condition mean min max 12pM Fe,Midday 40.0611 40.0611 40.0611 12pM Fe,Midnight 27.2073 26.718 27.6966 58pM Fe,Midday 33.9067 33.9067 33.9067 58pM Fe,Midnight 17.658857142857144 0.0 23.8889 233pM Fe,Midnight 22.436333333333334 18.7116 26.193 1160pM Fe,Midday 24.2367 19.5079 29.6936 1160pM Fe,Midnight 15.562383333333333 10.4034 24.8851 High carbon,Dark 25.40316 16.5446 44.8601 High carbon,Light 17.639845384615384 7.17789 32.3583 Low carbon,Dark 21.9351 21.9351 21.9351 Phloroglucinol 19.459466666666668 12.5517 32.3371 Silicon starvation,12h 37.4111 37.4111 37.4111