TABLE 2.

Analysis of variance and coefficient of regression.

Source of variation	Sum of squares	Degrees of freedom	Mean square	Repport	Signif. (%)
Regression	8.06110E+0003	6	1.34352E+0003	44.4248	<0.01***
Residus	1.64006E+003	22	7.45480E+0001	​	​
Validity	1.06545E+0003	3	3.55149E+0002	11.7434	0.0141***
Error	5.74608E+0002	19	3.02425E+0001	​	​
Total	9.70115E+0003	28	​	​	​
R2	0,83	​	​	​	​

*** indicates statistical significance at p < 0.001.