Table 5 The in vitro antifungal activity of Solanum nigrum extracts and green-synthesized AgNPs against Pythium tardicrescens, Fusarium circinatum, and Phoma spp.

Treatment	EC 50^a (µg/mL)	95% confidence limits		Slope^b± SE	Intercept^c±SE	(χ²)^d	R²
Treatment	EC 50^a (µg/mL)	Lower	Upper	Slope^b± SE	Intercept^c±SE	(χ²)^d	R²
	Pythium tardicrescens
S. nigrum LAE	2438.66	251.07	23686.56	0.41 ± 0.51	3.63 ± 0.51	0.88	0.97
AgNPs	48.82	32.757	72.743	2.47 ± 0.08	0.80 ± 0.08	0.00	0.805
	Fusarium circinatum
S. nigrum LAE	232.96	90.02	602.89	0.96 ± 0.21	2.72 ± 0.21	0.88	0.98
AgNPs	28.05	4.296	183.160	0.429 ± 0.42	4.37 ± 0.42	0.98	0.97
	Phoma spp.
S. nigrum LAE	1205.26	743.73	1953.21	2.60 ± 0.11	-3.02 ± 0.11	0.15	0.94
AgNPs	115.98	68.308	196.925	2.23 ± 0.12	0.358 ± 0.12	0.021	0.78

EC 50^a: The concentration causing 50% mycelia growth inhibition. ^b: Slope of the concentration-inhibition regression line ± standard error (SE). ^c: Intercept of the regression line ± SE. (χ²)^d: Chi-square value. R²: The coefficient of determination. LAE: Leaf aqueous extract. AgNPs: Silver nanoparticles.

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