condition mean min max 12pM Fe,Midday 39.7187 39.7187 39.7187 12pM Fe,Midnight 35.4081 35.4051 35.4111 58pM Fe,Midday 23.0116 23.0116 23.0116 58pM Fe,Midnight 26.836671428571428 0.0 33.8196 233pM Fe,Midnight 17.128033333333335 14.6703 20.5179 1160pM Fe,Midday 19.365314285714287 16.5057 23.6122 1160pM Fe,Midnight 11.720483333333334 8.69853 16.7111 High carbon,Dark 16.060527333333333 4.49654 30.3809 High carbon,Light 11.899520769230769 2.56202 32.1243 Low carbon,Dark 15.367 15.367 15.367 Phloroglucinol 12.020066666666667 5.9259 15.7852 Silicon starvation,12h 16.949 16.949 16.949