condition mean min max 12pM Fe,Midday 56.4607 56.4607 56.4607 12pM Fe,Midnight 46.71325 46.2535 47.173 58pM Fe,Midday 38.3181 38.3181 38.3181 58pM Fe,Midnight 31.58482857142857 0.0 41.8703 233pM Fe,Midnight 24.484666666666666 23.4465 25.6843 1160pM Fe,Midday 42.687400000000004 37.7964 48.1554 1160pM Fe,Midnight 13.559089166666666 8.27779 21.0789 High carbon,Dark 23.29863466666667 9.77402 40.0632 High carbon,Light 20.496075384615384 3.87252 48.3316 Low carbon,Dark 19.151 19.151 19.151 Phloroglucinol 26.044633333333334 22.5846 30.2505 Silicon starvation,12h 38.674 38.674 38.674