condition mean min max 12pM Fe,Midday 33.1538 33.1538 33.1538 12pM Fe,Midnight 32.7606 32.6516 32.8696 58pM Fe,Midday 29.5316 29.5316 29.5316 58pM Fe,Midnight 19.645500000000002 0.0 26.9908 233pM Fe,Midnight 22.874866666666666 20.9225 24.2729 1160pM Fe,Midday 29.50765714285714 24.4518 39.427 1160pM Fe,Midnight 9.526939166666667 7.55122 11.9239 High carbon,Dark 19.720717999999998 2.80248 41.8654 High carbon,Light 15.87506076923077 1.56145 31.0877 Low carbon,Dark 29.8101 29.8101 29.8101 Phloroglucinol 6.248066666666666 5.54001 6.77631 Silicon starvation,12h 37.7137 37.7137 37.7137