condition mean min max 12pM Fe,Midday 21.3865 21.3865 21.3865 12pM Fe,Midnight 26.1037 24.8259 27.3815 58pM Fe,Midday 17.2197 17.2197 17.2197 58pM Fe,Midnight 18.415157142857144 0.0 23.5416 233pM Fe,Midnight 9.511176666666668 9.31009 9.6139 1160pM Fe,Midday 12.467485714285715 10.2261 15.0462 1160pM Fe,Midnight 20.8609225 9.84221 28.2939 High carbon,Dark 19.418356666666668 1.89081 33.6551 High carbon,Light 14.311386923076924 7.55524 27.188 Low carbon,Dark 15.4797 15.4797 15.4797 Phloroglucinol 2.718773333333333 1.68201 4.67352 Silicon starvation,12h 21.804 21.804 21.804