condition mean min max 12pM Fe,Midday 42.4923 42.4923 42.4923 12pM Fe,Midnight 42.4833 42.0035 42.9631 58pM Fe,Midday 40.3125 40.3125 40.3125 58pM Fe,Midnight 43.9534 34.0972 93.4356 233pM Fe,Midnight 35.3766 34.1724 37.6375 1160pM Fe,Midday 31.555557142857143 29.4192 37.0166 1160pM Fe,Midnight 13.6751225 9.27051 21.9955 High carbon,Dark 24.285021333333333 6.66532 41.404 High carbon,Light 17.33049 7.3242 28.7231 Low carbon,Dark 21.6399 21.6399 21.6399 Phloroglucinol 19.396133333333335 12.7398 27.9353 Silicon starvation,12h 40.4774 40.4774 40.4774