Abstract
Plants of Echinochloa crus-galli from Québec and Mississippi were grown under two thermoperiods (28 degrees C/22 degrees C, 21 degrees C/15 degrees C) and two atmospheric CO(2) concentrations (350 and 675 microliters per liter) to examine possible differential responses of northern and southern populations of this C(4) grass species. Translocation was monitored using radioactive tracing with short-lived (11)C. CO(2) enrichment induced a decrease in the size of the export pool in plants of both populations. Other parameters did not strongly respond to elevated CO(2). Low temperature reduced translocation drastically for plants from Mississippi in normal CO(2) concentration, but this reduction was ameliorated at high CO(2). Overall, plants from Québec had a higher (11)C activity in leaf phloem and a higher percentage of (11)C exported, whereas these northern plants had lower turnover time and smaller pool size than plants from the southern population.
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 8
Claim · model-written summary
CO2 enrichment decreased export pool size in both populations.
- Taxon
- Echinochloa crus-galli
Echinochloa crus-gallit0 - Treatment
- CO(2) enrichmente0
- Outcome
- size of the export poole0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO(2) enrichment induced a decrease in the size of the export pool in plants of both populations.”
t0“Echinochloa crus-galli”
Claim · model-written summary
Other parameters responded weakly to elevated CO2.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Treatment
- elevated CO(2)e0
- Outcome
- Other parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Other parameters did not strongly respond to elevated CO(2).”
t0“Echinochloa crus-galli”
Claim · model-written summary
Low temperature drastically reduced translocation in Mississippi plants under normal CO2.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Treatment
- Low temperaturee0
- Outcome
- translocatione0
- Direction
- reducede0
- Qualifier
- normal CO(2) concentratione0
- Setting
- Mississippie0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low temperature reduced translocation drastically for plants from Mississippi in normal CO(2) concentration”
t0“Echinochloa crus-galli”
Claim · model-written summary
High CO2 ameliorated the low-temperature reduction in translocation.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Treatment
- high CO(2)e0
- Outcome
- reductione0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but this reduction was ameliorated at high CO(2).”
t0“Echinochloa crus-galli”
Claim · model-written summary
Québec plants had higher 11C activity in leaf phloem.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Outcome
- (11)C activity in leaf phloeme0
- Direction
- highere0
- Setting
- Québece0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants from Québec had a higher (11)C activity in leaf phloem”
t0“Echinochloa crus-galli”
Claim · model-written summary
Québec plants exported a higher percentage of 11C.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Outcome
- percentage of (11)C exportede0
- Direction
- highere0
- Setting
- Québece0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants from Québec had a higher (11)C activity in leaf phloem and a higher percentage of (11)C exported”
t0“Echinochloa crus-galli”
Claim · model-written summary
Québec plants had lower turnover time.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Outcome
- turnover timee0
- Direction
- lowere0
- Comparator
- plants from the southern populatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these northern plants had lower turnover time and smaller pool size than plants from the southern population.”
t0“Echinochloa crus-galli”
Claim · model-written summary
Québec plants had smaller pool size than southern plants.
- Taxon
- Echinochloa crus-galliEchinochloa crus-gallit0
- Outcome
- pool sizee0
- Direction
- smallere0
- Comparator
- plants from the southern populatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these northern plants had lower turnover time and smaller pool size than plants from the southern population.”
t0“Echinochloa crus-galli”
The same questions in other papers
cold · nutrient: content · Echinochloa crus-galli (barnyard grass)Results differ
1 paper in the same direction as this paper
- negative
co2 · growth · Echinochloa crus-galli (barnyard grass)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.