condition mean min max 12pM Fe,Midday 15.4158 15.4158 15.4158 12pM Fe,Midnight 16.399 14.2104 18.5876 58pM Fe,Midday 16.0129 16.0129 16.0129 58pM Fe,Midnight 9.207205714285713 0.0 13.0269 233pM Fe,Midnight 8.42863 8.06995 8.62923 1160pM Fe,Midday 8.169952857142857 6.62362 8.93655 1160pM Fe,Midnight 17.469128333333334 4.8175 26.7631 High carbon,Dark 10.682444 2.12461 24.7608 High carbon,Light 9.08909 2.89363 17.553 Low carbon,Dark 10.8913 10.8913 10.8913 Phloroglucinol 18.52413333333333 12.0399 25.8764 Silicon starvation,12h 8.38974 8.38974 8.38974