condition mean min max 12pM Fe,Midday 27.3349 27.3349 27.3349 12pM Fe,Midnight 22.726399999999998 22.2984 23.1544 58pM Fe,Midday 22.1901 22.1901 22.1901 58pM Fe,Midnight 14.1055 0.0 18.4241 233pM Fe,Midnight 19.61883333333333 18.4988 20.4592 1160pM Fe,Midday 19.382828571428572 18.174 20.7347 1160pM Fe,Midnight 11.7556925 9.57271 15.4114 High carbon,Dark 18.091926666666666 10.8516 26.4266 High carbon,Light 15.336144615384615 6.62418 24.6646 Low carbon,Dark 12.0214 12.0214 12.0214 Phloroglucinol 24.799466666666667 18.9464 28.286 Silicon starvation,12h 27.3956 27.3956 27.3956