condition mean min max 12pM Fe,Midday 31.52 31.52 31.52 12pM Fe,Midnight 28.579900000000002 27.3978 29.762 58pM Fe,Midday 22.6176 22.6176 22.6176 58pM Fe,Midnight 18.088171428571428 0.0 23.0722 233pM Fe,Midnight 17.02713333333333 15.9424 18.4578 1160pM Fe,Midday 17.237442857142856 16.0402 19.9673 1160pM Fe,Midnight 37.263620833333334 8.36158 62.6586 High carbon,Dark 34.407853333333335 15.0598 52.3008 High carbon,Light 35.35991923076923 5.35454 68.1728 Low carbon,Dark 24.4627 24.4627 24.4627 Phloroglucinol 73.44173333333333 67.7046 79.1155 Silicon starvation,12h 60.8504 60.8504 60.8504