condition mean min max 12pM Fe,Midday 29.3864 29.3864 29.3864 12pM Fe,Midnight 34.09375 32.3005 35.887 58pM Fe,Midday 20.7277 20.7277 20.7277 58pM Fe,Midnight 20.955142857142857 17.6451 29.847 233pM Fe,Midnight 16.501266666666666 15.6672 17.6499 1160pM Fe,Midday 18.00267142857143 16.0414 19.9489 1160pM Fe,Midnight 9.120262499999999 4.82784 16.3064 High carbon,Dark 16.144918666666666 2.40313 29.9414 High carbon,Light 12.131992307692308 2.51826 29.914 Low carbon,Dark 10.7783 10.7783 10.7783 Phloroglucinol 40.77243333333333 35.7237 44.4466 Silicon starvation,12h 18.8219 18.8219 18.8219