condition mean min max 12pM Fe,Midday 38.9582 38.9582 38.9582 12pM Fe,Midnight 39.671549999999996 37.9249 41.4182 58pM Fe,Midday 25.2487 25.2487 25.2487 58pM Fe,Midnight 29.551742857142855 23.7678 44.1055 233pM Fe,Midnight 10.060516666666667 9.89023 10.3698 1160pM Fe,Midday 15.661042857142856 13.7987 17.2694 1160pM Fe,Midnight 6.057425 2.69319 12.2333 High carbon,Dark 9.297354666666667 1.17986 20.1287 High carbon,Light 6.458583076923077 2.62952 14.5858 Low carbon,Dark 10.4837 10.4837 10.4837 Phloroglucinol 37.08213333333333 32.5439 40.8944 Silicon starvation,12h 19.4129 19.4129 19.4129