condition mean min max 12pM Fe,Midday 0.329189 0.329189 0.329189 12pM Fe,Midnight 0.568256 0.337711 0.798801 58pM Fe,Midday 0.485469 0.485469 0.485469 58pM Fe,Midnight 0.41171671428571427 0.0 0.833514 233pM Fe,Midnight 0.2732001333333333 0.0694784 0.410017 1160pM Fe,Midday 0.1692970285714286 0.0843006 0.345159 1160pM Fe,Midnight 1.2300531666666665 0.157739 2.33947 High carbon,Dark 0.9100912 0.231618 1.96292 High carbon,Light 0.3020896153846154 0.0 0.657101 Low carbon,Dark 0.534919 0.534919 0.534919 Phloroglucinol 5.5419133333333335 1.71898 11.4381 Silicon starvation,12h 0.374596 0.374596 0.374596