condition mean min max 12pM Fe,Midday 37.0086 37.0086 37.0086 12pM Fe,Midnight 32.4002 31.5316 33.2688 58pM Fe,Midday 24.9765 24.9765 24.9765 58pM Fe,Midnight 19.3808 0.0 28.0591 233pM Fe,Midnight 17.919466666666665 17.1089 19.4613 1160pM Fe,Midday 19.4352 15.5589 23.3033 1160pM Fe,Midnight 11.1952475 7.54974 15.8501 High carbon,Dark 20.016770666666666 8.94755 29.9282 High carbon,Light 17.269083846153848 3.69279 31.9285 Low carbon,Dark 14.2699 14.2699 14.2699 Phloroglucinol 32.3609 27.3632 41.0261 Silicon starvation,12h 56.7461 56.7461 56.7461