Evaluation of Bole Straightness in Cottonwood Using Visual Scores

D.T. Cooper; R.B. Ferguson

doi:10.2737/SO-RN-277

Treesearch

Evaluation of Bole Straightness in Cottonwood Using Visual Scores

Informally Refereed

Authors:

D.T. Cooper, R.B. Ferguson

Year:

1981

Type:

Research Note

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SO-RN-277

Source:

Res. Note SO-277. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 3 p.

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Download (PDF 40 KB): https://research.fs.usda.gov/download/treesearch/1834.pdf

Abstract

Selection for straightness in natural stands of cottonwood can be effective in improving straightness of open-pollinated progeny. Straightness appears to be highly heritable, but it is subject to imprecise evaluation. This can be largely overcome by repeated application of an imprecise scoring system using a minimum of two views per tree separated by 90 degrees.

Keywords

Clone, crook, heritability

Citation

Cooper, D.T.; Ferguson, R.B. 1981. Evaluation of Bole Straightness in Cottonwood Using Visual Scores. Res. Note SO-277. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 3 p.