condition mean min max 12pM Fe,Midday 20.8455 20.8455 20.8455 12pM Fe,Midnight 22.46145 19.8813 25.0416 58pM Fe,Midday 29.34 29.34 29.34 58pM Fe,Midnight 12.969242857142858 0.0 18.0938 233pM Fe,Midnight 7.383516666666667 6.96316 7.86986 1160pM Fe,Midday 15.164657142857143 13.8046 17.3268 1160pM Fe,Midnight 9.0038425 4.23931 13.2855 High carbon,Dark 6.219690666666667 1.5457 14.7237 High carbon,Light 5.873642307692307 0.292611 13.343 Low carbon,Dark 7.37135 7.37135 7.37135 Phloroglucinol 30.557366666666667 24.9238 35.6154 Silicon starvation,12h 26.6706 26.6706 26.6706