condition mean min max 12pM Fe,Midday 33.8363 33.8363 33.8363 12pM Fe,Midnight 24.3874 23.2348 25.54 58pM Fe,Midday 25.8353 25.8353 25.8353 58pM Fe,Midnight 16.118214285714284 0.0 20.958 233pM Fe,Midnight 29.384633333333333 26.6078 31.0985 1160pM Fe,Midday 24.177442857142857 21.2079 27.4171 1160pM Fe,Midnight 12.209553333333334 6.24871 22.9473 High carbon,Dark 26.39424 14.7703 35.1906 High carbon,Light 16.664594615384615 6.65336 26.5536 Low carbon,Dark 24.3875 24.3875 24.3875 Phloroglucinol 4.967086666666667 3.59078 6.135 Silicon starvation,12h 45.6454 45.6454 45.6454