condition mean min max 12pM Fe,Midday 67.2822 67.2822 67.2822 12pM Fe,Midnight 68.8586 66.6389 71.0783 58pM Fe,Midday 53.2738 53.2738 53.2738 58pM Fe,Midnight 68.37995714285714 49.9126 142.368 233pM Fe,Midnight 50.175466666666665 46.1413 52.8294 1160pM Fe,Midday 36.125457142857144 32.4089 39.6643 1160pM Fe,Midnight 33.812558333333335 29.7909 37.6669 High carbon,Dark 48.23248666666667 22.4278 73.9754 High carbon,Light 32.94795076923077 8.33066 46.6899 Low carbon,Dark 43.3853 43.3853 43.3853 Phloroglucinol 40.6423 32.156 57.4811 Silicon starvation,12h 37.9017 37.9017 37.9017