condition mean min max 12pM Fe,Midday 18.3496 18.3496 18.3496 12pM Fe,Midnight 18.191200000000002 17.9604 18.422 58pM Fe,Midday 14.4133 14.4133 14.4133 58pM Fe,Midnight 18.118385714285715 14.4141 34.8826 233pM Fe,Midnight 14.703066666666667 14.0553 15.3287 1160pM Fe,Midday 14.985271428571428 13.9465 16.9017 1160pM Fe,Midnight 5.920538333333333 3.61032 8.50232 High carbon,Dark 10.478768666666667 1.71076 25.6387 High carbon,Light 8.077975384615385 0.34661 20.7253 Low carbon,Dark 16.1046 16.1046 16.1046 Phloroglucinol 9.360193333333333 8.6084 10.2286 Silicon starvation,12h 11.7245 11.7245 11.7245