condition mean min max 12pM Fe,Midday 60.3595 60.3595 60.3595 12pM Fe,Midnight 25.49805 24.5818 26.4143 58pM Fe,Midday 41.0837 41.0837 41.0837 58pM Fe,Midnight 15.124871428571428 0.0 20.3454 233pM Fe,Midnight 18.4589 16.3029 20.1474 1160pM Fe,Midday 37.932185714285716 33.9229 42.4803 1160pM Fe,Midnight 13.53738 9.52186 18.488 High carbon,Dark 32.347413333333336 14.7178 55.3337 High carbon,Light 32.806030769230766 11.4353 60.706 Low carbon,Dark 23.3202 23.3202 23.3202 Phloroglucinol 22.004866666666665 16.1342 29.3325 Silicon starvation,12h 31.9411 31.9411 31.9411