<mods:mods version="3.3" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-3.xsd" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><mods:titleInfo><mods:title>Photosynthesis Under Field Conditions. XA. Assessing Sources and Sinks of Carbon Dioxide in a Corn (Zea mays L.) Crop Using Momentum Balance Approach</mods:title></mods:titleInfo><mods:name type="personal"><mods:namePart type="given">E.R.</mods:namePart><mods:namePart type="family">Lemon</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:name type="personal"><mods:namePart type="given">J.L.</mods:namePart><mods:namePart type="family">Wright</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:abstract>In a previous communication we described a meteorological
method of assessing the vertical distribution of photosynthesis
and respiration activity in a corn crop. The
method, however, is tedious. Here we describe a much
simpler method. Results indicate that all the leaves of
a corn crop appear to follow the same near-linear light
response curve, at least above the compensation point.
Below the compensation point, all leaves evidently respire
very little.</mods:abstract><mods:classification authority="lcc">Corn / maize</mods:classification><mods:classification authority="lcc">Research methodology</mods:classification><mods:classification authority="lcc">Mass Import - autoclassified (may be erroneous)</mods:classification><mods:originInfo><mods:dateIssued encoding="iso8601">1969</mods:dateIssued></mods:originInfo><mods:genre>Article</mods:genre></mods:mods>