Abstract
A field study was carried out during Rabi season of 2015-16 and 2016-17 at Department of Agronomy, CSK HPKV, Palampur, Himachal Pradesh (India) to calibrate the DSSAT-CERES-wheat model for four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907) grown on five different sowing dates (viz., October 20, November 5, November 20, December 5 and December 20) in split plot design with three replications. The objective was to evaluate varietal response and sowing time as adaptive strategies to climate change, along with the effect of irrigation scheduling. Results revealed that delayed sowing either on 5th and 20th December proved a better adaptive strategy to climate change. Similarly, varieties VL-829 and VL-907 were more capable to eliminate the harmful impacts of climate change, compared to other two varieties. The simulation results also elucidated that increasing the frequency of irrigations from one to four nullified the impact of climate change and led to a yield increase ranging from 2.23% to 7.95% for various sowing dates and 4.02-5.00 % for varieties- One extra (total four) irrigation further amplified the positive impact of irrigation by increasing wheat yield by 4.93- 10.88% for sowing dates and 6.88- 7.84% for varieties. However, the positive impact of irrigation declined under projected climate scenarios for the 2050s and 2080s. Ultimately, delayed sowing either of VL-829 and VL-907 varieties up to December 20 and increase in number of irrigations from two (each at 35 and 75 DAS) to five (each at 30, 60, 90, 120 and 145 DAS) appeared as best adaptive strategies for wheat crop of this region. The DSSAT-CSM-CERES model (V4.6) fairly simulated the overall yield comprises of grain and biomass of selected wheat cultivars therefore, it can be well suited for crop yield simulations studies under different sowing environments.
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Claims 10
Claim · model-written summary
The DSSAT-CSM-CERES model fairly simulated the overall wheat yield (grain and biomass).
- Taxon
- wheat
Triticum aestivume0 - Outcome
- overall yielde1
- Qualifier
- fairly simulatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“The DSSAT-CSM-CERES model (V4.6) fairly simulated the overall yield comprises of grain and biomass”
Claim · model-written summary
Delayed sowing on 5 and 20 December was a better adaptive strategy to climate change.
- Taxon
- wheatTriticum aestivume0
- Treatment
- delayed sowinge1
- Outcome
- adaptive strategy to climate changee1
- Direction
- bettere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“Results revealed that delayed sowing either on 5th and 20th December proved a better adaptive strategy to climate change”
Claim · model-written summary
Varieties VL-829 and VL-907 were more capable than the other two varieties to eliminate the harmful impacts of climate change.
- Taxon
- wheatTriticum aestivume0
- Material
- VL-829 and VL-907e2
- Treatment
- varieties VL-829 and VL-907e2
- Outcome
- harmful impacts of climate changee2
- Direction
- more capable to eliminatee2
- Comparator
- other two varietiese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e2“varieties VL-829 and VL-907 were more capable to eliminate the harmful impacts of climate change, compared to other two varieties”
Claim · model-written summary
Increasing irrigations from one to four nullified the impact of climate change on wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- increasing the frequency of irrigations from one to foure1
- Outcome
- impact of climate changee1
- Direction
- nullifiede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“increasing the frequency of irrigations from one to four nullified the impact of climate change”
Claim · model-written summary
Increasing irrigations from one to four gave a yield increase of 2.23% to 7.95% across sowing dates.
- Taxon
- wheatTriticum aestivume0
- Material
- various sowing datese2
- Treatment
- increasing the frequency of irrigations from one to foure1
- Outcome
- yielde2
- Direction
- increasee2
- Value
- 2.23% to 7.95%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“increasing the frequency of irrigations from one to four nullified the impact of climate change”
e2“led to a yield increase ranging from 2.23% to 7.95% for various sowing dates”
Claim · model-written summary
Increasing irrigations from one to four gave a yield increase of 4.02-5.00 % for varieties.
- Taxon
- wheatTriticum aestivume0
- Material
- varietiese3
- Treatment
- increasing the frequency of irrigations from one to foure1
- Outcome
- yielde2
- Direction
- increasee2
- Value
- 4.02-5.00 %e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“increasing the frequency of irrigations from one to four nullified the impact of climate change”
e2“led to a yield increase ranging from 2.23% to 7.95% for various sowing dates”
e3“4.02-5.00 % for varieties”
Claim · model-written summary
One extra irrigation (total four) increased wheat yield by 4.93- 10.88% across sowing dates.
- Taxon
- wheatTriticum aestivume0
- Material
- sowing datese1
- Treatment
- One extra (total four) irrigatione1
- Outcome
- wheat yielde1
- Direction
- increasinge1
- Value
- 4.93- 10.88%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“One extra (total four) irrigation further amplified the positive impact of irrigation by increasing wheat yield by 4.93- 10.88% for sowing dates”
Claim · model-written summary
One extra irrigation (total four) increased wheat yield by 6.88- 7.84% across varieties.
- Taxon
- wheatTriticum aestivume0
- Material
- varietiese2
- Treatment
- One extra (total four) irrigatione1
- Outcome
- wheat yielde1
- Direction
- increasinge1
- Value
- 6.88- 7.84%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“One extra (total four) irrigation further amplified the positive impact of irrigation by increasing wheat yield by 4.93- 10.88% for sowing dates”
e2“6.88- 7.84% for varieties”
Claim · model-written summary
The positive impact of irrigation declined under projected climate scenarios for the 2050s and 2080s.
- Taxon
- wheatTriticum aestivume0
- Treatment
- projected climate scenarios for the 2050s and 2080se1
- Outcome
- the positive impact of irrigatione1
- Direction
- declinede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“the positive impact of irrigation declined under projected climate scenarios for the 2050s and 2080s”
Claim · model-written summary
The authors recommend delayed sowing of VL-829 and VL-907 up to 20 December with irrigations increased from two to five as best adaptive strategies for the region.
- Taxon
- wheatTriticum aestivume0
- Treatment
- delayed sowing either of VL-829 and VL-907 varieties up to December 20e1
- Outcome
- best adaptive strategies for wheat crop of this regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four wheat varieties (viz., HS-490, VL-829, VL-892 and VL-907)”
e1“delayed sowing either of VL-829 and VL-907 varieties up to December 20 and increase in number of irrigations from two (each at 35 and 75 DAS) to five (each at 30, 60, 90, 120 and 145 DAS) appeared as best adaptive strategies for wheat crop of this region”
The same questions in other papers
irrigation · yield · Triticum aestivum (wheat)Positive and negative results
797 papers in the same direction as this paper · 184 in the opposite direction · 7 reporting no difference from an alternative
- negative
- no effect
- negative
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