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Problems in Woody Plant Control Evaluation in the Tropics

Published online by Cambridge University Press:  12 June 2017

Fred H. Tschirley
Fred H. Tschirley*
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Federal Experiment Station, Mayaguez, Puerto Rico
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Abstract

Wet tropical forests have a high diversity of woody species which cause problems in sampling and analysis of data regarding herbicidal effectiveness. Three simplified sampling procedures were tested to determine their reliability in providing an estimate of whole-plot defoliation from broadcast applications. A procedure using a 50-tree sample including all species will provide the most reliable data.

Type
Research Article
Information
Weeds , Volume 15 , Issue 3 , July 1967 , pp. 233 - 237
Copyright
Copyright © 1967 Weed Science Society of America 

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References

Literature Cited

1. Beard, J. S. 1949. The natural vegetation of the Windward and Leeward Islands. Oxford Forest. Mem. 21. 192 pp.Google Scholar
2. Li, Jerome C. R. 1957. Introduction to Statistical Inference. Edward Brothers, Inc., Ann Arbor, Michigan. 553 pp.Google Scholar
3. Richards, P. W. 1964. The Tropical Rain Forest. An ecological study. Cambridge Univ. Press, London. 450 pp.Google Scholar