condition mean min max 12pM Fe,Midday 22.8591 22.8591 22.8591 12pM Fe,Midnight 27.687150000000003 24.122 31.2523 58pM Fe,Midday 33.9258 33.9258 33.9258 58pM Fe,Midnight 18.426485714285715 0.0 23.1902 233pM Fe,Midnight 23.729633333333332 22.4137 26.144 1160pM Fe,Midday 19.512999999999998 16.2139 22.2332 1160pM Fe,Midnight 10.628896666666666 7.16211 15.1282 High carbon,Dark 15.472648666666666 3.35707 31.8254 High carbon,Light 11.933386153846154 3.64451 23.9808 Low carbon,Dark 7.17256 7.17256 7.17256 Phloroglucinol 43.842333333333336 34.0219 59.8739 Silicon starvation,12h 42.253 42.253 42.253