Pearson’s correlation coefficient was >0.5 between box dimension and crown projection area and crown volume with moderate no thinning (Table 4). However, the correlation was significant (p<0.001) between box dimension and all crow attributes with all thinning treatments. However, the correlation between box dimension and stem attributes, benefit-to-cost ratio, growth, as well as light availability was mostly <0.5 indicating a weak relationship between them. Nevertheless, the Person’s correlation coefficients were found significant for stem attributes in moderate thinning and for growth attributes in control plots.
Table 4. Pearson’s correlation coefficients between box dimension and stem and crown attributes, benefit-to-cost ratio, growth attributes, and light availability grouped by thinning treatment. Correlation coefficients >0.50 are bolded and * denotes statistical significance (p<0.001).