condition mean min max 12pM Fe,Midday 37.9677 37.9677 37.9677 12pM Fe,Midnight 29.95165 28.5191 31.3842 58pM Fe,Midday 32.1923 32.1923 32.1923 58pM Fe,Midnight 22.48692857142857 16.5811 25.8187 233pM Fe,Midnight 24.09 23.1513 24.6058 1160pM Fe,Midday 26.8579 25.2272 28.9289 1160pM Fe,Midnight 36.623216666666664 12.9855 53.8495 High carbon,Dark 31.1216 14.2681 78.8797 High carbon,Light 29.514415384615383 8.2769 44.6965 Low carbon,Dark 19.7821 19.7821 19.7821 Phloroglucinol 31.414966666666665 27.8542 34.5428 Silicon starvation,12h 67.7265 67.7265 67.7265