condition mean min max 12pM Fe,Midday 31.2138 31.2138 31.2138 12pM Fe,Midnight 35.30175 31.1155 39.488 58pM Fe,Midday 24.6142 24.6142 24.6142 58pM Fe,Midnight 28.081842857142856 0.0 37.8745 233pM Fe,Midnight 33.3457 29.9018 36.0919 1160pM Fe,Midday 27.295671428571428 24.6045 30.8611 1160pM Fe,Midnight 23.350916666666667 19.284 28.3753 High carbon,Dark 38.0128 23.8031 56.955 High carbon,Light 28.14896153846154 10.4361 49.251 Low carbon,Dark 28.12 28.12 28.12 Phloroglucinol 32.390566666666665 23.2104 41.43 Silicon starvation,12h 43.801 43.801 43.801