condition mean min max 12pM Fe,Midday 17.3791 17.3791 17.3791 12pM Fe,Midnight 21.55865 17.0966 26.0207 58pM Fe,Midday 14.7544 14.7544 14.7544 58pM Fe,Midnight 27.827857142857145 15.8574 83.4869 233pM Fe,Midnight 9.011733333333334 8.15271 9.81444 1160pM Fe,Midday 9.374552857142858 7.32729 12.6216 1160pM Fe,Midnight 7.7509266666666665 5.56558 11.7268 High carbon,Dark 10.329964 2.47864 35.0197 High carbon,Light 5.3519113076923075 0.0 18.7182 Low carbon,Dark 12.5937 12.5937 12.5937 Phloroglucinol 2.21646 1.32448 3.84012 Silicon starvation,12h 2.00436 2.00436 2.00436