condition mean min max 12pM Fe,Midday 33.8016 33.8016 33.8016 12pM Fe,Midnight 18.4661 17.4055 19.5267 58pM Fe,Midday 25.5535 25.5535 25.5535 58pM Fe,Midnight 13.001714285714286 0.0 20.4106 233pM Fe,Midnight 9.379563333333333 7.52699 10.5973 1160pM Fe,Midday 17.574942857142858 13.1103 23.6063 1160pM Fe,Midnight 6.411661666666666 3.53815 8.91195 High carbon,Dark 10.498336 0.0 18.6266 High carbon,Light 11.598876153846154 0.93742 25.7443 Low carbon,Dark 10.1321 10.1321 10.1321 Phloroglucinol 4.174896666666667 3.73457 4.47167 Silicon starvation,12h 31.7423 31.7423 31.7423