condition mean min max 12pM Fe,Midday 67.6096 67.6096 67.6096 12pM Fe,Midnight 33.48975 31.8239 35.1556 58pM Fe,Midday 42.9326 42.9326 42.9326 58pM Fe,Midnight 43.706785714285715 21.5451 141.378 233pM Fe,Midnight 17.5138 14.299 21.1527 1160pM Fe,Midday 30.328714285714284 24.3674 37.4862 1160pM Fe,Midnight 15.17765 12.3451 19.4707 High carbon,Dark 22.004813333333335 11.3831 32.857 High carbon,Light 22.636456923076924 7.25263 39.4047 Low carbon,Dark 10.3401 10.3401 10.3401 Phloroglucinol 13.271466666666667 8.7224 16.2573 Silicon starvation,12h 26.7011 26.7011 26.7011