Abstract
Attached soybean leaves in a closed system were fed high specific activity 14 CO 2 at four CO 2 compensation points (30, 53, 110, 204 μl/l CO 2 ) which were produced by different O 2 concentrations (10, 21, 44, 80% O 2 ). Rates of CO 2 uptake and evolution were measured simultaneously using an infrared CO 2 gas analyzer and a Geiger tube. The CO 2 compensation point was proportional to O 2 concentration but did not change for the two light intensities used. The rates of CO 2 exchange at the compensation point did increase with light intensity. These rates of CO 2 exchange also increased with the increasing CO 2 concentration of the compensation point (for increasing O 2 concentrations) but tended to saturate for compensation points greater than 110 μl/l CO 2 .
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
The CO2 compensation point was proportional to oxygen concentration.
- Taxon
- soybean
Glycine maxe1 - Compound
- O 2e0
- Outcome
- CO 2 compensation pointe0
- Direction
- proportionale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CO 2 compensation point was proportional to O 2 concentration”
e1“soybean leaves”
Claim · model-written summary
The CO2 compensation point did not change across the two light intensities.
- Taxon
- soybeanGlycine maxe1
- Treatment
- two light intensitiese0
- Outcome
- CO 2 compensation pointe0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CO 2 compensation point was proportional to O 2 concentration but did not change for the two light intensities used”
e1“soybean leaves”
Claim · model-written summary
CO2 exchange rates at compensation increased with light intensity.
- Taxon
- soybeanGlycine maxe1
- Treatment
- light intensitye0
- Outcome
- rates of CO 2 exchangee0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rates of CO 2 exchange at the compensation point did increase with light intensity”
e1“soybean leaves”
Claim · model-written summary
CO2 exchange rates increased with compensation-point CO2 concentration.
- Taxon
- soybeanGlycine maxe1
- Compound
- CO 2e0
- Outcome
- rates of CO 2 exchangee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These rates of CO 2 exchange also increased with the increasing CO 2 concentration of the compensation point”
e1“soybean leaves”
Claim · model-written summary
CO2 exchange rates tended toward saturation above a 110 μl/l CO2 compensation point.
- Taxon
- soybeanGlycine maxe1
- Outcome
- rates of CO 2 exchangee0
- Direction
- tended to saturatee0
- Value
- 110 μl/l CO 2e0
- Setting
- compensation pointse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These rates of CO 2 exchange also increased with the increasing CO 2 concentration of the compensation point (for increasing O 2 concentrations) but tended to saturate for compensation points greater than 110 μl/l CO 2”
e1“soybean leaves”