condition mean min max 12pM Fe,Midday 36.9445 36.9445 36.9445 12pM Fe,Midnight 39.193650000000005 38.8385 39.5488 58pM Fe,Midday 31.9796 31.9796 31.9796 58pM Fe,Midnight 25.536514285714286 0.0 37.4464 233pM Fe,Midnight 41.594233333333335 41.3228 42.0145 1160pM Fe,Midday 27.05977142857143 24.7756 35.4515 1160pM Fe,Midnight 24.288475000000002 12.2682 44.161 High carbon,Dark 40.75647333333333 25.9438 58.9055 High carbon,Light 33.04965 4.3517 73.5458 Low carbon,Dark 30.6693 30.6693 30.6693 Phloroglucinol 54.73206666666667 47.0557 64.841 Silicon starvation,12h 46.3817 46.3817 46.3817