condition mean min max 12pM Fe,Midday 20.7328 20.7328 20.7328 12pM Fe,Midnight 18.7553 16.5037 21.0069 58pM Fe,Midday 14.7215 14.7215 14.7215 58pM Fe,Midnight 13.473642857142858 0.0 18.6271 233pM Fe,Midnight 12.956900000000001 11.5069 15.781 1160pM Fe,Midday 16.396085714285714 14.2911 19.4504 1160pM Fe,Midnight 8.832179166666666 7.27621 11.5629 High carbon,Dark 14.783399333333334 9.20867 22.6532 High carbon,Light 18.638404615384616 3.23152 39.3439 Low carbon,Dark 10.8141 10.8141 10.8141 Phloroglucinol 25.345533333333332 18.286 36.0978 Silicon starvation,12h 29.7092 29.7092 29.7092