condition mean min max 12pM Fe,Midday 18.6072 18.6072 18.6072 12pM Fe,Midnight 18.18415 14.7677 21.6006 58pM Fe,Midday 14.7314 14.7314 14.7314 58pM Fe,Midnight 13.891842857142857 0.0 20.9375 233pM Fe,Midnight 15.223766666666666 12.1416 17.6725 1160pM Fe,Midday 18.4063 14.4703 20.969 1160pM Fe,Midnight 4.5038925 1.51716 11.6041 High carbon,Dark 7.194387333333333 2.45229 13.3503 High carbon,Light 6.998361 0.0 13.6595 Low carbon,Dark 6.36547 6.36547 6.36547 Phloroglucinol 16.689633333333333 13.5008 22.0181 Silicon starvation,12h 12.5371 12.5371 12.5371