condition mean min max 12pM Fe,Midday 14.3706 14.3706 14.3706 12pM Fe,Midnight 26.84615 23.1903 30.502 58pM Fe,Midday 18.416 18.416 18.416 58pM Fe,Midnight 21.353571428571428 0.0 29.8736 233pM Fe,Midnight 37.48043333333333 35.7692 39.8102 1160pM Fe,Midday 12.86167 8.78639 15.1977 1160pM Fe,Midnight 28.189675 20.3475 37.065 High carbon,Dark 24.726486666666666 10.2102 43.0165 High carbon,Light 15.657195384615385 0.0 28.0061 Low carbon,Dark 19.3256 19.3256 19.3256 Phloroglucinol 9.75682 5.9525 15.2153 Silicon starvation,12h 35.5252 35.5252 35.5252