condition mean min max 12pM Fe,Midday 18.4803 18.4803 18.4803 12pM Fe,Midnight 15.7789 13.3826 18.1752 58pM Fe,Midday 18.424 18.424 18.424 58pM Fe,Midnight 12.2281 0.0 15.3819 233pM Fe,Midnight 11.132166666666667 10.6424 11.9742 1160pM Fe,Midday 13.666671428571428 12.6263 14.8975 1160pM Fe,Midnight 8.531823333333334 7.05893 10.2493 High carbon,Dark 8.745637333333333 4.23916 14.154 High carbon,Light 8.114179 0.226544 13.3295 Low carbon,Dark 6.92994 6.92994 6.92994 Phloroglucinol 12.4045 10.9963 14.5846 Silicon starvation,12h 12.2751 12.2751 12.2751