condition mean min max 12pM Fe,Midday 2.53886 2.53886 2.53886 12pM Fe,Midnight 1.5488149999999998 1.44017 1.65746 58pM Fe,Midday 1.22536 1.22536 1.22536 58pM Fe,Midnight 1.5302542857142858 0.0 2.15323 233pM Fe,Midnight 1.9711866666666666 1.65299 2.36074 1160pM Fe,Midday 3.0455814285714284 2.43578 4.0924 1160pM Fe,Midnight 0.8090639166666667 0.193632 1.8802 High carbon,Dark 6.750326666666667 1.61202 13.6866 High carbon,Light 3.1873023076923075 0.271756 7.42904 Low carbon,Dark 2.81287 2.81287 2.81287 Phloroglucinol 9.553113333333334 7.07615 11.9654 Silicon starvation,12h 2.4951 2.4951 2.4951