manner of movement of seedlings to remove soil. Lifting, seedling harvester.

Seedling harvester lifting jack pine. Jack pine, 2+0, lifting.

Seedling harvester used to lift seedlings. Jack pine, 2+0, lifting.

Black spruce paper pot, sown March/1972, outplanted July/1972, extr. from ground August 1972. N.B. degree of root development and location. this is same seedling as slide 804. Miramichi, J.D.Irving.

White spruce tube seedling two yrs. after out planting. Atikokan

"Super seedling" selection in white spruce 2+2 stock. Orono Nursery

Seedling showing evidence of frost-heaving in seedbed. Black spruce, 2+0, seedbed.

Pine seedlings germinating in plastic house Fort Frances

Black spruce seeded Jan. 1973 in 308 pots. Ready for planting Aug 73. Juniper, J.D.Irving
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