condition mean min max 12pM Fe,Midday 41.3645 41.3645 41.3645 12pM Fe,Midnight 26.12675 23.5752 28.6783 58pM Fe,Midday 18.4855 18.4855 18.4855 58pM Fe,Midnight 22.258657142857142 0.0 30.3276 233pM Fe,Midnight 22.466 19.7758 24.6057 1160pM Fe,Midday 23.583971428571427 16.4285 26.946 1160pM Fe,Midnight 12.063553333333333 8.12151 18.875 High carbon,Dark 21.089877333333334 5.97947 51.0072 High carbon,Light 13.271164846153846 0.0 28.6801 Low carbon,Dark 28.5158 28.5158 28.5158 Phloroglucinol 18.675533333333334 12.5673 23.9117 Silicon starvation,12h 27.3388 27.3388 27.3388