condition mean min max 12pM Fe,Midday 47.9835 47.9835 47.9835 12pM Fe,Midnight 46.7862 36.2916 57.2808 58pM Fe,Midday 34.7384 34.7384 34.7384 58pM Fe,Midnight 26.508 0.0 36.6258 233pM Fe,Midnight 21.471233333333334 19.0162 24.3057 1160pM Fe,Midday 27.929414285714284 22.3338 33.1814 1160pM Fe,Midnight 9.677726666666667 5.06006 14.7293 High carbon,Dark 29.262259333333333 9.13999 55.5028 High carbon,Light 31.537217692307692 3.08166 72.4576 Low carbon,Dark 24.1002 24.1002 24.1002 Phloroglucinol 13.80608 9.84034 17.2372 Silicon starvation,12h 36.7324 36.7324 36.7324