Abstract
Changes in quality of host plants under elevated CO2 (eCO2) conditions likely in future can affect the survival, growth and development, and population dynamics of insect herbivores. The present study aimed to examine the growth and development of leaf feeding Spodoptera litura (Fabricius) (Noctuidae: Lepidoptera) reared on groundnut (Arachis hypogaea L.) grown under elevated CO2 condition in open top chambers at Main Agricultural Research Station (MARS), University of Agricultural Sciences, Raichur, Karnataka, India. Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to nitrogen and higher phenols and tannins observed in the groundnut foliage grown under elevated CO2 levels. This alteration in food quality significantly affected the growth parameters of S. litura in the form of increased food consumption, gain in larval weight and more faecal matter production due to extended larval duration, pupal duration. This resulted in reduced fecundity, particularly in the population raised under elevated CO2 conditions compared to ambient condition. Further physiological parameters were recorded revealed increased approximate digestibility and relative consumption rate by the larva under elevated CO2 condition coupled with reduced efficiency of conversion of ingested food and digested food. As a result, the relative growth rate was decreased under elevated CO2 conditions. In a nutshell, it can be concluded that elevated CO2 concentrations altered the quality of groundnut foliage and has the negative effect on the growth and development of S. litura.
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Claims 9
Claim · model-written summary
Elevated CO2 lowered nitrogen in groundnut foliage.
- Taxon
- groundnut
Arachis hypogaeae0 - Organ / stage
- foliagee0
- Treatment
- elevated CO2 levelse0
- Outcome
- leaf nitrogene0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to nitrogen and higher phenols and tannins observed in the groundnut foliage grown under elevated CO2 levels.”
Claim · model-written summary
Elevated CO2 increased carbon and the carbon-to-nitrogen proportion in groundnut foliage.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- elevated CO2 levelse0
- Outcome
- carbon, higher relative proportion of carbon to nitrogene0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to nitrogen and higher phenols and tannins observed in the groundnut foliage grown under elevated CO2 levels.”
Claim · model-written summary
Elevated CO2 increased phenols and tannins in groundnut foliage.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- elevated CO2 levelse0
- Outcome
- phenols and tanninse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to nitrogen and higher phenols and tannins observed in the groundnut foliage grown under elevated CO2 levels.”
Claim · model-written summary
Altered groundnut foliage quality under elevated CO2 increased food consumption, larval weight gain and faecal production in S. litura.
- Interactor
- S. litura
Spodoptera liturae0pest - Outcome
- food consumption, gain in larval weight and more faecal matter productione0
- Direction
- increasede0
- Qualifier
- alteration in food qualitye0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This alteration in food quality significantly affected the growth parameters of S. litura in the form of increased food consumption, gain in larval weight and more faecal matter production due to extended larval duration, pupal duration.”
Claim · model-written summary
Larval and pupal duration of S. litura were extended with altered groundnut foliage quality.
- Interactor
- S. lituraSpodoptera liturae0pest
- Outcome
- larval duration, pupal duratione0
- Direction
- extendede0
- Qualifier
- alteration in food qualitye0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This alteration in food quality significantly affected the growth parameters of S. litura in the form of increased food consumption, gain in larval weight and more faecal matter production due to extended larval duration, pupal duration.”
Claim · model-written summary
S. litura fecundity was reduced under elevated CO2 compared with ambient conditions.
Not reportedTaxonInteractor
Verbatim
e0“This resulted in reduced fecundity, particularly in the population raised under elevated CO2 conditions compared to ambient condition.”
Claim · model-written summary
Elevated CO2 increased approximate digestibility and relative consumption rate in S. litura larvae.
- Treatment
- elevated CO2 conditione0
- Outcome
- approximate digestibility and relative consumption ratee0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“increased approximate digestibility and relative consumption rate by the larva under elevated CO2 condition coupled with reduced efficiency of conversion of ingested food and digested food.”
Claim · model-written summary
Elevated CO2 reduced S. litura efficiency of conversion of ingested and digested food.
- Treatment
- elevated CO2 conditione0
- Outcome
- efficiency of conversion of ingested food and digested foode0
- Direction
- reducede0
Not reportedTaxonComparator
Verbatim
e0“increased approximate digestibility and relative consumption rate by the larva under elevated CO2 condition coupled with reduced efficiency of conversion of ingested food and digested food.”
Claim · model-written summary
Relative growth rate decreased under elevated CO2.
Not reportedTaxonComparator
Verbatim
e0“the relative growth rate was decreased under elevated CO2 conditions.”
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See all 12 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.