condition mean min max 12pM Fe,Midday 19.1372 19.1372 19.1372 12pM Fe,Midnight 15.3199 14.6919 15.9479 58pM Fe,Midday 15.812 15.812 15.812 58pM Fe,Midnight 10.44517142857143 0.0 13.4918 233pM Fe,Midnight 9.077023333333333 7.70368 10.0561 1160pM Fe,Midday 14.020528571428573 12.441 15.7181 1160pM Fe,Midnight 7.4422950000000005 5.4437 8.93446 High carbon,Dark 7.366905333333333 3.10881 14.4539 High carbon,Light 6.633824692307693 0.343351 13.0491 Low carbon,Dark 6.79607 6.79607 6.79607 Phloroglucinol 13.052066666666667 11.2976 15.6285 Silicon starvation,12h 23.2191 23.2191 23.2191