condition mean min max 12pM Fe,Midday 13.1211 13.1211 13.1211 12pM Fe,Midnight 31.201249999999998 26.6971 35.7054 58pM Fe,Midday 34.2499 34.2499 34.2499 58pM Fe,Midnight 28.788857142857143 0.0 47.804 233pM Fe,Midnight 31.7275 31.0513 32.8165 1160pM Fe,Midday 6.290557142857143 5.16998 8.50035 1160pM Fe,Midnight 18.244225 11.5697 32.0659 High carbon,Dark 13.31086 3.43657 25.9989 High carbon,Light 7.333037692307692 1.02994 19.1725 Low carbon,Dark 6.75172 6.75172 6.75172 Phloroglucinol 10.431166666666666 7.18934 15.197 Silicon starvation,12h 24.2628 24.2628 24.2628