condition mean min max 12pM Fe,Midday 23.2284 23.2284 23.2284 12pM Fe,Midnight 27.709000000000003 21.4682 33.9498 58pM Fe,Midday 19.4425 19.4425 19.4425 58pM Fe,Midnight 18.513771428571427 0.0 24.3459 233pM Fe,Midnight 15.350533333333333 15.1175 15.6964 1160pM Fe,Midday 14.3378 10.5468 18.0607 1160pM Fe,Midnight 8.814545833333334 3.63537 18.442 High carbon,Dark 26.16034 12.4234 46.3846 High carbon,Light 17.527716923076923 5.66706 31.1814 Low carbon,Dark 25.1635 25.1635 25.1635 Phloroglucinol 15.067 14.2932 15.8255 Silicon starvation,12h 23.5749 23.5749 23.5749