condition mean min max 12pM Fe,Midday 70.6724 70.6724 70.6724 12pM Fe,Midnight 62.38615 55.5115 69.2608 58pM Fe,Midday 46.9375 46.9375 46.9375 58pM Fe,Midnight 35.2405 0.0 48.1957 233pM Fe,Midnight 29.8399 28.6566 31.1713 1160pM Fe,Midday 30.455 25.6302 37.3579 1160pM Fe,Midnight 11.461889166666667 3.46023 24.7527 High carbon,Dark 24.748112 1.31778 60.8273 High carbon,Light 11.57610923076923 1.56634 27.7742 Low carbon,Dark 36.7488 36.7488 36.7488 Phloroglucinol 5.404793333333333 2.39661 7.93045 Silicon starvation,12h 17.3141 17.3141 17.3141