Abstract
ABSTRACT A selection of winter barley genotypes was investigated for their responses to water shortage under different CO 2 concentrations in a greenhouse. The experiment was conducted in a 2*2 factorial design. Plants were grown either with optimum water supply or simulated drought in the BBCH 59 stage at current (~400 ppm CO 2 ) or elevated CO 2 concentrations (~700 ppm CO 2 ) with identical climatic conditions. Yield parameters (aboveground biomass and grain yield), water use and water use efficiency (WUE; kg m −3 ) were calculated. Drought stress induced a decrease in yield production, and the rate of yield reduction was higher at 700 ppm CO 2 concentration. On average for the genotypes studied, water withdrawal resulted in a 20.01% and 22.0% reduction in grain yield at 400 ppm and 700 ppm CO 2 levels, respectively. Under optimum irrigation, BCC570, BCC607, Ketos, BCC887, HOR12808 and Kaskade showed significant positive CO 2 responses. Under a limited water supply, positive CO 2 reactions were only observed for BCC570, Ketos and BCC1585 genotypes; however, a significant positive CO 2 reaction regarding the yield production was observed for Panda. The carbon dioxide enrichment significantly increased water use efficiency under optimum watering conditions by 24.57% and drought‐stressed conditions by 21.72%. However, the water shortage significantly increased water use efficiency under both 400 ppm (10.48%) and 700 ppm (12.36%) CO 2 .
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Water withdrawal reduced grain yield by 20.01% at 400 ppm CO2.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- water withdrawale0
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 20.01%e0
- Qualifier
- 400 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“water withdrawal resulted in a 20.01% and 22.0% reduction in grain yield at 400 ppm and 700 ppm CO 2 levels, respectively.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
Water withdrawal reduced grain yield by 22.0% at 700 ppm CO2.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- water withdrawale0
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 22.0%e0
- Qualifier
- 700 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water withdrawal resulted in a 20.01% and 22.0% reduction in grain yield at 400 ppm and 700 ppm CO 2 levels, respectively.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
At optimum irrigation, BCC570, BCC607 and Ketos showed significant positive CO2 responses.
- Taxon
- BarleyHordeum vulgaret0
- Material
- BCC570, BCC607, Ketose0
- Treatment
- CO 2e0
- Outcome
- CO 2 responsese0
- Direction
- positivee0
- Qualifier
- Under optimum irrigatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under optimum irrigation, BCC570, BCC607, Ketos, BCC887, HOR12808 and Kaskade showed significant positive CO 2 responses.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
At optimum irrigation, BCC887, HOR12808 and Kaskade showed significant positive CO2 responses.
- Taxon
- BarleyHordeum vulgaret0
- Material
- BCC887, HOR12808 and Kaskadee0
- Treatment
- CO 2e0
- Outcome
- CO 2 responsese0
- Direction
- positivee0
- Qualifier
- Under optimum irrigatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under optimum irrigation, BCC570, BCC607, Ketos, BCC887, HOR12808 and Kaskade showed significant positive CO 2 responses.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
With limited water, BCC570, Ketos and BCC1585 showed positive CO2 responses.
- Taxon
- BarleyHordeum vulgaret0
- Material
- BCC570, Ketos and BCC1585e0
- Treatment
- CO 2e0
- Outcome
- CO 2 reactionse0
- Direction
- positivee0
- Qualifier
- Under a limited water supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under a limited water supply, positive CO 2 reactions were only observed for BCC570, Ketos and BCC1585 genotypes”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
With limited water, Panda showed a significant positive CO2 yield response.
- Taxon
- BarleyHordeum vulgaret0
- Material
- Pandae0
- Treatment
- CO 2e0
- Outcome
- yield productione0
- Direction
- positivee0
- Qualifier
- Under a limited water supplye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant positive CO 2 reaction regarding the yield production was observed for Panda.”
e1“Under a limited water supply”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
CO2 enrichment raised water use efficiency by 24.57% under optimum watering.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- carbon dioxide enrichmente0
- Outcome
- water use efficiencye0
- Direction
- increasede0
- Value
- 24.57%e0
- Qualifier
- optimum watering conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The carbon dioxide enrichment significantly increased water use efficiency under optimum watering conditions by 24.57% and drought‐stressed conditions by 21.72%.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
CO2 enrichment raised water use efficiency by 21.72% under drought stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- carbon dioxide enrichmente0
- Outcome
- water use efficiencye0
- Direction
- increasede0
- Value
- 21.72%e0
- Qualifier
- drought‐stressed conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The carbon dioxide enrichment significantly increased water use efficiency under optimum watering conditions by 24.57% and drought‐stressed conditions by 21.72%.”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
Water shortage raised water use efficiency by 10.48% at 400 ppm CO2.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- water shortagee0
- Outcome
- water use efficiencye0
- Direction
- increasede0
- Value
- 10.48%e0
- Qualifier
- 400 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the water shortage significantly increased water use efficiency under both 400 ppm (10.48%) and 700 ppm (12.36%) CO 2 .”
t0“Barley ( Hordeum vulgare L.) Genotypes”
Claim · model-written summary
Water shortage raised water use efficiency by 12.36% at 700 ppm CO2.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- water shortagee0
- Outcome
- water use efficiencye0
- Direction
- increasede0
- Value
- 12.36%e0
- Qualifier
- 700 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the water shortage significantly increased water use efficiency under both 400 ppm (10.48%) and 700 ppm (12.36%) CO 2 .”
t0“Barley ( Hordeum vulgare L.) Genotypes”
The same questions in other papers
drought · physiology: water · Hordeum vulgare (barley)Results differ
8 papers in the same direction as this paper · 28 in the opposite direction
- negative
- negative
- negative
33 papers more in this group
See all 37 papers →co2 · yield · Hordeum vulgare (barley)Positive and negative results
19 papers in the same direction as this paper · 5 in the opposite direction
- positive
- no effect
- negative
21 papers more in this group
See all 25 papers →co2 · physiology: water · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- 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.