condition mean min max 12pM Fe,Midday 33.5815 33.5815 33.5815 12pM Fe,Midnight 47.01685 38.7386 55.2951 58pM Fe,Midday 38.2043 38.2043 38.2043 58pM Fe,Midnight 34.04262857142857 0.0 43.7816 233pM Fe,Midnight 26.5353 24.9556 28.4103 1160pM Fe,Midday 34.11884285714286 30.1805 40.5985 1160pM Fe,Midnight 28.474316666666667 21.2776 34.0917 High carbon,Dark 27.059826666666666 15.7677 46.689 High carbon,Light 20.637622307692308 6.49844 32.613 Low carbon,Dark 24.7623 24.7623 24.7623 Phloroglucinol 55.1124 50.3118 58.8851 Silicon starvation,12h 25.3687 25.3687 25.3687