condition mean min max 12pM Fe,Midday 24.7884 24.7884 24.7884 12pM Fe,Midnight 17.245449999999998 17.0666 17.4243 58pM Fe,Midday 18.0752 18.0752 18.0752 58pM Fe,Midnight 19.561757142857143 14.2521 40.796 233pM Fe,Midnight 13.489466666666667 13.079 13.8012 1160pM Fe,Midday 12.838057142857142 10.6272 15.0565 1160pM Fe,Midnight 14.249375 10.4894 21.7464 High carbon,Dark 15.652458 9.12587 23.2304 High carbon,Light 13.471511538461538 1.1269 22.3193 Low carbon,Dark 8.76468 8.76468 8.76468 Phloroglucinol 14.0359 11.9715 17.983 Silicon starvation,12h 18.6745 18.6745 18.6745