e grass species Echinochloa crus-galli.
</p>
<h4 class="subsubheading" id="Format-83"><span>Format<a class="copiable-link" href="#Format-83"> &para;</a></span></h4>

<h4 class="subsubheading" id="Details-21"><span>Details<a class="copiable-link" href="#Details-21"> &para;</a></span></h4>

<p>The CO2 uptake of six plants from Quebec and six plants from Mississippi was
measured at several levels of ambient CO2 concentration. Half the plants of
each type were chilled overnight before the experiment was conduct