condition mean min max 12pM Fe,Midday 40.8827 40.8827 40.8827 12pM Fe,Midnight 32.03625 27.9109 36.1616 58pM Fe,Midday 32.4415 32.4415 32.4415 58pM Fe,Midnight 43.2428 30.8809 103.439 233pM Fe,Midnight 27.59723333333333 26.6958 28.1891 1160pM Fe,Midday 23.960085714285714 21.2516 29.5223 1160pM Fe,Midnight 15.419991666666666 11.1119 22.7556 High carbon,Dark 23.914810666666668 9.91546 38.6288 High carbon,Light 17.070213846153845 2.4491 31.7927 Low carbon,Dark 13.7121 13.7121 13.7121 Phloroglucinol 34.700833333333335 24.433 52.5349 Silicon starvation,12h 29.2211 29.2211 29.2211