condition mean min max 12pM Fe,Midday 52.7689 52.7689 52.7689 12pM Fe,Midnight 49.5362 48.881 50.1914 58pM Fe,Midday 47.4654 47.4654 47.4654 58pM Fe,Midnight 29.923957142857144 21.6998 62.1147 233pM Fe,Midnight 14.1914 12.7232 15.9224 1160pM Fe,Midday 26.556657142857144 24.3223 30.3553 1160pM Fe,Midnight 17.887341666666668 12.6134 22.6028 High carbon,Dark 20.478807333333332 7.32231 37.9405 High carbon,Light 15.864673846153845 4.73187 32.033 Low carbon,Dark 10.7894 10.7894 10.7894 Phloroglucinol 17.264066666666665 13.7959 19.6634 Silicon starvation,12h 25.3513 25.3513 25.3513