condition mean min max 12pM Fe,Midday 27.8512 27.8512 27.8512 12pM Fe,Midnight 17.678449999999998 16.7771 18.5798 58pM Fe,Midday 23.5667 23.5667 23.5667 58pM Fe,Midnight 9.426444285714286 0.0 12.939 233pM Fe,Midnight 11.267 9.5287 12.2267 1160pM Fe,Midday 14.827228571428572 12.9786 17.1457 1160pM Fe,Midnight 6.684159166666666 2.62536 10.9635 High carbon,Dark 10.258418333333333 0.723645 16.7049 High carbon,Light 7.2091653846153845 1.44311 17.1696 Low carbon,Dark 10.6342 10.6342 10.6342 Phloroglucinol 11.234956666666667 9.1553 15.0102 Silicon starvation,12h 20.7823 20.7823 20.7823