condition mean min max 12pM Fe,Midday 52.7716 52.7716 52.7716 12pM Fe,Midnight 38.57105 35.9818 41.1603 58pM Fe,Midday 28.7572 28.7572 28.7572 58pM Fe,Midnight 24.238085714285713 0.0 32.8346 233pM Fe,Midnight 25.676199999999998 24.0417 27.6543 1160pM Fe,Midday 26.485757142857143 23.6369 31.1631 1160pM Fe,Midnight 18.051416666666668 13.6395 22.9864 High carbon,Dark 22.797293333333332 14.9661 31.3842 High carbon,Light 22.26089307692308 7.57741 35.6482 Low carbon,Dark 18.8236 18.8236 18.8236 Phloroglucinol 14.8278 12.5013 17.5382 Silicon starvation,12h 42.8411 42.8411 42.8411