Abstract
ABSTRACT The increase of CO2 concentrations and temperatures may affect the plant development and production. This study aimed to evaluate the impact of the increased temperature and carbon dioxide concentration on the development of cowpea cultivars. The experiment was conducted in growth chambers, with control of CO2 and temperature. A completely randomized design was carried out, in a 4 x 3 x 2 factorial arrangement [cultivar x temperature (day/night) x CO2], with three replicates. The duration of the cowpea vegetative and reproductive phases was evaluated and, at the end of the experiment, the number of pods per plant, number of grains per pod, seed weight, shoot fresh and dry matter weight were quantified. Temperature affects the development of cowpea cultivars, and the temperatures of 29 ºC (day)/23 ºC (night) lead to a higher seed weight. The increase of CO2 leads to a higher number of pods and seeds and seed weight. The BRS Tapaihum cultivar presented the highest number of pods and seeds and seed weight. In addition, the temperatures of 32 ºC (day)/29 ºC (night) lead to a greater flower abortion in the BRS Pujante and BRS Tapaihum cultivars.
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Claims 6
Claim · model-written summary
Temperature affected development of cowpea cultivars.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- Temperaturee0
- Outcome
- developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Temperature affects the development of cowpea cultivars”
Claim · model-written summary
Day and night temperatures of 29 and 23 ºC gave higher cowpea seed weight.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- 29 ºC (day)/23 ºC (night)e0
- Outcome
- seed weighte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the temperatures of 29 ºC (day)/23 ºC (night) lead to a higher seed weight”
t0“Cowpea”
Claim · model-written summary
Increased carbon dioxide raised cowpea pod and seed numbers and seed weight.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- increase of CO2e0
- Outcome
- number of pods and seeds and seed weighte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase of CO2 leads to a higher number of pods and seeds and seed weight.”
t0“Cowpea”
Claim · model-written summary
BRS Tapaihum had the highest number of pods and seeds and seed weight.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- BRS Tapaihume0
- Outcome
- number of pods and seeds and seed weighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The BRS Tapaihum cultivar presented the highest number of pods and seeds and seed weight.”
t0“Cowpea”
Claim · model-written summary
High day and night temperatures increased flower abortion in BRS Pujante.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- BRS Pujantee0
- Treatment
- 32 ºC (day)/29 ºC (night)e0
- Outcome
- flower abortione0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the temperatures of 32 ºC (day)/29 ºC (night) lead to a greater flower abortion in the BRS Pujante and BRS Tapaihum cultivars.”
t0“Cowpea”
Claim · model-written summary
High day and night temperatures increased flower abortion in BRS Tapaihum.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- BRS Tapaihume0
- Treatment
- 32 ºC (day)/29 ºC (night)e0
- Outcome
- flower abortione0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the temperatures of 32 ºC (day)/29 ºC (night) lead to a greater flower abortion in the BRS Pujante and BRS Tapaihum cultivars.”
t0“Cowpea”
The same questions in other papers
co2 · yield · Vigna unguiculata (cowpea)Results agree
3 papers in the same direction as this paper
- positive
- 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.