condition mean min max 12pM Fe,Midday 16.8261 16.8261 16.8261 12pM Fe,Midnight 19.582349999999998 18.5895 20.5752 58pM Fe,Midday 16.361 16.361 16.361 58pM Fe,Midnight 12.97412857142857 0.0 15.9424 233pM Fe,Midnight 13.3738 12.8375 13.703 1160pM Fe,Midday 10.552568571428571 9.52327 11.8163 1160pM Fe,Midnight 3.672345 1.61977 8.34229 High carbon,Dark 25.283266 5.56811 54.8228 High carbon,Light 15.949131461538462 0.518759 56.6044 Low carbon,Dark 13.8211 13.8211 13.8211 Phloroglucinol 8.225506666666666 6.19565 10.8338 Silicon starvation,12h 19.4627 19.4627 19.4627