FOREST BIOMETRICS

DR A.C. ADETOGUN DR.O.A JAYEOLA MR. A. O. OLADOYE
DEPARTMENT OF FORESTRY & WILDLIFE MANAGEMENT, UNIVERSITY OF AGRICULTURE, ABEOKUTA, NIGERIA
July, 2011
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Abstract

DESIGN AND ANALYSIS OF EXPERIMENT
Expel design and sample design.
Sample design is a method of choosing the required number of sample in a given population. Exptal design is where identical or difficult subject.
An experimental unit is a unit of difference subject of the treatment is applied and he treatment is the factor whose effect is to be investigated or measured and compared the other treatment.
Experimental error is one of the most important in an experiment it is a variation among unit of experiment alike it is a measure of variation each exist among observation of experiment issue treated alike.
There are 2 main source of variation
1. Inherent variation that exist in the experimental material to each treatment are applied
2. Variation which result from lack of uniformity in the physical conduct of experiment e.g. unequal instrument unit. Like experimental error based on this sources of variation can thus be reduced by
1. Handling the experimental materials so that the effects of inherent error may be reduced.
2. Refusing experimental techniques