condition mean min max 12pM Fe,Midday 19.5188 19.5188 19.5188 12pM Fe,Midnight 22.8387 22.2717 23.4057 58pM Fe,Midday 16.2137 16.2137 16.2137 58pM Fe,Midnight 15.787257142857143 0.0 21.269 233pM Fe,Midnight 13.9429 13.2417 14.3884 1160pM Fe,Midday 16.80707142857143 14.5519 18.7642 1160pM Fe,Midnight 27.4968675 8.8363 44.1233 High carbon,Dark 19.624014 4.52101 50.872 High carbon,Light 22.872706153846153 1.87608 65.9494 Low carbon,Dark 15.535 15.535 15.535 Phloroglucinol 11.393226666666667 7.98758 15.7407 Silicon starvation,12h 53.7148 53.7148 53.7148