condition mean min max 12pM Fe,Midday 29.5665 29.5665 29.5665 12pM Fe,Midnight 23.5941 23.5285 23.6597 58pM Fe,Midday 32.0299 32.0299 32.0299 58pM Fe,Midnight 17.050428571428572 0.0 21.6414 233pM Fe,Midnight 20.7083 20.1206 21.4114 1160pM Fe,Midday 25.535228571428572 22.0779 27.8532 1160pM Fe,Midnight 13.7103225 9.58317 17.5439 High carbon,Dark 12.6585398 0.875907 24.8719 High carbon,Light 8.280827076923076 0.646038 13.7894 Low carbon,Dark 12.4227 12.4227 12.4227 Phloroglucinol 8.20496 4.04019 14.8097 Silicon starvation,12h 9.1187 9.1187 9.1187