condition mean min max 12pM Fe,Midday 35.3129 35.3129 35.3129 12pM Fe,Midnight 27.506149999999998 27.3188 27.6935 58pM Fe,Midday 39.9546 39.9546 39.9546 58pM Fe,Midnight 25.379042857142856 0.0 34.3967 233pM Fe,Midnight 36.2989 33.7224 37.6801 1160pM Fe,Midday 58.16021428571429 52.4799 66.4648 1160pM Fe,Midnight 18.0966025 9.12823 33.9539 High carbon,Dark 18.147001333333332 2.02162 34.3079 High carbon,Light 34.35550769230769 4.13406 65.7781 Low carbon,Dark 50.7973 50.7973 50.7973 Phloroglucinol 16.518033333333335 14.1986 19.0316 Silicon starvation,12h 67.1927 67.1927 67.1927