condition mean min max 12pM Fe,Midday 34.8083 34.8083 34.8083 12pM Fe,Midnight 30.372149999999998 28.8206 31.9237 58pM Fe,Midday 26.6772 26.6772 26.6772 58pM Fe,Midnight 26.604785714285715 19.7162 48.7161 233pM Fe,Midnight 23.394366666666667 22.9577 23.9488 1160pM Fe,Midday 22.49607142857143 20.1686 24.9187 1160pM Fe,Midnight 17.628283333333332 13.431 20.8819 High carbon,Dark 26.501433333333335 17.376 41.5181 High carbon,Light 22.941024615384617 4.80598 36.527 Low carbon,Dark 16.9241 16.9241 16.9241 Phloroglucinol 46.32403333333333 41.2677 51.3521 Silicon starvation,12h 37.8163 37.8163 37.8163