condition mean min max 12pM Fe,Midday 34.8324 34.8324 34.8324 12pM Fe,Midnight 26.646050000000002 26.056 27.2361 58pM Fe,Midday 28.0426 28.0426 28.0426 58pM Fe,Midnight 33.425985714285716 22.1204 88.4768 233pM Fe,Midnight 15.661766666666667 15.2895 16.0655 1160pM Fe,Midday 24.751785714285713 23.611 26.6501 1160pM Fe,Midnight 7.827680833333334 5.30389 9.68289 High carbon,Dark 19.521384 5.21006 40.4345 High carbon,Light 13.895406923076923 4.88795 23.7335 Low carbon,Dark 12.0591 12.0591 12.0591 Phloroglucinol 12.5576 10.7108 14.4854 Silicon starvation,12h 18.6505 18.6505 18.6505