condition mean min max 12pM Fe,Midday 31.775 31.775 31.775 12pM Fe,Midnight 20.60495 19.8662 21.3437 58pM Fe,Midday 27.1118 27.1118 27.1118 58pM Fe,Midnight 17.86332857142857 0.0 23.8808 233pM Fe,Midnight 25.5926 24.1525 27.0652 1160pM Fe,Midday 22.5472 18.6093 24.2437 1160pM Fe,Midnight 15.077066666666667 10.4545 21.4756 High carbon,Dark 17.302214666666668 4.19677 26.4314 High carbon,Light 15.981857692307692 5.12405 23.5019 Low carbon,Dark 13.8303 13.8303 13.8303 Phloroglucinol 9.495563333333333 7.29414 13.0148 Silicon starvation,12h 21.0921 21.0921 21.0921