Abstract
An increase in atmospheric CO2 concentration and temperature, together with other climate change factors could greatly affects agricultural productivity as well as quality of produce. Understanding the change in atmospheric CO2 and temperature in conjunction with the ongoing global change is crucial to prepare for mitigation and any adoption for future agricultural production. Our study was mainly concentrated on response of maize and groundnut genotypes to climate change with respect to quality aspects. An experiment was conducted in Open Top Chambers (OTC’s) at the Main Agricultural Research Station, University of Agricultural Science, Raichur. Two maize genotypes i.e. CP-818 and Hema and groundnut genotypes TMV-2 and K-9 were evaluated for two CO2 levels (ambient CO2 and elevated CO2 @ 550 ppm) along with combination of temperature (ambient temperature and elevated temperature @ 2 °C) for kharif and rabi seasons of 2015. Results of the experiments were analysed through two factor-CRD design with 5 replications. Maize quality parameters like oil, protein and starch content were analysed by NIR Transmission at UAS, Raichur. Similarly for groundnut oil, protein content and fatty acid profile were analysed at IIOR, Hyderabad. The results showed that under elevated CO2 @ 550 ppm condition, protein content in maize and groundnut was 8.1 and 19.8 per cent where as under ambient CO2 condition it was 9.8 and 22.6 per cent. Carbon compounds (starch, oil content and fatty acids) increased under elevated CO2 conditions. Oil content under elevated CO2 condition of maize and groundnut was 6.7 and 49.4 per cent, whereas under ambient condition it was 6.6 and 45.5 per cent. The elevated temperature had negative effect on quality aspects (decreased protein, oil and fatty acid composition) of the crops.
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Claims 9
Claim · model-written summary
Elevated CO2 lowered maize protein content to 8.1 per cent from 9.8 per cent under ambient CO2.
- Treatment
- elevated CO2 @ 550 ppme0
- Outcome
- protein contente0
- Value
- 8.1e0
- Qualifier
- 9.8e0
- Comparator
- ambient CO2 conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under elevated CO2 @ 550 ppm condition, protein content in maize and groundnut was 8.1 and 19.8 per cent where as under ambient CO2 condition it was 9.8 and 22.6 per cent.”
Claim · model-written summary
Elevated CO2 lowered groundnut protein content to 19.8 per cent from 22.6 per cent under ambient CO2.
- Taxon
- groundnut
Arachis hypogaeae0 - Treatment
- elevated CO2 @ 550 ppme0
- Outcome
- protein contente0
- Value
- 19.8e0
- Qualifier
- 22.6e0
- Comparator
- ambient CO2 conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under elevated CO2 @ 550 ppm condition, protein content in maize and groundnut was 8.1 and 19.8 per cent where as under ambient CO2 condition it was 9.8 and 22.6 per cent.”
Claim · model-written summary
Starch increased under elevated CO2.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbon compounds (starch, oil content and fatty acids) increased under elevated CO2 conditions.”
t0“maize”
Claim · model-written summary
Fatty acids increased under elevated CO2.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- elevated CO2 conditionse0
- Outcome
- fatty acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbon compounds (starch, oil content and fatty acids) increased under elevated CO2 conditions.”
t0“groundnut”
Claim · model-written summary
Elevated CO2 increased maize oil content to 6.7 per cent from 6.6 per cent.
- Treatment
- elevated CO2 conditione0
- Outcome
- Oil contente0
- Value
- 6.7e0
- Qualifier
- 6.6e0
- Comparator
- ambient conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil content under elevated CO2 condition of maize and groundnut was 6.7 and 49.4 per cent, whereas under ambient condition it was 6.6 and 45.5 per cent.”
Claim · model-written summary
Elevated CO2 increased groundnut oil content to 49.4 per cent from 45.5 per cent.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- elevated CO2 conditione0
- Outcome
- Oil contente0
- Value
- 49.4e0
- Qualifier
- 45.5e0
- Comparator
- ambient conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil content under elevated CO2 condition of maize and groundnut was 6.7 and 49.4 per cent, whereas under ambient condition it was 6.6 and 45.5 per cent.”
Claim · model-written summary
Elevated temperature decreased crop protein.
- Taxon
- maize and groundnutArachis hypogaea
Zea mayst0 - Treatment
- elevated temperaturee0
- Outcome
- proteine0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The elevated temperature had negative effect on quality aspects (decreased protein, oil and fatty acid composition) of the crops.”
t0“maize and groundnut”
Claim · model-written summary
Elevated temperature decreased crop oil.
- Taxon
- maize and groundnutArachis hypogaeaZea mayst0
- Treatment
- elevated temperaturee0
- Outcome
- oile0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The elevated temperature had negative effect on quality aspects (decreased protein, oil and fatty acid composition) of the crops.”
t0“maize and groundnut”
Claim · model-written summary
Elevated temperature decreased crop fatty acid composition.
- Taxon
- maize and groundnutArachis hypogaeaZea mayst0
- Treatment
- elevated temperaturee0
- Outcome
- fatty acid compositione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The elevated temperature had negative effect on quality aspects (decreased protein, oil and fatty acid composition) of the crops.”
t0“maize and groundnut”
The same questions in other papers
heat · quality: oil · Zea mays (maize)Positive and negative results
1 in the opposite direction
- positive
heat · quality: protein · Arachis hypogaea (peanut)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
co2 · quality: protein · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
heat · quality: protein · Zea mays (maize)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 papers →heat · quality: oil · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- no effect
co2 · quality: protein · Arachis hypogaea (peanut)Results agree
2 papers in the same direction as this paper
- no effect
- negative
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.