condition mean min max 12pM Fe,Midday 66.9765 66.9765 66.9765 12pM Fe,Midnight 52.21455 50.9877 53.4414 58pM Fe,Midday 50.7423 50.7423 50.7423 58pM Fe,Midnight 37.99037142857143 0.0 54.4274 233pM Fe,Midnight 25.186566666666668 24.1513 26.0547 1160pM Fe,Midday 30.200185714285713 22.3758 38.3658 1160pM Fe,Midnight 17.396859166666665 9.33309 24.3141 High carbon,Dark 47.34759 8.31615 101.441 High carbon,Light 32.377915384615385 11.8792 63.6742 Low carbon,Dark 36.9894 36.9894 36.9894 Phloroglucinol 4.378686666666667 2.74309 5.96485 Silicon starvation,12h 14.446 14.446 14.446