condition mean min max 12pM Fe,Midday 0.188705 0.188705 0.188705 12pM Fe,Midnight 0.29171250000000004 0.196245 0.38718 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.2013987142857143 0.0 0.637074 233pM Fe,Midnight 0.07834633333333334 0.0 0.235039 1160pM Fe,Midday 0.29251714285714286 0.0 1.1189 1160pM Fe,Midnight 1.6015216666666667 0.606843 3.55707 High carbon,Dark 9.647260933333333 0.0 126.214 High carbon,Light 5.426956923076923 0.0 14.2945 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.770238 0.238606 1.30072 Silicon starvation,12h 0.107367 0.107367 0.107367