condition mean min max 12pM Fe,Midday 20.671 20.671 20.671 12pM Fe,Midnight 13.59375 12.6627 14.5248 58pM Fe,Midday 12.2773 12.2773 12.2773 58pM Fe,Midnight 8.580494285714286 0.0 13.2153 233pM Fe,Midnight 7.495103333333334 6.70116 8.07451 1160pM Fe,Midday 5.026874285714285 2.79832 7.17895 1160pM Fe,Midnight 2.8423325 1.43584 4.55306 High carbon,Dark 10.249856666666666 4.48798 21.8798 High carbon,Light 6.171271538461538 0.0 12.7903 Low carbon,Dark 5.52159 5.52159 5.52159 Phloroglucinol 11.339083333333333 9.93655 13.6974 Silicon starvation,12h 29.4835 29.4835 29.4835