condition mean min max 12pM Fe,Midday 28.8018 28.8018 28.8018 12pM Fe,Midnight 30.300150000000002 27.2647 33.3356 58pM Fe,Midday 16.9901 16.9901 16.9901 58pM Fe,Midnight 25.066242857142857 0.0 35.4167 233pM Fe,Midnight 25.093700000000002 24.2633 25.9522 1160pM Fe,Midday 19.55262857142857 14.1841 25.8772 1160pM Fe,Midnight 15.084586666666667 6.34905 27.8927 High carbon,Dark 20.168439333333335 2.57899 37.2032 High carbon,Light 15.40973776923077 0.683731 31.8561 Low carbon,Dark 18.6007 18.6007 18.6007 Phloroglucinol 11.0734 10.0383 12.0755 Silicon starvation,12h 31.5141 31.5141 31.5141