condition mean min max 12pM Fe,Midday 40.0092 40.0092 40.0092 12pM Fe,Midnight 37.020399999999995 34.4724 39.5684 58pM Fe,Midday 27.6506 27.6506 27.6506 58pM Fe,Midnight 24.878785714285716 0.0 33.9063 233pM Fe,Midnight 23.1077 21.4152 24.3963 1160pM Fe,Midday 18.139785714285715 15.7833 20.3291 1160pM Fe,Midnight 11.654463333333334 4.53452 25.0919 High carbon,Dark 19.807001333333332 6.63132 34.4452 High carbon,Light 11.309287692307693 3.30144 19.3168 Low carbon,Dark 15.9347 15.9347 15.9347 Phloroglucinol 23.069233333333333 18.9296 30.287 Silicon starvation,12h 26.8555 26.8555 26.8555