condition mean min max 12pM Fe,Midday 73.7423 73.7423 73.7423 12pM Fe,Midnight 35.86775 33.3318 38.4037 58pM Fe,Midday 46.8608 46.8608 46.8608 58pM Fe,Midnight 20.2096 0.0 25.1589 233pM Fe,Midnight 26.3976 25.1297 27.2413 1160pM Fe,Midday 40.40474285714286 38.1612 43.7989 1160pM Fe,Midnight 12.25656 8.50784 16.0986 High carbon,Dark 25.617208 8.80384 51.4106 High carbon,Light 25.35473153846154 2.50602 58.9296 Low carbon,Dark 15.6652 15.6652 15.6652 Phloroglucinol 37.27356666666667 24.1635 52.1173 Silicon starvation,12h 47.4422 47.4422 47.4422