condition mean min max 12pM Fe,Midday 20.5672 20.5672 20.5672 12pM Fe,Midnight 23.4878 21.2071 25.7685 58pM Fe,Midday 16.2628 16.2628 16.2628 58pM Fe,Midnight 18.78107142857143 15.1429 31.1122 233pM Fe,Midnight 14.154633333333333 13.8346 14.4983 1160pM Fe,Midday 14.388285714285715 13.3131 15.7751 1160pM Fe,Midnight 4.8273575 3.69823 6.44948 High carbon,Dark 12.819221333333333 2.33766 31.7749 High carbon,Light 9.052976769230769 0.592768 16.0437 Low carbon,Dark 8.95966 8.95966 8.95966 Phloroglucinol 24.1506 21.8272 26.0572 Silicon starvation,12h 19.2711 19.2711 19.2711