condition mean min max 12pM Fe,Midday 40.2394 40.2394 40.2394 12pM Fe,Midnight 40.028549999999996 36.4771 43.58 58pM Fe,Midday 42.5026 42.5026 42.5026 58pM Fe,Midnight 39.07855714285714 31.7029 69.2714 233pM Fe,Midnight 28.297933333333333 26.0918 29.8588 1160pM Fe,Midday 29.685357142857143 27.7704 31.3248 1160pM Fe,Midnight 37.005125 25.1471 46.1803 High carbon,Dark 34.172944666666666 9.52697 81.9987 High carbon,Light 27.797353076923077 6.42379 45.885 Low carbon,Dark 20.2654 20.2654 20.2654 Phloroglucinol 47.27053333333333 37.6982 54.2328 Silicon starvation,12h 53.2737 53.2737 53.2737