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Home → Publications → Tree Improvement and Genetics → Northeastern Forest Tree Improvement Conference → 8th Northeastern Forest Tree Improvement Conference (1960) → Induced Variation In The Pattern of Shoot Extension in Five Seed Sources of Picea Abies (L.) Karst.

Induced Variation In The Pattern of Shoot Extension in Five Seed Sources of Picea Abies (L.) Karst.

Can trees be induced to grow in height for a greater part of the growing season? If so, are there disadvantages to prolonging the period of height growth? If a prolonged period of height growth induced artificially produces more wood per acre per year, can we find strains or individuals with genes which bring this about under normal conditions? This investigation is a preliminary exploration of some of these questions The experimental material consisted of five seedlots of Norway spruce. The seedlots were part of an international provenance test and were supplied by Mr. Mark Holst of the Petawawa Forest Experiment Station, Chalk River, Ontario. Three of the seedlots were from Germany, one from Poland and one from Sweden.


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Author(s): J. L. Farrar

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1960