condition mean min max 12pM Fe,Midday 19.3449 19.3449 19.3449 12pM Fe,Midnight 17.1055 16.8291 17.3819 58pM Fe,Midday 18.6236 18.6236 18.6236 58pM Fe,Midnight 13.344928571428571 0.0 19.2574 233pM Fe,Midnight 12.412566666666667 11.6608 12.9512 1160pM Fe,Midday 14.097328571428571 10.5841 16.0947 1160pM Fe,Midnight 8.7304175 6.38633 13.0145 High carbon,Dark 11.415094 6.74306 17.5199 High carbon,Light 11.313448461538462 1.25781 19.4754 Low carbon,Dark 7.04138 7.04138 7.04138 Phloroglucinol 9.473446666666668 7.04461 11.3872 Silicon starvation,12h 16.554 16.554 16.554