RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Factors Influencing Successful Propagation of Young Tamarack Stem Cuttings

Experiments were conducted over three years to investigate factors that influence rooting and development of stem cuttings of tamarack (Larix laricina [Du Roi] K. Koch). These factors included age of ortet (3-10 years), cutting date (from early spring to late summer), cutting position (upper or lower crown), greenhouse irrigation system, and overwintering environment (shade hall or greenhouse). Greatest success was achieved by taking cuttings from the lower crown of ortets no older than six years of age, either around the time of bud break or in mid-summer when the shoots were showing signs of lignification at the base. Propagation was most successful in an enclosed chamber under an automatic mist irrigation system. The possibility of overwintering the stock outside in their first winter in order to reduce greenhouse costs requires further investigation.


Download this file:

PDF document Download this file — PDF document, 286Kb

Details

Author(s): A. J. Pottinger, E. K. Morgenstern

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1985