The use of rooted cuttings is explored as a means of bulking-up genetically improved families of Sitka spruce, western hemlock, and Douglas-fir for reforestation. The number of propagules produced from a small quantity of seed can be multiplied by taking cuttings from seedling stock plants. All methods are developed for 1-year-old cutting production in containers for consistency with most operational seedling production in British Columbia. This report describes cultural techniques for growing stock plants and rooted cuttings of Sitka spruce, western hemlock, and Douglas-fir, based on 3 years of nursery research and observations. It is concluded that 1-year container cut-ting production is technically feasible for Sitka spruce and western hemlock, but plagiotropism problems could not be overcome for the production of 1-year-old cuttings of Douglas-fir. A discussion of plagiotropism is included.
Working Paper 46 (1058 KB)
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Updated July 24, 2015