condition mean min max 12pM Fe,Midday 58.907 58.907 58.907 12pM Fe,Midnight 50.85235 50.0376 51.6671 58pM Fe,Midday 40.9827 40.9827 40.9827 58pM Fe,Midnight 57.227871428571426 36.4346 159.852 233pM Fe,Midnight 45.564166666666665 42.9275 48.1182 1160pM Fe,Midday 39.25595714285714 32.1238 44.9104 1160pM Fe,Midnight 32.672383333333336 24.6056 40.7514 High carbon,Dark 43.96440666666667 22.7698 56.1914 High carbon,Light 37.07257692307692 16.6528 61.9345 Low carbon,Dark 29.228 29.228 29.228 Phloroglucinol 25.082 18.1947 36.7634 Silicon starvation,12h 59.6129 59.6129 59.6129