Research Concerning the Number and Surface of the Knots Detected on Black Poplar (Populus nigra L.)

Authors

  • E.C. David Transilvania University of Brasov, Romania
  • A. Ciubotaru Transilvania University of Brasov, Romania

Keywords:

number of knots, the total area of knots, regression coefficient

Abstract

The article presents the correlations between the numbers of knots, respectively the total area of knots detected on a tree, reported at the base diameter. After applying the statistic analysis, the results showed coefficients of correlation of 0.69 and 0.83. The regression was verified with Fisher test. The significance of the regression coefficient was tested using Student t test.

Author Biographies

E.C. David, Transilvania University of Brasov, Romania

Dept. of Forest Exploatation

A. Ciubotaru, Transilvania University of Brasov, Romania

Dept. of Forest Exploatation

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Published

2011-11-29

Issue

Vol. 4(53) No. 2 (2011)

Section

FORESTRY