Rice responses to rising temperatures – challenges, perspectives and future directions
Phenotypic plasticity in overcoming heat stress‐induced damage across hot tropical rice‐growing regions is predominantly governed by relative humidity. Expression of transpiration cooling, an effective heat‐avoiding mechanism, will diminish with the transition from fully flooded paddies to water‐sav...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2015
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| Acceso en línea: | https://hdl.handle.net/10568/165465 |
| _version_ | 1855528044666552320 |
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| author | Jagadish, S.V.K. Murty, M. V. R. Quick, W. Paul |
| author_browse | Jagadish, S.V.K. Murty, M. V. R. Quick, W. Paul |
| author_facet | Jagadish, S.V.K. Murty, M. V. R. Quick, W. Paul |
| author_sort | Jagadish, S.V.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Phenotypic plasticity in overcoming heat stress‐induced damage across hot tropical rice‐growing regions is predominantly governed by relative humidity. Expression of transpiration cooling, an effective heat‐avoiding mechanism, will diminish with the transition from fully flooded paddies to water‐saving technologies, such as direct‐seeded and aerobic rice cultivation, thus further aggravating stress damage. This change can potentially introduce greater sensitivity to previously unaffected developmental stages such as floral meristem (panicle) initiation and spikelet differentiation, and further intensify vulnerability at the known sensitive gametogenesis and flowering stages. More than the mean temperature rise, increased variability and a more rapid increase in nighttime temperature compared with the daytime maximum present a greater challenge. This review addresses (1) the importance of vapour pressure deficit under fully flooded paddies and increased vulnerability of rice production to heat stress or intermittent occurrence of combined heat and drought stress under emerging water‐saving rice technologies; (2) the major disconnect with high night temperature response between field and controlled environments in terms of spikelet sterility; (3) highlights the most important mechanisms that affect key grain quality parameters, such as chalk formation under heat stress; and finally (4), we model and estimate heat stress‐induced spikelet sterility taking South Asia as a case study. |
| format | Journal Article |
| id | CGSpace165465 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1654652025-05-14T10:24:13Z Rice responses to rising temperatures – challenges, perspectives and future directions Jagadish, S.V.K. Murty, M. V. R. Quick, W. Paul Phenotypic plasticity in overcoming heat stress‐induced damage across hot tropical rice‐growing regions is predominantly governed by relative humidity. Expression of transpiration cooling, an effective heat‐avoiding mechanism, will diminish with the transition from fully flooded paddies to water‐saving technologies, such as direct‐seeded and aerobic rice cultivation, thus further aggravating stress damage. This change can potentially introduce greater sensitivity to previously unaffected developmental stages such as floral meristem (panicle) initiation and spikelet differentiation, and further intensify vulnerability at the known sensitive gametogenesis and flowering stages. More than the mean temperature rise, increased variability and a more rapid increase in nighttime temperature compared with the daytime maximum present a greater challenge. This review addresses (1) the importance of vapour pressure deficit under fully flooded paddies and increased vulnerability of rice production to heat stress or intermittent occurrence of combined heat and drought stress under emerging water‐saving rice technologies; (2) the major disconnect with high night temperature response between field and controlled environments in terms of spikelet sterility; (3) highlights the most important mechanisms that affect key grain quality parameters, such as chalk formation under heat stress; and finally (4), we model and estimate heat stress‐induced spikelet sterility taking South Asia as a case study. 2015-09 2024-12-19T12:55:05Z 2024-12-19T12:55:05Z Journal Article https://hdl.handle.net/10568/165465 en Wiley JAGADISH, S. V. K.; MURTY, M. V. R. and QUICK, W. P. 2015. Rice responses to rising temperatures $1 (B challenges, perspectives and future directions. Plant Cell and Environment, Volume 38 no. 9 p. 1686-1698 |
| spellingShingle | Jagadish, S.V.K. Murty, M. V. R. Quick, W. Paul Rice responses to rising temperatures – challenges, perspectives and future directions |
| title | Rice responses to rising temperatures – challenges, perspectives and future directions |
| title_full | Rice responses to rising temperatures – challenges, perspectives and future directions |
| title_fullStr | Rice responses to rising temperatures – challenges, perspectives and future directions |
| title_full_unstemmed | Rice responses to rising temperatures – challenges, perspectives and future directions |
| title_short | Rice responses to rising temperatures – challenges, perspectives and future directions |
| title_sort | rice responses to rising temperatures challenges perspectives and future directions |
| url | https://hdl.handle.net/10568/165465 |
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