Abstract
High temperature and increasing atmospheric CO2 are debatable issues under climate variability and of major concern for agricultural productivity. Field experiments were conducted with two chickpea (Cicer arietinum L.) genotypes, viz. Pusa 1103 (desi) and Pusa 1105 (kabuli) to examine the role of elevated CO2 (570±86 µmol/mol) and high temperature (5.93±0.22ºC above ambient) on yield and biomass using Open top chambers and temperature tunnel respectively. Elevated CO2 enhanced the grain yield and biomass of both the chickpea genotypes by 34-47 and 39-55 percent respectively while, high temperature exposure reduced the yield of both the genotypes by 19-30 percent. Among genotypes, counter effect of CO2 to high temperature is more prominent in desi compared to kabuli which was attributed with more partitioning of assimilates toward pods in desi. While in kabuli genotypes the biomass partitioning was more towards vegetative plant parts attributing enhanced biomass. Study concludes that elevated CO2 could ameliorate the reductions in yield under high temperature by more dry matter partitioning towards pods instead of temperature induced partitioning towards vegetative plant parts.
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Claims 7
Claim · model-written summary
Elevated CO2 raised grain yield of both chickpea genotypes by 34–47 percent.
- Taxon
- chickpea
Cicer arietinume0 - Treatment
- Elevated CO2e0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Value
- 34-47e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 enhanced the grain yield and biomass of both the chickpea genotypes by 34-47 and 39-55 percent respectively”
Claim · model-written summary
Elevated CO2 raised biomass of both chickpea genotypes by 39–55 percent.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- Elevated CO2e0
- Outcome
- biomasse0
- Direction
- enhancede0
- Value
- 39-55 percente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 enhanced the grain yield and biomass of both the chickpea genotypes by 34-47 and 39-55 percent respectively”
Claim · model-written summary
High temperature lowered yield of both chickpea genotypes by 19–30 percent.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- high temperature exposuree0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 19-30 percente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“high temperature exposure reduced the yield of both the genotypes by 19-30 percent”
Claim · model-written summary
The counter effect of CO2 against high temperature was more prominent in desi than kabuli chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Material
- desie0
- Outcome
- counter effect of CO2 to high temperaturee0
- Direction
- more prominente0
- Comparator
- kabulie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“counter effect of CO2 to high temperature is more prominent in desi compared to kabuli”
Claim · model-written summary
Desi partitioned more assimilates toward pods.
- Taxon
- chickpeaCicer arietinumt0
- Material
- desie0
- Organ / stage
- podse0
- Outcome
- partitioning of assimilates toward podse0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“more partitioning of assimilates toward pods in desi”
Claim · model-written summary
Kabuli partitioned more biomass toward vegetative plant parts.
- Taxon
- chickpeaCicer arietinumt0
- Material
- kabulie0
- Organ / stage
- vegetative plant partse0
- Outcome
- biomass partitioninge0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“in kabuli genotypes the biomass partitioning was more towards vegetative plant parts attributing enhanced biomass”
Claim · model-written summary
The authors concluded that elevated CO2 could ameliorate heat induced yield reductions through greater dry matter partitioning to pods.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- elevated CO2e0
- Outcome
- reductions in yield under high temperaturee0
- Qualifier
- more dry matter partitioning towards podse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“elevated CO2 could ameliorate the reductions in yield under high temperature by more dry matter partitioning towards pods”
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