Synthesis and Antifungal Activities of Cinnamaldehyde Derivatives against Penicillium digitatum Causing Citrus Green Mold

Table 3

Effect of different 4-methoxy CA concentrations on germination of spores of P. digitatum after incubation at 27 ± 1°C for 12 h.

Concentrations (μg/mL)	Spore germination	SGI	Toxic regression equation	Effective concentration (EC, μg/mL)
0	90.48 ± 0.46a	0f	y = 2.247 + 1.501x; R^2 = 0.92	EC50 = 39 (22–43); EC95 = 391 (210–1415)
15.6	65.60 ± 0.74b	27.50 ± 0.65e
31.3	56.15 ± 0.82c	37.94 ± 0.75d
62.5	30.00 ± 0.69d	66.84 ± 0.47c
125	19.82 ± 1.10e	78.09 ± 0.42b
250	6.45 ± 0.35f	92.87 ± 0.02a