condition mean min max 12pM Fe,Midday 19.2011 19.2011 19.2011 12pM Fe,Midnight 11.3645 11.1459 11.5831 58pM Fe,Midday 10.6414 10.6414 10.6414 58pM Fe,Midnight 7.173467142857143 0.0 9.52748 233pM Fe,Midnight 4.415233333333334 4.36291 4.49966 1160pM Fe,Midday 6.55277 5.57576 8.1349 1160pM Fe,Midnight 2.9242891666666666 1.40289 4.4586 High carbon,Dark 6.732776666666667 2.38625 16.5229 High carbon,Light 5.752544615384616 2.20465 12.6623 Low carbon,Dark 5.77386 5.77386 5.77386 Phloroglucinol 5.13189 3.12573 6.61069 Silicon starvation,12h 3.57681 3.57681 3.57681