condition mean min max 12pM Fe,Midday 20.5242 20.5242 20.5242 12pM Fe,Midnight 38.277249999999995 36.1507 40.4038 58pM Fe,Midday 14.8885 14.8885 14.8885 58pM Fe,Midnight 32.071157142857146 0.0 43.5562 233pM Fe,Midnight 38.422399999999996 37.137 39.6121 1160pM Fe,Midday 11.7508 10.1477 15.349 1160pM Fe,Midnight 29.378491666666665 26.9064 34.0226 High carbon,Dark 37.53846 16.7885 85.9076 High carbon,Light 24.931184615384616 10.0146 50.6501 Low carbon,Dark 35.4542 35.4542 35.4542 Phloroglucinol 23.83363333333333 18.7038 29.8559 Silicon starvation,12h 37.5577 37.5577 37.5577