condition mean min max 12pM Fe,Midday 30.8988 30.8988 30.8988 12pM Fe,Midnight 22.45195 21.2969 23.607 58pM Fe,Midday 21.578 21.578 21.578 58pM Fe,Midnight 14.704571428571429 0.0 19.3471 233pM Fe,Midnight 7.88705 7.48082 8.25374 1160pM Fe,Midday 12.18297142857143 10.9257 13.5698 1160pM Fe,Midnight 14.155304166666667 6.31194 20.1551 High carbon,Dark 11.968224666666666 2.06442 32.5165 High carbon,Light 9.983151538461538 1.47612 20.1924 Low carbon,Dark 11.8762 11.8762 11.8762 Phloroglucinol 7.89251 6.39354 9.79029 Silicon starvation,12h 1.93509 1.93509 1.93509