Abstract
Development and the components of exudates and bleaching sap in the root of cucumber seedlings were examined to elucidate the response of the rhizosphere to CO2 enrichment treatments(one time in the morning and twice in the morning and afternoon).Results showed that:CO2 enrichment significantly promoted root development shown by higher fresh mass,and increased root secretion of sugars,amino acids,organic acids and phenolic acids.However,the root exudates per unit of root fresh mass did not increase so much,unchanged or even decreased in cases.This indicated that the increase in root exudates per plant was mainly attributed to the increase in root growth.CO2 enrichment improved nutrient uptake,which was indicated by increases in concentrations of minerals and ZT in the bleaching sap.However,the concentrations of GA,ABA and IAA decreased.Twice enrichments a day in the morning and afternoon proved more effective than the morning enrichment only.In conclusion,CO2 enrichment resulted in improvements in the root development,metabolic activities and the consequent shoot growth in cucumber seedlings.
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 9
Claim · model-written summary
CO2 enrichment significantly increased root fresh mass.
- Taxon
- cucumber seedlings
Cucumis sativust0 - Treatment
- CO2 enrichmente0
- Outcome
- fresh masse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 enrichment significantly promoted root development shown by higher fresh mass”
t0“cucumber seedlings”
Claim · model-written summary
CO2 enrichment increased root secretion of sugars, amino acids, organic acids and phenolic acids.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- CO2 enrichmente1
- Outcome
- root secretion of sugars,amino acids,organic acids and phenolic acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and increased root secretion of sugars,amino acids,organic acids and phenolic acids.”
t0“cucumber seedlings”
e1“CO2 enrichment significantly promoted root development shown by higher fresh mass”
Claim · model-written summary
Exudates per unit root fresh mass changed little, remained unchanged or decreased.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- CO2 enrichmente1
- Outcome
- root exudates per unit of root fresh masse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root exudates per unit of root fresh mass did not increase so much,unchanged or even decreased in cases.”
t0“cucumber seedlings”
e1“CO2 enrichment significantly promoted root development shown by higher fresh mass”
Claim · model-written summary
Higher per-plant exudation was attributed mainly to increased root growth.
- Taxon
- cucumber seedlingsCucumis sativust0
- Organ / stage
- roote0
- Outcome
- root exudates per plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in root exudates per plant was mainly attributed to the increase in root growth.”
t0“cucumber seedlings”
Claim · model-written summary
CO2 enrichment increased mineral concentrations in bleeding sap.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- CO2 enrichmente0
- Outcome
- concentrations of mineralse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 enrichment improved nutrient uptake,which was indicated by increases in concentrations of minerals and ZT in the bleaching sap.”
t0“cucumber seedlings”
Claim · model-written summary
CO2 enrichment increased ZT concentration in bleeding sap.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- CO2 enrichmente0
- Outcome
- ZT in the bleaching sape0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 enrichment improved nutrient uptake,which was indicated by increases in concentrations of minerals and ZT in the bleaching sap.”
t0“cucumber seedlings”
Claim · model-written summary
CO2 enrichment decreased GA, ABA and IAA concentrations.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- CO2 enrichmente1
- Outcome
- concentrations of GA,ABA and IAAe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However,the concentrations of GA,ABA and IAA decreased.”
t0“cucumber seedlings”
e1“CO2 enrichment significantly promoted root development shown by higher fresh mass”
Claim · model-written summary
Twice daily enrichment was more effective than morning-only enrichment.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- Twice enrichments a day in the morning and afternoone0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- the morning enrichment onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twice enrichments a day in the morning and afternoon proved more effective than the morning enrichment only.”
t0“cucumber seedlings”
Claim · model-written summary
CO2 enrichment improved shoot growth.
- Taxon
- cucumber seedlingsCucumis sativuse0
- Treatment
- CO2 enrichmente0
- Outcome
- shoot growthe0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 enrichment resulted in improvements in the root development,metabolic activities and the consequent shoot growth in cucumber seedlings.”
The same questions in other papers
co2 · growth · Cucumis sativus (cucumber)Positive and negative results
17 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
16 papers more in this group
See all 20 papers →co2 · quality: phytochemicals · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- positive
co2 · crop injury · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.