condition mean min max 12pM Fe,Midday 52.8169 52.8169 52.8169 12pM Fe,Midnight 37.81425 33.3591 42.2694 58pM Fe,Midday 36.4581 36.4581 36.4581 58pM Fe,Midnight 43.097385714285714 27.5053 98.302 233pM Fe,Midnight 40.10256666666667 39.0455 41.9976 1160pM Fe,Midday 35.303514285714286 30.979 41.4268 1160pM Fe,Midnight 34.140075 25.7037 39.2945 High carbon,Dark 42.78484666666667 25.632 59.0885 High carbon,Light 45.898707692307696 31.0135 65.2731 Low carbon,Dark 36.8465 36.8465 36.8465 Phloroglucinol 45.553533333333334 34.266 60.2876 Silicon starvation,12h 83.7027 83.7027 83.7027