condition mean min max 12pM Fe,Midday 15.928 15.928 15.928 12pM Fe,Midnight 18.951999999999998 17.0246 20.8794 58pM Fe,Midday 15.6598 15.6598 15.6598 58pM Fe,Midnight 20.40922857142857 0.0 26.2486 233pM Fe,Midnight 22.041366666666665 20.296 23.6965 1160pM Fe,Midday 22.49854285714286 17.1935 29.4525 1160pM Fe,Midnight 18.80206666666667 11.9771 26.3224 High carbon,Dark 24.052112666666666 9.60189 68.4027 High carbon,Light 48.06636076923077 8.85609 126.543 Low carbon,Dark 26.6014 26.6014 26.6014 Phloroglucinol 139.8269 57.5747 261.82 Silicon starvation,12h 27.9429 27.9429 27.9429