condition mean min max 12pM Fe,Midday 15.3245 15.3245 15.3245 12pM Fe,Midnight 22.13175 21.3393 22.9242 58pM Fe,Midday 10.7501 10.7501 10.7501 58pM Fe,Midnight 7.685862857142857 0.0 10.5852 233pM Fe,Midnight 13.212833333333334 12.5879 13.8139 1160pM Fe,Midday 6.453777142857143 5.89768 7.24615 1160pM Fe,Midnight 3.9052591666666667 2.25573 6.09041 High carbon,Dark 11.689503333333333 2.38737 28.5188 High carbon,Light 8.16829 1.12208 28.2425 Low carbon,Dark 7.32845 7.32845 7.32845 Phloroglucinol 8.82072 5.21951 12.307 Silicon starvation,12h 6.57211 6.57211 6.57211