condition mean min max 12pM Fe,Midday 29.7893 29.7893 29.7893 12pM Fe,Midnight 26.749299999999998 25.8613 27.6373 58pM Fe,Midday 18.1075 18.1075 18.1075 58pM Fe,Midnight 16.767442857142857 0.0 23.2565 233pM Fe,Midnight 19.862 18.862 21.2943 1160pM Fe,Midday 18.24117142857143 16.9199 19.0649 1160pM Fe,Midnight 16.013171666666665 9.57787 22.2956 High carbon,Dark 20.673364666666668 5.65377 30.3097 High carbon,Light 23.064316923076923 5.79495 41.1405 Low carbon,Dark 18.5208 18.5208 18.5208 Phloroglucinol 40.0449 32.7074 49.1306 Silicon starvation,12h 56.5955 56.5955 56.5955