condition mean min max 12pM Fe,Midday 29.9082 29.9082 29.9082 12pM Fe,Midnight 26.162300000000002 21.0405 31.2841 58pM Fe,Midday 18.6806 18.6806 18.6806 58pM Fe,Midnight 11.79854142857143 0.0 16.413 233pM Fe,Midnight 14.964266666666667 13.9245 16.1771 1160pM Fe,Midday 16.432142857142857 12.1702 22.1372 1160pM Fe,Midnight 8.354518333333333 2.7398 14.9903 High carbon,Dark 13.970222666666666 3.14718 23.7417 High carbon,Light 11.924206923076923 2.33701 35.4608 Low carbon,Dark 14.7705 14.7705 14.7705 Phloroglucinol 28.6032 24.9884 34.8511 Silicon starvation,12h 26.0258 26.0258 26.0258