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Publication Information

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Title: Estimating potential Engelmann spruce seed production on the Fraser Experimental Forest, Colorado

Author: Alexander, Robert R.; Edminster, Carleton B.; Watkins, Ross K.;

Date: 1986

Source: Res. Pap. RM-RP-269. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 7 p.

Publication Series: Research Paper (RP)

Description:

Two good, three heavy, and two bumper spruce seed crops were produced during a 15-year period. There was considerable variability in seed crops, however. Not all locations produced good to bumper seed crops when overall yearly ratings averaged good or better; conversely, some locations produced bumper seed crops in 3 or more years. Mathematical relationships, that should be useful in estimating potential sound seed production, were estimated between periodic annual15-year sound seed production and (1) periodic annual15-year total seed production and (2) selected stand parameters of dominant and co-dominant spruces.

Keywords: Picea engelmannii, seed production, natural regeneration

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
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Citation:


Alexander, Robert R.; Edminster, Carleton B.; Watkins, Ross K. 1986. Estimating potential Engelmann spruce seed production on the Fraser Experimental Forest, Colorado. Res. Pap. RM-RP-269. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 7 p.

 


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