condition mean min max 12pM Fe,Midday 67.7494 67.7494 67.7494 12pM Fe,Midnight 40.4959 39.1204 41.8714 58pM Fe,Midday 54.6382 54.6382 54.6382 58pM Fe,Midnight 26.576271428571427 0.0 34.472 233pM Fe,Midnight 22.794366666666665 21.3372 23.7587 1160pM Fe,Midday 47.22542857142857 40.8089 51.6029 1160pM Fe,Midnight 17.607916666666668 12.7707 21.7573 High carbon,Dark 31.110906666666665 17.5754 43.6611 High carbon,Light 30.211492307692307 10.0282 54.097 Low carbon,Dark 36.8016 36.8016 36.8016 Phloroglucinol 22.815033333333332 19.6499 28.8814 Silicon starvation,12h 84.2534 84.2534 84.2534