condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.014776528571428572 0.0 0.0538413 233pM Fe,Midnight 0.0267066 0.0 0.0403919 1160pM Fe,Midday 0.03546077142857143 0.0 0.147027 1160pM Fe,Midnight 0.043275716666666665 0.0 0.109686 High carbon,Dark 0.08076146666666667 0.0 0.368945 High carbon,Light 0.05353361538461539 0.0 0.312773 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.43555 0.43555 0.43555