condition mean min max 12pM Fe,Midday 18.6021 18.6021 18.6021 12pM Fe,Midnight 19.07835 18.808 19.3487 58pM Fe,Midday 13.7167 13.7167 13.7167 58pM Fe,Midnight 11.479757142857142 0.0 15.7003 233pM Fe,Midnight 15.558266666666666 15.0502 15.9291 1160pM Fe,Midday 7.672414285714286 6.40852 9.36179 1160pM Fe,Midnight 6.139458333333334 3.89972 8.4533 High carbon,Dark 12.603961666666667 0.902245 56.5092 High carbon,Light 8.058859230769231 1.47602 19.199 Low carbon,Dark 10.4957 10.4957 10.4957 Phloroglucinol 5.48248 4.695 6.68885 Silicon starvation,12h 28.371 28.371 28.371