condition mean min max 12pM Fe,Midday 43.0725 43.0725 43.0725 12pM Fe,Midnight 41.19305 39.4611 42.925 58pM Fe,Midday 43.9202 43.9202 43.9202 58pM Fe,Midnight 48.62621428571428 28.0518 145.826 233pM Fe,Midnight 32.296033333333334 29.8791 35.7141 1160pM Fe,Midday 29.766057142857143 27.5811 32.1356 1160pM Fe,Midnight 23.475266666666666 21.8407 25.8742 High carbon,Dark 64.79489333333333 28.8184 192.318 High carbon,Light 60.683253846153846 26.7635 136.344 Low carbon,Dark 31.6627 31.6627 31.6627 Phloroglucinol 71.12896666666667 58.0935 83.8437 Silicon starvation,12h 76.6716 76.6716 76.6716