condition mean min max 12pM Fe,Midday 36.3274 36.3274 36.3274 12pM Fe,Midnight 50.4266 49.273 51.5802 58pM Fe,Midday 32.4648 32.4648 32.4648 58pM Fe,Midnight 46.77952857142857 34.866 96.6128 233pM Fe,Midnight 21.5354 20.1045 23.2886 1160pM Fe,Midday 22.5181 18.0457 26.1076 1160pM Fe,Midnight 14.9797425 9.35567 22.2039 High carbon,Dark 42.04884666666667 7.32271 93.0991 High carbon,Light 23.034682307692307 1.49332 49.4595 Low carbon,Dark 50.4926 50.4926 50.4926 Phloroglucinol 1.6119966666666667 1.30565 2.09849 Silicon starvation,12h 9.32947 9.32947 9.32947