condition mean min max 12pM Fe,Midday 57.5052 57.5052 57.5052 12pM Fe,Midnight 46.03675 42.6067 49.4668 58pM Fe,Midday 41.1463 41.1463 41.1463 58pM Fe,Midnight 30.819 0.0 37.8074 233pM Fe,Midnight 24.283733333333334 22.6646 27.1959 1160pM Fe,Midday 38.95917142857143 36.565 40.9063 1160pM Fe,Midnight 18.861416666666667 14.6483 21.0868 High carbon,Dark 29.365073333333335 11.2391 45.0628 High carbon,Light 27.564405384615384 4.59747 52.2124 Low carbon,Dark 28.2639 28.2639 28.2639 Phloroglucinol 55.49053333333333 48.9234 59.493 Silicon starvation,12h 33.7285 33.7285 33.7285