Table 1: Results of two sample T-tests, where the peppers 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 21.81 2.66 22.7 2.27 0.38 Equal variances 0.6
Day 4 22.67 2.58 23.9 2.43 0.21 Equal variances 0.85
Day 7 25.25 2.67 24.8 2.56 0.62 Equal variances 0.91
Day 11 27.88 2.94 26.3 2.96 0.18 Equal variances 0.95
Day 18 35 3.81 29.3 3.17 2.51E-04 Equal variances 0.54
Day 25 43.13 5.62 32.8 3.65 7.65E-06 Equal variances 0.15
Day 32 54.75 7.07 36.4 4.17 1.83E-08 Equal variances 0.08
Day 39 62.81 8.15 38.2 3.71 3.21E-10 Different variances 0.01
Day 46 70.44 8.99 41.5 4.93 1.92E-10 Equal variances 0.05

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.