Ratio-and-Regression-Estimators-of-Hardwood-Growth-for-Comparing-Efficacy-of-Herbicide-Treatments
Date Published: 1988
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- Know, Stephen A.
School of Forest Resources, University of Georgia, Athens, GA - Shiver, Barry D.
School of Forest Resources, University of Georgia, Athens, GA
An objective procedure for comparing effectiveness of herbicide treatments is presented. Growth of hardwood rootstocks between treatment and evaluation can be obtained using ratio or regression estimators' Computational formulas and conditions for valid application of the estimators are discussed. Examples of both estimation procedures and their effect on statistical significance of orthogonal contrasts are demonstrated for dogwood and sweetgum in a site preparation study.
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