condition mean min max 12pM Fe,Midday 143.262 143.262 143.262 12pM Fe,Midnight 127.0135 125.544 128.483 58pM Fe,Midday 110.419 110.419 110.419 58pM Fe,Midnight 100.18701428571428 83.4183 160.727 233pM Fe,Midnight 64.5379 63.1422 65.5265 1160pM Fe,Midday 81.9874 73.9422 88.758 1160pM Fe,Midnight 49.76730833333333 43.5683 54.4207 High carbon,Dark 66.27734666666666 37.0921 103.298 High carbon,Light 47.80152846153846 1.92486 89.9612 Low carbon,Dark 40.1986 40.1986 40.1986 Phloroglucinol 120.67783333333334 86.6955 158.508 Silicon starvation,12h 43.1445 43.1445 43.1445