condition mean min max 12pM Fe,Midday 231.891 231.891 231.891 12pM Fe,Midnight 202.882 200.069 205.695 58pM Fe,Midday 176.109 176.109 176.109 58pM Fe,Midnight 222.71085714285715 205.613 262.529 233pM Fe,Midnight 180.122 171.09 188.446 1160pM Fe,Midday 155.91085714285714 145.477 170.493 1160pM Fe,Midnight 169.62358333333333 137.334 190.587 High carbon,Dark 200.64353333333332 119.278 253.087 High carbon,Light 220.322 146.416 316.759 Low carbon,Dark 280.811 280.811 280.811 Phloroglucinol 158.036 133.046 178.114 Silicon starvation,12h 190.975 190.975 190.975