TABLE 3.

Evaluated parameters of the electrical signal time series acquired in the experiment 2.

	Treatments
	Wheat		Bean
	Before	After	Before	After
Asymmetry1	−0.5062 ± 11.3357	−0.9695 ± 9.0661	−2.3578 ± 12.6820	0.4750 ± 11.4266
p-value	= −0.875		=0.311
Kurtosis2	172.7551	159.3833	165.8386	53.7678
p-value	=0.659		=0.354
ΔμV3	138.0	697.0**	−148.0	457.0**
p-value	=0.002		=0.009
Average correlation time L4	36.50	127.19**	36.03	196.920**
p-value	≤ 0.001		≤ 0.001
ApEn5	1.6058**	1.1835	1.5678**	0.9040
p-value	≤ 0.001		≤ 0.001
PSD6	−1.2794 ± 0.2958	−1.4142* ± 0.2515	−1.1871 ± 0.2318	−1.2418 ± 0.2632
p-value	=0.001		=0.323
PDF7	−4.7085 ± 1.2900	−4.5678 ± 1.2740	−4.8653 ± 1.2337	−4.5576 ± 0.9237
p-value	=0.764		=0.604

Means followed by * differ significantly according to paired t-test (p ≤ 0.05). Values represent the mean ± SD. The Wilcoxon Signed Rank Test (p ≤ 0.05) was used for data that did not show a normal distribution. Medians followed by ** differ significantly. The values represent the medians. Before: without treatment; After: with treatment.¹(n = 23). ²(n = 23). ³Voltage variation (n = 23). ⁴(n = 23). ⁵Approximate entropy (n = 23). ⁶Exponent β of the Power Spectral Density (n = 23). ⁷Probability density function (n = 11).