condition mean min max 12pM Fe,Midday 48.388 48.388 48.388 12pM Fe,Midnight 28.3067 26.2902 30.3232 58pM Fe,Midday 92.0359 92.0359 92.0359 58pM Fe,Midnight 31.688057142857144 0.0 56.2987 233pM Fe,Midnight 25.217833333333335 24.327 26.4719 1160pM Fe,Midday 22.02317142857143 17.9099 26.5406 1160pM Fe,Midnight 37.84925 33.3589 43.0473 High carbon,Dark 38.83624666666667 23.5126 49.8456 High carbon,Light 42.54659384615385 6.86472 81.4166 Low carbon,Dark 27.3272 27.3272 27.3272 Phloroglucinol 44.276266666666665 39.791 47.5946 Silicon starvation,12h 42.0486 42.0486 42.0486