condition mean min max 12pM Fe,Midday 11.3479 11.3479 11.3479 12pM Fe,Midnight 13.77455 13.3155 14.2336 58pM Fe,Midday 12.0115 12.0115 12.0115 58pM Fe,Midnight 10.261785714285715 0.0 13.0835 233pM Fe,Midnight 8.007053333333333 7.54714 8.35115 1160pM Fe,Midday 8.587218571428572 7.33106 9.64856 1160pM Fe,Midnight 6.9065075 5.964 8.55655 High carbon,Dark 7.247465333333333 3.06414 13.1379 High carbon,Light 4.891702461538461 0.290032 14.164 Low carbon,Dark 6.19302 6.19302 6.19302 Phloroglucinol 5.626246666666667 4.9642 6.79773 Silicon starvation,12h 4.8729 4.8729 4.8729