condition mean min max 12pM Fe,Midday 19.5704 19.5704 19.5704 12pM Fe,Midnight 16.7847 16.289 17.2804 58pM Fe,Midday 17.9703 17.9703 17.9703 58pM Fe,Midnight 12.829885714285714 0.0 19.4066 233pM Fe,Midnight 12.611866666666668 10.5212 16.3272 1160pM Fe,Midday 12.91607142857143 10.6856 16.2469 1160pM Fe,Midnight 7.1773983333333335 3.49198 13.6729 High carbon,Dark 12.547964 5.15799 22.6759 High carbon,Light 9.296661538461539 2.10954 17.137 Low carbon,Dark 7.80031 7.80031 7.80031 Phloroglucinol 11.82348 7.23694 17.3585 Silicon starvation,12h 29.2031 29.2031 29.2031