condition mean min max 12pM Fe,Midday 4.28325 4.28325 4.28325 12pM Fe,Midnight 4.940555 4.05612 5.82499 58pM Fe,Midday 19.5332 19.5332 19.5332 58pM Fe,Midnight 5.40873 0.0 8.40349 233pM Fe,Midnight 23.5642 22.3657 25.4516 1160pM Fe,Midday 4.542381428571429 2.67472 7.90742 1160pM Fe,Midnight 13.6480245 0.0 42.7582 High carbon,Dark 28.140068666666668 3.13323 55.0026 High carbon,Light 49.63285923076923 0.0 141.986 Low carbon,Dark 9.10169 9.10169 9.10169 Phloroglucinol 4.306263333333333 2.08304 7.01967 Silicon starvation,12h 21.9333 21.9333 21.9333