condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 1.741005 1.15015 2.33186 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 1.4698992857142856 0.0 3.7008 233pM Fe,Midnight 0.231661 0.0 0.694983 1160pM Fe,Midday 3.504852857142857 1.89321 4.48445 1160pM Fe,Midnight 1.4502334166666666 0.0 4.21518 High carbon,Dark 2.409776 0.0 20.3778 High carbon,Light 5.305643076923077 0.0 22.9713 Low carbon,Dark 29.1487 29.1487 29.1487 Phloroglucinol 2.4156026666666666 0.702528 4.2528 Silicon starvation,12h 6.37887 6.37887 6.37887