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Sowing Sized Seed of Western White Pine in a Containerized Nursery

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Sorting seed by size has been reported as a potential method to improve seedling uniformity and increase crop yields. Seeds of rust-resistant western white pine (Pinus monticola Dougl. ex D. Don), harvested in 1983 at the Moscow, Idaho, White Pine Breeding Arboretum, were separated by screens into diameter classes. Seedlings from each size class were grown in containers in greenhouses. Differences in seed diameter were associated with differences in germination capacity and germination energy (P < 0. 01). Seed diameter was unrelated to final height and stem diameter of seedlings (p < 0.05). Separate sowing of sized seed could not be justified for production containerized nurseries as similar numbers of quality seedlings were produced by sowing bulk seed. West. J. Appl. For. 2(4):128-130, October 1987.
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Document Type: Journal Article

Affiliations: Department of Forest Resources, Research Nursery, University of Idaho, Moscow

Publication date: 1987-10-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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