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Would you like to add information to this article? Interested in writing or submitting an article? Have a question about this article? Selecting superior yellow birch trees; a preliminary guide. (Download the latest Acrobat Reader if required.) Selecting superior yellow birch trees; a preliminary guide. (1967) Describes procedures to follow and characteristics to consider in selecting superior yellow birch trees. The first selection should be on the basis of tree quality. Characteristics to consider are as follows: for the stem--straightness, roundness, taper grain, self-pruning, and absence of defects; for the crown--apical dominance, branch angle, and branch diameter; for growth--tree height, stem diameter and volume, length, diameter, and density of the crown, and growth rate. Author: Clausen, Knud E.; Godman, Richard M. Source: Research Paper NC-20. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station Citation: Clausen, Knud E.; Godman, Richard M. 1967. Selecting superior yellow birch trees; a preliminary guide. Research Paper NC-20. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. Have you reviewed the related Knowledge Base areas below? 
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