condition mean min max 12pM Fe,Midday 13.6387 13.6387 13.6387 12pM Fe,Midnight 15.483699999999999 13.7109 17.2565 58pM Fe,Midday 8.04542 8.04542 8.04542 58pM Fe,Midnight 9.656322857142857 0.0 16.8659 233pM Fe,Midnight 9.498293333333333 7.60911 13.2414 1160pM Fe,Midday 7.286504285714286 5.26243 8.93771 1160pM Fe,Midnight 8.003001666666666 4.71351 10.6793 High carbon,Dark 13.191044 3.25305 43.9534 High carbon,Light 8.762878461538461 2.14114 14.6761 Low carbon,Dark 4.43247 4.43247 4.43247 Phloroglucinol 27.53783333333333 25.0885 29.8918 Silicon starvation,12h 38.2826 38.2826 38.2826