condition mean min max 12pM Fe,Midday 32.3134 32.3134 32.3134 12pM Fe,Midnight 23.511850000000003 23.2828 23.7409 58pM Fe,Midday 26.2971 26.2971 26.2971 58pM Fe,Midnight 16.739314285714286 0.0 21.5164 233pM Fe,Midnight 20.391133333333332 19.5604 21.7883 1160pM Fe,Midday 24.7891 21.8217 28.5939 1160pM Fe,Midnight 27.25645 11.649 42.5941 High carbon,Dark 22.698488666666666 6.63639 52.7421 High carbon,Light 22.124027692307692 1.56333 52.1393 Low carbon,Dark 13.4088 13.4088 13.4088 Phloroglucinol 28.9181 25.5938 31.4526 Silicon starvation,12h 33.5604 33.5604 33.5604