condition mean min max 12pM Fe,Midday 37.0883 37.0883 37.0883 12pM Fe,Midnight 26.399549999999998 25.6573 27.1418 58pM Fe,Midday 27.6471 27.6471 27.6471 58pM Fe,Midnight 20.917357142857142 0.0 25.3573 233pM Fe,Midnight 8.06007 6.88576 8.90457 1160pM Fe,Midday 15.778942857142857 14.543 16.8957 1160pM Fe,Midnight 7.6179516666666665 5.04765 12.3272 High carbon,Dark 9.834070666666666 1.9294 15.395 High carbon,Light 6.971631538461538 1.0246 13.4863 Low carbon,Dark 8.70378 8.70378 8.70378 Phloroglucinol 6.9617933333333335 6.45852 7.962 Silicon starvation,12h 8.31154 8.31154 8.31154