condition mean min max 12pM Fe,Midday 5.1629 5.1629 5.1629 12pM Fe,Midnight 6.285625 5.57773 6.99352 58pM Fe,Midday 7.6561 7.6561 7.6561 58pM Fe,Midnight 7.851831428571429 5.14037 17.8189 233pM Fe,Midnight 4.314086666666666 4.21423 4.44336 1160pM Fe,Midday 5.254307142857143 4.00495 6.68694 1160pM Fe,Midnight 3.9935883333333333 2.61653 4.86955 High carbon,Dark 14.6840352 0.397227 55.6217 High carbon,Light 7.835233076923077 1.11887 45.2443 Low carbon,Dark 23.3766 23.3766 23.3766 Phloroglucinol 7.355353333333333 6.51206 7.77999 Silicon starvation,12h 13.2902 13.2902 13.2902