condition mean min max 12pM Fe,Midday 21.5643 21.5643 21.5643 12pM Fe,Midnight 16.88355 15.689 18.0781 58pM Fe,Midday 16.7446 16.7446 16.7446 58pM Fe,Midnight 12.207514285714286 0.0 15.9798 233pM Fe,Midnight 18.315666666666665 17.6249 19.1648 1160pM Fe,Midday 12.355528571428572 10.6432 14.4245 1160pM Fe,Midnight 25.315308333333334 19.2 33.9004 High carbon,Dark 20.576664 2.61566 37.9633 High carbon,Light 17.93317846153846 1.19227 44.0445 Low carbon,Dark 9.11785 9.11785 9.11785 Phloroglucinol 5.609723333333333 4.3126 7.34588 Silicon starvation,12h 26.0412 26.0412 26.0412