condition mean min max 12pM Fe,Midday 30.0088 30.0088 30.0088 12pM Fe,Midnight 39.6485 38.9721 40.3249 58pM Fe,Midday 131.473 131.473 131.473 58pM Fe,Midnight 70.68858571428571 56.4542 119.862 233pM Fe,Midnight 86.68723333333334 84.8684 88.6572 1160pM Fe,Midday 125.70551428571429 88.3842 168.252 1160pM Fe,Midnight 221.536 128.978 326.097 High carbon,Dark 137.20812666666666 13.8945 244.451 High carbon,Light 118.8561723076923 1.4978 331.761 Low carbon,Dark 103.645 103.645 103.645 Phloroglucinol 71.90123333333334 39.1671 123.777 Silicon starvation,12h 109.639 109.639 109.639