condition mean min max 12pM Fe,Midday 37.4013 37.4013 37.4013 12pM Fe,Midnight 38.724199999999996 35.3917 42.0567 58pM Fe,Midday 38.8586 38.8586 38.8586 58pM Fe,Midnight 40.2366 28.6275 79.8537 233pM Fe,Midnight 35.927733333333336 35.3447 36.5123 1160pM Fe,Midday 30.071514285714287 27.1352 32.8543 1160pM Fe,Midnight 36.434466666666665 28.5358 44.852 High carbon,Dark 33.01799333333334 14.0631 51.1488 High carbon,Light 28.73945923076923 5.32497 55.0986 Low carbon,Dark 24.6388 24.6388 24.6388 Phloroglucinol 21.356433333333335 13.1366 29.5371 Silicon starvation,12h 24.7949 24.7949 24.7949