condition mean min max 12pM Fe,Midday 128.53 128.53 128.53 12pM Fe,Midnight 67.33535 66.9943 67.6764 58pM Fe,Midday 88.5173 88.5173 88.5173 58pM Fe,Midnight 64.77521428571428 46.2299 110.098 233pM Fe,Midnight 34.071533333333335 32.357 35.8755 1160pM Fe,Midday 73.30671428571428 70.6501 76.3119 1160pM Fe,Midnight 50.670775 36.2852 68.2659 High carbon,Dark 44.42102666666667 20.1258 80.9121 High carbon,Light 40.85400615384615 5.10528 79.608 Low carbon,Dark 36.7387 36.7387 36.7387 Phloroglucinol 44.19446666666667 28.5288 55.4948 Silicon starvation,12h 34.7146 34.7146 34.7146