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 0.00018011714285714285 0.0 0.00126082 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.00020944471428571427 0.0 0.001055 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.10605627113333332 0.0 1.59082 High carbon,Light 0.00026487384615384615 0.0 0.00344336 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.0 0.0 0.0