condition mean min max 12pM Fe,Midday 29.9907 29.9907 29.9907 12pM Fe,Midnight 30.149749999999997 29.1104 31.1891 58pM Fe,Midday 34.4983 34.4983 34.4983 58pM Fe,Midnight 24.24927142857143 0.0 32.9061 233pM Fe,Midnight 23.159 20.8884 25.0265 1160pM Fe,Midday 23.24617142857143 18.728 29.1818 1160pM Fe,Midnight 35.971241666666664 20.7672 58.6007 High carbon,Dark 14.942028666666667 8.00548 20.7652 High carbon,Light 8.104244615384616 0.0 19.3064 Low carbon,Dark 7.87238 7.87238 7.87238 Phloroglucinol 10.94726 6.70917 17.6035 Silicon starvation,12h 23.1017 23.1017 23.1017