condition mean min max 12pM Fe,Midday 10.8354 10.8354 10.8354 12pM Fe,Midnight 12.3139 11.857 12.7708 58pM Fe,Midday 12.1444 12.1444 12.1444 58pM Fe,Midnight 12.748557142857143 0.0 17.8836 233pM Fe,Midnight 8.743936666666666 7.16461 10.5198 1160pM Fe,Midday 13.340585714285714 10.4699 16.4195 1160pM Fe,Midnight 5.11756 1.67861 8.55609 High carbon,Dark 14.281472666666666 1.14489 27.9006 High carbon,Light 11.709764615384616 2.67512 23.0294 Low carbon,Dark 16.4333 16.4333 16.4333 Phloroglucinol 4.1663 2.95286 4.97914 Silicon starvation,12h 44.799 44.799 44.799