Abstract
Elevated CO2 increases rice yields, and the response level varies across locations and genotypes. Previous analyses of genotypic variations from diverse Free-Air CO2 Enrichment (FACE) studies lacked specificity, limiting their applicability in simulating the responses of crop growth to elevated CO2. Using meta-analysis approach and the ORYZA (v3) model with historical and projected climatic data, this study evaluated the differences in the responses of rice ecotypes to elevated CO2 and identified adaptive measures. Meta-analytical findings indicated that Chinese inbred indica (indicai) and hybrid indica (indicah) rice exhibited comparable yield response rates (28.4% and 31.1%, respectively) to elevated CO2, surpassing those of Chinese japonica rice and Japanese indicai and japonica rice. Achieving higher adaptation to elevated CO2, exemplified by Chinese indicah rice, necessitates the consideration of balanced yield components, with individual contributions to yield responses ranging from 9.8% to 36.2%. This study highlighted the susceptibility of japonica rice to adverse effects of maximum temperatures on yield component responses to elevated CO2 compared to indicai or indicah rice. Strategic adjustments in sowing dates can enhance rice production under climate change, with high-response genotypes benefiting more from optimal sowing periods. Furthermore, for genotypes with less responsiveness to elevated CO2, augmenting nitrogen application in conjunction with sowing date adjustments was beneficial for yield optimization. This research not only advances our understanding of the diverse adaptation strategies of rice genotypes under varying climatic conditions but also enhances the precision of crop growth simulations by accounting for the varied responses to CO2 enrichment. These insights are pivotal for developing targeted breeding and management practices aimed at enhancing climate resilience in rice production.
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Claims 9
Claim · model-written summary
Chinese inbred indica (indicai) rice showed a yield response rate of 28.4% to elevated CO2.
- Taxon
- rice
Oryza sativae1 - Material
- Chinese inbred indica (indicai)e1
- Treatment
- elevated CO2e1
- Outcome
- yield response ratese1
- Direction
- increaseinferrede1
- Value
- 28.4%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chinese inbred indica (indicai) and hybrid indica (indicah) rice exhibited comparable yield response rates (28.4% and 31.1%, respectively) to elevated CO2, surpassing those of Chinese japonica rice and Japanese indicai and japonica rice”
Claim · model-written summary
Hybrid indica (indicah) rice showed a yield response rate of 31.1% to elevated CO2.
- Taxon
- riceOryza sativae1
- Material
- hybrid indica (indicah)e1
- Treatment
- elevated CO2e1
- Outcome
- yield response ratese1
- Direction
- increaseinferrede1
- Value
- 31.1%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chinese inbred indica (indicai) and hybrid indica (indicah) rice exhibited comparable yield response rates (28.4% and 31.1%, respectively) to elevated CO2, surpassing those of Chinese japonica rice and Japanese indicai and japonica rice”
Claim · model-written summary
Chinese indica rice (indicai and indicah) had comparable yield response rates to elevated CO2.
- Taxon
- riceOryza sativae1
- Material
- Chinese inbred indica (indicai) and hybrid indica (indicah)e1
- Treatment
- elevated CO2e1
- Outcome
- yield response ratese1
- Direction
- no_changeinferrede1
- Comparator
- hybrid indica (indicah)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chinese inbred indica (indicai) and hybrid indica (indicah) rice exhibited comparable yield response rates (28.4% and 31.1%, respectively) to elevated CO2, surpassing those of Chinese japonica rice and Japanese indicai and japonica rice”
Claim · model-written summary
Hybrid indica (indicah) rice surpassed Chinese japonica and Japanese indica and japonica rice in yield response to elevated CO2.
- Taxon
- riceOryza sativae1
- Material
- hybrid indica (indicah)e1
- Treatment
- elevated CO2e1
- Outcome
- yield response ratese1
- Direction
- surpassinge1
- Comparator
- Chinese japonica rice and Japanese indicai and japonica ricee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chinese inbred indica (indicai) and hybrid indica (indicah) rice exhibited comparable yield response rates (28.4% and 31.1%, respectively) to elevated CO2, surpassing those of Chinese japonica rice and Japanese indicai and japonica rice”
Claim · model-written summary
Individual contributions of yield components to yield responses of Chinese indicah rice ranged from 9.8% to 36.2%.
- Taxon
- riceOryza sativae2
- Material
- indicahe2
- Outcome
- individual contributions to yield responsese2
- Value
- 9.8% to 36.2%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Achieving higher adaptation to elevated CO2, exemplified by Chinese indicah rice, necessitates the consideration of balanced yield components, with individual contributions to yield responses ranging from 9.8% to 36.2%”
Claim · model-written summary
Japonica rice was more susceptible than indicai or indicah rice to adverse effects of maximum temperatures on yield component responses to elevated CO2.
- Taxon
- japonica rice
_by_Augustus_Binu.jpg?width=60)
Oryza sativa Japonica Groupe3 - Treatment
- maximum temperaturese3
- Outcome
- yield component responses to elevated CO2e3
- Direction
- adverse effectse3
- Comparator
- indicai or indicah ricee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_by_Augustus_Binu.jpg?width=500)
Verbatim
e3“This study highlighted the susceptibility of japonica rice to adverse effects of maximum temperatures on yield component responses to elevated CO2 compared to indicai or indicah rice”
Claim · model-written summary
Adjusting sowing dates can enhance rice production under climate change (simulated).
- Taxon
- riceOryza sativae4
- Treatment
- adjustments in sowing datese4
- Outcome
- rice productione4
- Direction
- enhancee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Strategic adjustments in sowing dates can enhance rice production under climate change, with high-response genotypes benefiting more from optimal sowing periods”
Claim · model-written summary
High-response rice genotypes benefit more from optimal sowing periods (simulated).
- Taxon
- riceOryza sativae4
- Material
- high-response genotypese4
- Outcome
- benefiting more from optimal sowing periodse4
- Direction
- moree4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Strategic adjustments in sowing dates can enhance rice production under climate change, with high-response genotypes benefiting more from optimal sowing periods”
Claim · model-written summary
For rice genotypes less responsive to elevated CO2, augmenting nitrogen with sowing date adjustments is beneficial for yield optimization (simulated).
- Taxon
- riceOryza sativae4
- Material
- genotypes with less responsiveness to elevated CO2e5
- Treatment
- augmenting nitrogen application in conjunction with sowing date adjustmentse5
- Outcome
- yield optimizatione5
- Direction
- beneficiale5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Strategic adjustments in sowing dates can enhance rice production under climate change, with high-response genotypes benefiting more from optimal sowing periods”
e5“Furthermore, for genotypes with less responsiveness to elevated CO2, augmenting nitrogen application in conjunction with sowing date adjustments was beneficial for yield optimization”
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See all 2,045 papers →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.