condition mean min max 12pM Fe,Midday 18.6354 18.6354 18.6354 12pM Fe,Midnight 18.0491 16.3524 19.7458 58pM Fe,Midday 22.8157 22.8157 22.8157 58pM Fe,Midnight 21.814814285714284 15.2168 41.6644 233pM Fe,Midnight 11.283166666666666 10.4377 12.2059 1160pM Fe,Midday 14.7321 12.2709 16.8332 1160pM Fe,Midnight 4.654166666666667 1.01804 11.6334 High carbon,Dark 12.640017333333333 5.57282 19.5553 High carbon,Light 8.449848461538462 2.22268 15.1798 Low carbon,Dark 9.71306 9.71306 9.71306 Phloroglucinol 5.268206666666667 4.40658 5.98884 Silicon starvation,12h 8.06894 8.06894 8.06894