condition mean min max 12pM Fe,Midday 51.8319 51.8319 51.8319 12pM Fe,Midnight 55.170500000000004 54.6528 55.6882 58pM Fe,Midday 47.2666 47.2666 47.2666 58pM Fe,Midnight 49.57732857142857 38.1489 102.506 233pM Fe,Midnight 34.68593333333333 33.4017 36.331 1160pM Fe,Midday 39.50757142857143 36.5648 44.264 1160pM Fe,Midnight 34.06388333333334 32.0499 36.5165 High carbon,Dark 23.53532 16.2463 44.9465 High carbon,Light 20.06030923076923 2.52814 28.9058 Low carbon,Dark 19.3284 19.3284 19.3284 Phloroglucinol 35.20063333333333 27.4823 44.1045 Silicon starvation,12h 22.8051 22.8051 22.8051