condition mean min max 12pM Fe,Midday 36.647 36.647 36.647 12pM Fe,Midnight 36.939099999999996 35.395 38.4832 58pM Fe,Midday 30.687 30.687 30.687 58pM Fe,Midnight 29.251771428571427 20.2211 63.5488 233pM Fe,Midnight 19.524833333333333 19.2601 19.9216 1160pM Fe,Midday 6.92241 5.21885 8.71532 1160pM Fe,Midnight 14.872133333333334 11.9288 19.3287 High carbon,Dark 30.794486666666668 14.049 61.0341 High carbon,Light 22.58181615384615 0.0 86.2982 Low carbon,Dark 14.5244 14.5244 14.5244 Phloroglucinol 3.8349233333333332 1.7051 6.10304 Silicon starvation,12h 34.277 34.277 34.277