condition mean min max 12pM Fe,Midday 18.4964 18.4964 18.4964 12pM Fe,Midnight 26.54345 26.1695 26.9174 58pM Fe,Midday 13.9978 13.9978 13.9978 58pM Fe,Midnight 27.320485714285716 17.3167 75.5391 233pM Fe,Midnight 16.51043333333333 14.5994 18.1469 1160pM Fe,Midday 10.969391428571429 8.03465 13.113 1160pM Fe,Midnight 8.76892 6.15269 12.4145 High carbon,Dark 15.655504 4.34076 24.1654 High carbon,Light 10.14136846153846 3.4027 13.9678 Low carbon,Dark 16.801 16.801 16.801 Phloroglucinol 7.6084 3.98601 13.5362 Silicon starvation,12h 24.229 24.229 24.229