condition mean min max 12pM Fe,Midday 36.7105 36.7105 36.7105 12pM Fe,Midnight 37.15135 36.0139 38.2888 58pM Fe,Midday 53.2232 53.2232 53.2232 58pM Fe,Midnight 35.22572857142857 32.4148 38.7807 233pM Fe,Midnight 45.266466666666666 42.5917 47.0308 1160pM Fe,Midday 81.04238571428571 70.0185 87.754 1160pM Fe,Midnight 21.234830833333334 9.65078 44.7718 High carbon,Dark 32.42179466666666 5.93712 75.8686 High carbon,Light 25.823947692307694 5.42247 84.0237 Low carbon,Dark 39.6529 39.6529 39.6529 Phloroglucinol 9.92891 7.30783 11.4683 Silicon starvation,12h 56.6328 56.6328 56.6328