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. 2014 Nov 11;5:31–39. doi: 10.1016/j.btre.2014.11.001

Table 3.

Test of significance of variables.

Term	T	P
Nitrogen source	8.94	0.000^*
Tween-80	2.61	0.015^*
CuSO₄	1.63	0.115
Methionine	1.99	0.057
Resorcinol	1.26	0.218
Tannic acid	−2.59	0.016^*

^*

Significant.