Results of two sample T-tests, where the melons height mean values of aquaponics were compared to those of soil system and the differences were statistically evaluated for p < 0.05, after the two sample test for variance was performed by using OriginPro 2016 (OriginLab, Northhampton, MA).

Table 4: Results of two sample T-tests, where the melons height mean values of aquaponics were compared to those of soil system and the differences were statistically evaluated for p < 0.05, after the two sample test for variance was performed by using OriginPro 2016 (OriginLab, Northhampton, MA).

Time	Traditional system mean	Traditional system standard deviation	Aquaponic system mean	Aquaponic system standard deviation	Prob > \|t\|	Two sample test for variance	Prob > F
Day 0	5.81	1.22	5.4	1.92	0.48	Equal variances	0.09
Day 4	7	1.1	5.67	2.06	0.04	Different variances	0.02
Day 7	8.75	1.69	5.4	1.92	1.62E-05	Equal variances	0.63
Day 11	13.69	2.82	6.6	2.1	1.05E-08	Equal variances	0.27
Day 18	42.31	5.2	9.87	3.04	4.27E-19	Equal variances	0.05
Day 25	94.81	16.03	16.6	5.14	2.81E-13	Different variances	1.15E-04
Day 32	157.56	20	26.8	8.55	1.68E-16	Different variances	2.81E-13
Day 39	205	11.55	38.13	11.87	8.01E-27	Equal variances	0.91
Day 46	221.25	13.1	51.4	15.26	1.14E-24	Equal variances	0.56

Prob > |t| and Prob > F indicate if the p-value was less than 0.05 in the two sample t-tests and two sample tests for variance, respectively.