condition mean min max 12pM Fe,Midday 13.6327 13.6327 13.6327 12pM Fe,Midnight 12.26755 8.5515 15.9836 58pM Fe,Midday 8.80781 8.80781 8.80781 58pM Fe,Midnight 7.370665714285715 0.0 10.2277 233pM Fe,Midnight 8.712763333333333 7.27718 10.2761 1160pM Fe,Midday 7.646547142857143 6.64981 8.95265 1160pM Fe,Midnight 4.952911666666667 2.72312 6.73064 High carbon,Dark 8.505308666666666 2.64488 14.8108 High carbon,Light 6.192456615384615 0.254786 12.9272 Low carbon,Dark 5.9777 5.9777 5.9777 Phloroglucinol 24.508766666666666 18.1337 32.2721 Silicon starvation,12h 24.7472 24.7472 24.7472