condition mean min max 12pM Fe,Midday 38.3021 38.3021 38.3021 12pM Fe,Midnight 32.95975 31.7805 34.139 58pM Fe,Midday 34.183 34.183 34.183 58pM Fe,Midnight 24.617314285714286 21.6318 29.2815 233pM Fe,Midnight 23.7641 22.6222 24.7736 1160pM Fe,Midday 25.537414285714284 23.9204 27.4714 1160pM Fe,Midnight 15.307549999999999 12.3835 18.8293 High carbon,Dark 22.188209333333333 9.26914 33.1769 High carbon,Light 18.665636923076924 3.68206 30.8289 Low carbon,Dark 17.2664 17.2664 17.2664 Phloroglucinol 27.3944 23.5882 32.6611 Silicon starvation,12h 42.1794 42.1794 42.1794