condition mean min max 12pM Fe,Midday 53.1661 53.1661 53.1661 12pM Fe,Midnight 46.23835 45.5023 46.9744 58pM Fe,Midday 29.937 29.937 29.937 58pM Fe,Midnight 27.616814285714284 0.0 35.6948 233pM Fe,Midnight 23.128933333333332 20.1196 25.7712 1160pM Fe,Midday 25.37402857142857 22.2899 30.7697 1160pM Fe,Midnight 18.768608333333333 13.9966 26.5627 High carbon,Dark 20.771389333333335 9.67634 34.4596 High carbon,Light 23.756152307692307 7.23627 51.5525 Low carbon,Dark 12.8143 12.8143 12.8143 Phloroglucinol 71.89853333333333 65.9387 80.4165 Silicon starvation,12h 54.1313 54.1313 54.1313