condition mean min max 12pM Fe,Midday 44.4086 44.4086 44.4086 12pM Fe,Midnight 36.50285 31.532 41.4737 58pM Fe,Midday 24.1189 24.1189 24.1189 58pM Fe,Midnight 25.176571428571428 0.0 33.1898 233pM Fe,Midnight 17.369233333333334 15.8308 18.8104 1160pM Fe,Midday 13.637514285714285 11.1194 16.9057 1160pM Fe,Midnight 16.73069 6.60397 33.7329 High carbon,Dark 28.925733333333334 13.1061 52.2826 High carbon,Light 20.116893846153847 1.08182 34.5372 Low carbon,Dark 26.3766 26.3766 26.3766 Phloroglucinol 62.46886666666667 43.6098 92.7476 Silicon starvation,12h 36.768 36.768 36.768