condition mean min max 12pM Fe,Midday 39.4537 39.4537 39.4537 12pM Fe,Midnight 17.11055 16.4121 17.809 58pM Fe,Midday 28.2077 28.2077 28.2077 58pM Fe,Midnight 10.226338571428572 0.0 15.7044 233pM Fe,Midnight 14.603533333333333 13.9561 15.0656 1160pM Fe,Midday 21.061285714285713 19.0506 24.8206 1160pM Fe,Midnight 6.819300833333333 1.58877 18.2751 High carbon,Dark 15.238071999999999 4.50227 24.3357 High carbon,Light 13.021866153846155 3.09934 23.1538 Low carbon,Dark 17.951 17.951 17.951 Phloroglucinol 7.273336666666666 6.5268 7.98189 Silicon starvation,12h 20.6521 20.6521 20.6521