condition mean min max 12pM Fe,Midday 20.5582 20.5582 20.5582 12pM Fe,Midnight 25.7975 21.5298 30.0652 58pM Fe,Midday 20.0857 20.0857 20.0857 58pM Fe,Midnight 31.586542857142856 19.701 76.1267 233pM Fe,Midnight 19.328666666666667 18.9378 19.9323 1160pM Fe,Midday 14.536071428571429 11.9336 16.9457 1160pM Fe,Midnight 20.431675 12.4205 29.2124 High carbon,Dark 21.267605333333332 8.60018 37.3352 High carbon,Light 13.690315384615385 1.76501 25.4141 Low carbon,Dark 15.3112 15.3112 15.3112 Phloroglucinol 39.379133333333336 37.2319 43.3321 Silicon starvation,12h 45.3258 45.3258 45.3258