condition mean min max 12pM Fe,Midday 55.7835 55.7835 55.7835 12pM Fe,Midnight 57.071 51.4177 62.7243 58pM Fe,Midday 45.3509 45.3509 45.3509 58pM Fe,Midnight 43.917071428571425 0.0 61.4214 233pM Fe,Midnight 54.500033333333334 51.6695 59.3463 1160pM Fe,Midday 43.938471428571425 40.4577 50.3698 1160pM Fe,Midnight 37.52758333333333 27.7155 54.342 High carbon,Dark 54.005446666666664 33.211 109.725 High carbon,Light 30.354836923076924 1.58888 49.1752 Low carbon,Dark 27.6079 27.6079 27.6079 Phloroglucinol 20.641533333333335 13.4853 31.2531 Silicon starvation,12h 55.2614 55.2614 55.2614