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Provisional tree and shrub seed zones for the Great Plains

Author(s):

Richard A. Cunningham

Year:

1975

Publication type:

Research Paper (RP)

Primary Station(s):

Rocky Mountain Research Station

Historical Station(s):

Rocky Mountain Forest and Range Experiment Station

Source:

Res. Pap. RM-150. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 15 p

Description

Seed collection zones are subdivisions of land areas established to identify seed sources and to control the movement of seed and planting stock. Seed zones are needed for many species because of the genetic variation associated with their geographic distribution. Zone boundaries may be delineated from experimental data that identify genetic variation, or by analysis of the environmental factors that most likely acted as selective forces in creating such genotypic variation.

Citation

Cunningham, Richard A. 1975. Provisional tree and shrub seed zones for the Great Plains. Res. Pap. RM-150. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 15 p

Publication Notes

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
https://www.fs.usda.gov/treesearch/pubs/24593