condition mean min max 12pM Fe,Midday 35.7548 35.7548 35.7548 12pM Fe,Midnight 40.36875 36.893 43.8445 58pM Fe,Midday 33.3676 33.3676 33.3676 58pM Fe,Midnight 27.46917142857143 0.0 34.6904 233pM Fe,Midnight 37.239333333333335 34.4893 39.6532 1160pM Fe,Midday 31.890842857142857 30.613 32.5649 1160pM Fe,Midnight 31.278491666666667 23.2943 35.9176 High carbon,Dark 25.688829333333334 8.77934 51.5125 High carbon,Light 23.453126153846153 3.94674 42.0002 Low carbon,Dark 29.504 29.504 29.504 Phloroglucinol 47.9033 37.6332 53.0966 Silicon starvation,12h 54.3549 54.3549 54.3549