condition mean min max 12pM Fe,Midday 29.7806 29.7806 29.7806 12pM Fe,Midnight 29.4235 26.5064 32.3406 58pM Fe,Midday 15.9057 15.9057 15.9057 58pM Fe,Midnight 39.971314285714286 22.8707 95.3748 233pM Fe,Midnight 38.987033333333336 37.0334 40.9133 1160pM Fe,Midday 17.848742857142856 15.8198 20.2827 1160pM Fe,Midnight 46.0523 33.2174 58.8122 High carbon,Dark 34.360393333333334 18.8966 56.5982 High carbon,Light 34.660746153846155 14.7188 46.0402 Low carbon,Dark 18.0926 18.0926 18.0926 Phloroglucinol 15.613733333333334 11.8813 17.9798 Silicon starvation,12h 53.5041 53.5041 53.5041