condition mean min max 12pM Fe,Midday 261.877 261.877 261.877 12pM Fe,Midnight 1.815338 0.916976 2.7137 58pM Fe,Midday 191.931 191.931 191.931 58pM Fe,Midnight 1.741002857142857 0.0 2.78989 233pM Fe,Midnight 1.8378966666666667 1.09318 2.74561 1160pM Fe,Midday 70.2157 40.826 98.7537 1160pM Fe,Midnight 5.230659166666666 2.27413 8.87266 High carbon,Dark 15.517006666666667 1.77675 52.6956 High carbon,Light 52.293236923076925 0.0 158.677 Low carbon,Dark 4.29839 4.29839 4.29839 Phloroglucinol 20.899006666666665 9.47672 36.6446 Silicon starvation,12h 13.0438 13.0438 13.0438