condition mean min max 12pM Fe,Midday 33.3816 33.3816 33.3816 12pM Fe,Midnight 47.6742 43.6472 51.7012 58pM Fe,Midday 37.5672 37.5672 37.5672 58pM Fe,Midnight 46.63427142857143 41.7145 57.6054 233pM Fe,Midnight 49.108866666666664 48.7193 49.7632 1160pM Fe,Midday 18.854257142857143 15.6862 20.7848 1160pM Fe,Midnight 67.12918333333333 56.2332 78.3506 High carbon,Dark 63.96118 31.107 103.405 High carbon,Light 43.73420769230769 10.4566 64.8713 Low carbon,Dark 27.9119 27.9119 27.9119 Phloroglucinol 39.6315 34.8327 43.7649 Silicon starvation,12h 73.7596 73.7596 73.7596