condition mean min max 12pM Fe,Midday 4.70696 4.70696 4.70696 12pM Fe,Midnight 140.1225 138.56 141.685 58pM Fe,Midday 4.28063 4.28063 4.28063 58pM Fe,Midnight 158.02014285714284 92.959 194.428 233pM Fe,Midnight 103.31033333333333 100.835 106.906 1160pM Fe,Midday 64.31978571428571 47.592 78.1291 1160pM Fe,Midnight 88.265875 75.2513 95.9508 High carbon,Dark 54.810295333333336 3.10843 139.216 High carbon,Light 41.51734230769231 1.93682 197.738 Low carbon,Dark 34.6313 34.6313 34.6313 Phloroglucinol 6.611646666666667 5.25568 8.76218 Silicon starvation,12h 45.0072 45.0072 45.0072