Abstract
The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied. The plants were infested with ACB and exposed to ambient and elevated (550 and 750 μl/l) CO2. E-CO2 increased the plant height and kernel number per ear. The plants had lower nitrogen contents and higher TNC: N ratios under E-CO2 than at ambient CO2. The response of plant height to E-CO2 was significantly dampened in plants with ACB infestation. However, the weight gain of the survivors declined in plants grown under E-CO2. Moreover, the plant damage caused by ACB was not different among the treatments. Overwintering larvae developed under E-CO2 had a lower supercooling point than those developed under ambient CO2. The results indicated that there was a positive effect of E-CO2 on the accumulation of maize biomass, i.e., the "air-fertilizer" effect, which led to a nutritional deficiency in the plants. The fitness-related parameters of ACB were adversely affected by the CO2-mediated decreased in plant nutritional quality, and ACB might alter its food consumption to compensate for these changes. Larval damage to maize under E-CO2 appears to be offset by this "air-fertilizer" effect, with reductions in larval fitness.
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Claims 9
Claim · model-written summary
Elevated CO2 increased plant height and kernel number per ear of maize relative to ambient CO2.
- Treatment
- E-CO2e2
- Outcome
- plant height and kernel number per eare2
- Direction
- increasede2
- Comparator
- ambiente1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e1“The plants were infested with ACB and exposed to ambient and elevated (550 and 750 μl/l) CO2”
e2“E-CO2 increased the plant height and kernel number per ear”
Claim · model-written summary
Maize plants had lower nitrogen contents under elevated CO2 than at ambient CO2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e3“The plants had lower nitrogen contents and higher TNC: N ratios under E-CO2 than at ambient CO2”
Claim · model-written summary
Maize plants had higher TNC:N ratios under elevated CO2 than at ambient CO2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e3“The plants had lower nitrogen contents and higher TNC: N ratios under E-CO2 than at ambient CO2”
Claim · model-written summary
The plant height response to elevated CO2 was significantly dampened in maize infested with Ostrinia furnacalis.
- Treatment
- E-CO2e4
- Interactor
- Ostrinia furnacalis
Ostrinia furnacalise0pest - Outcome
- response of plant heighte4
- Direction
- dampenede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e4“The response of plant height to E-CO2 was significantly dampened in plants with ACB infestation”
Claim · model-written summary
Weight gain of surviving Ostrinia furnacalis larvae declined in maize grown under elevated CO2 relative to ambient CO2.
- Treatment
- E-CO2e5
- Interactor
- Ostrinia furnacalisOstrinia furnacalise0pest
- Outcome
- weight gain of the survivorse5
- Direction
- declinede5
- Comparator
- ambiente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e1“The plants were infested with ACB and exposed to ambient and elevated (550 and 750 μl/l) CO2”
e5“However, the weight gain of the survivors declined in plants grown under E-CO2”
Claim · model-written summary
Plant damage caused by Ostrinia furnacalis was not different among elevated and ambient CO2 treatments.
- Treatment
- E-CO2e0
- Interactor
- Ostrinia furnacalisOstrinia furnacalise0pest
- Outcome
- plant damage caused by ACBe6
- Direction
- not differente6
- Comparator
- ambiente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e1“The plants were infested with ACB and exposed to ambient and elevated (550 and 750 μl/l) CO2”
e6“Moreover, the plant damage caused by ACB was not different among the treatments”
Claim · model-written summary
Overwintering larvae developed under elevated CO2 had a lower supercooling point than larvae under ambient CO2.
- Organ / stage
- Overwintering larvaee7
- Treatment
- E-CO2e7
- Outcome
- supercooling pointe7
- Direction
- lowere7
- Comparator
- ambient CO2e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e7“Overwintering larvae developed under E-CO2 had a lower supercooling point than those developed under ambient CO2”
Claim · model-written summary
Elevated CO2 had a positive effect on the accumulation of maize biomass.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There was a positive effect of E-CO2 on the accumulation of maize biomass”
Claim · model-written summary
Fitness-related parameters of Ostrinia furnacalis were adversely affected by the CO2-mediated decrease in maize nutritional quality.
- Interactor
- Ostrinia furnacalisOstrinia furnacalise0pest
- Outcome
- fitness-related parameters of ACBe1
- Qualifier
- CO2-mediated decreased in plant nutritional qualitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of elevated CO2 (E-CO2) on maize and Asian corn borer (ACB), Ostrinia furnacalis, in open-top chambers were studied”
e1“The fitness-related parameters of ACB were adversely affected by the CO2-mediated decreased in plant nutritional quality”
The same questions in other papers
co2 · growth · Zea mays (maize)Results differ
34 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative
- negative
- no effect
- no effect
54 papers more in this group
See all 58 papers →co2 · Ostrinia furnacalis · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- 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.