condition mean min max 12pM Fe,Midday 51.0839 51.0839 51.0839 12pM Fe,Midnight 38.3453 35.9301 40.7605 58pM Fe,Midday 36.4668 36.4668 36.4668 58pM Fe,Midnight 35.3042 22.1357 87.7277 233pM Fe,Midnight 26.132933333333334 24.6297 27.0491 1160pM Fe,Midday 30.79052857142857 28.8486 32.7135 1160pM Fe,Midnight 15.330908333333333 12.3225 18.7862 High carbon,Dark 27.538053333333334 10.0892 48.4446 High carbon,Light 24.041730769230767 10.1699 38.8345 Low carbon,Dark 18.4465 18.4465 18.4465 Phloroglucinol 54.287800000000004 50.2717 58.6086 Silicon starvation,12h 50.8289 50.8289 50.8289