CO2 Response Curve:

CO2 response graph w300

Light Response Curve

Light response graph w300

Humidity Response Curve

Humidity response graph w300

Measurements & Applications

Photosynthetic responses to environmental variables such as light, CO2, humidity and temperature can also be measured to examine the underlying biochemical limitations. [More Information]

The LI-6400XT provides a stable platform for a variety of applications. Designed for publication-quality research, the measurements, flexibility and versatility of the LI-6400XT system makes it ideal for a wide range of studies from broad leaf gas exchange to insect respiration. LI-COR's chambers for the LI-6400XT are carefully designed and constructed to provide the highest accuracy and precision with minimal environmental disturbance. [More Information]

Table of midday leaf-level gas exchange and chlorophyll fluorescence measured for biological replicates of experimental-plot grown Zea mays (corn). Gas exchange and fluorescence were measured simultaneously, over the same leaf area.

Obs HHMMSS Species Rep Photo Cond Ci Fm' Fs PhiPS2 Trmmol VpdL Tair Tleaf PARi
1 13:17:07 Maize 1 26.5 0.218 166 545.3 465.1 0.147 4.86 2.13 32.46 31.68 2000
2 13:19:13 Maize 2 26.6 0.216 163 573.9 464.5 0.191 4.92 2.18 32.48 31.84 1999
3 13:23:21 Maize 3 26.7 0.218 164 544.6 463 0.15 4.9 2.15 32.47 31.71 1999
4 13:25:27 Maize 4 26.8 0.221 165 545 464.7 0.147 4.95 2.15 32.47 31.71 2000
5 13:27:34 Maize 5 26.7 0.22 166 545.7 464.3 0.149 4.98 2.17 32.5 31.77 1999
6 13:29:42 Maize 6 26.6 0.246 187 545.1 466.3 0.145 4.77 1.87 32.42 30.56 1999

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