condition mean min max 12pM Fe,Midday 88.323 88.323 88.323 12pM Fe,Midnight 69.38195 69.1494 69.6145 58pM Fe,Midday 65.8125 65.8125 65.8125 58pM Fe,Midnight 61.83378571428572 34.2655 165.251 233pM Fe,Midnight 25.288366666666665 22.7649 28.0814 1160pM Fe,Midday 33.025914285714286 28.3029 38.213 1160pM Fe,Midnight 25.346458333333334 14.3672 38.8676 High carbon,Dark 33.942573333333335 12.163 52.4558 High carbon,Light 37.41743769230769 5.97539 78.7315 Low carbon,Dark 17.3737 17.3737 17.3737 Phloroglucinol 55.96296666666667 30.877 83.1715 Silicon starvation,12h 43.6408 43.6408 43.6408