condition mean min max 12pM Fe,Midday 44.9509 44.9509 44.9509 12pM Fe,Midnight 41.043 41.042 41.044 58pM Fe,Midday 30.4674 30.4674 30.4674 58pM Fe,Midnight 21.58835714285714 0.0 29.973 233pM Fe,Midnight 18.063466666666667 17.8602 18.3295 1160pM Fe,Midday 27.161214285714287 24.9355 29.5515 1160pM Fe,Midnight 9.953873333333334 8.04464 12.5956 High carbon,Dark 17.52385333333333 5.12958 30.4702 High carbon,Light 9.698727692307692 2.22291 17.0631 Low carbon,Dark 17.9687 17.9687 17.9687 Phloroglucinol 10.605123333333333 7.09818 15.68 Silicon starvation,12h 26.036 26.036 26.036