Climate change: implications for the yield of edible rice
Global warming affects not only rice yield but also grain quality. A better understanding of the effects of climate factors on rice quality provides information for new breeding strategies to develop varieties of rice adapted to a changing world. Chalkiness is a key trait of physical quality, and al...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Public Library of Science
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/165637 |
| _version_ | 1855519718854623232 |
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| author | Zhao, Xiangqian Fitzgerald, Melissa |
| author_browse | Fitzgerald, Melissa Zhao, Xiangqian |
| author_facet | Zhao, Xiangqian Fitzgerald, Melissa |
| author_sort | Zhao, Xiangqian |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Global warming affects not only rice yield but also grain quality. A better understanding of the effects of climate factors on rice quality provides information for new breeding strategies to develop varieties of rice adapted to a changing world. Chalkiness is a key trait of physical quality, and along with head rice yield, is used to determine the price of rice in all markets. In the present study, we show that for every ∼1% decrease in chalkiness, an increase of ∼1% in head rice yield follows, illustrating the dual impact of chalk on amount of marketable rice and its value. Previous studies in controlled growing conditions report that chalkiness is associated with high temperature. From 1980–2009 at IRRI, Los Baños, the Philippines, annual minimum and mean temperatures, and diurnal variation changed significantly. The objective of this study was to determine how climate impacts chalkiness in field conditions over four wet and dry seasons. We show that low relative humidity and a high vapour pressure deficit in the dry season associate with low chalk and high head rice yield in spite of higher maximum temperature, but in the opposite conditions of the wet season, chalk is high and head rice yield is low. The data therefore suggest that transpirational cooling is a key factor affecting chalkiness and head rice yield, and global warming per se might not be the major factor that decreases the amount and quality of rice, but other climate factors in combination, that enable the crop to maintain a cool canopy. |
| format | Journal Article |
| id | CGSpace165637 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace1656372025-01-24T14:12:25Z Climate change: implications for the yield of edible rice Zhao, Xiangqian Fitzgerald, Melissa climatic change climatic factors grain quality grain yield greenhouse effect markets relative humidity Global warming affects not only rice yield but also grain quality. A better understanding of the effects of climate factors on rice quality provides information for new breeding strategies to develop varieties of rice adapted to a changing world. Chalkiness is a key trait of physical quality, and along with head rice yield, is used to determine the price of rice in all markets. In the present study, we show that for every ∼1% decrease in chalkiness, an increase of ∼1% in head rice yield follows, illustrating the dual impact of chalk on amount of marketable rice and its value. Previous studies in controlled growing conditions report that chalkiness is associated with high temperature. From 1980–2009 at IRRI, Los Baños, the Philippines, annual minimum and mean temperatures, and diurnal variation changed significantly. The objective of this study was to determine how climate impacts chalkiness in field conditions over four wet and dry seasons. We show that low relative humidity and a high vapour pressure deficit in the dry season associate with low chalk and high head rice yield in spite of higher maximum temperature, but in the opposite conditions of the wet season, chalk is high and head rice yield is low. The data therefore suggest that transpirational cooling is a key factor affecting chalkiness and head rice yield, and global warming per se might not be the major factor that decreases the amount and quality of rice, but other climate factors in combination, that enable the crop to maintain a cool canopy. 2013-06-12 2024-12-19T12:55:17Z 2024-12-19T12:55:17Z Journal Article https://hdl.handle.net/10568/165637 en Open Access Public Library of Science Zhao, Xiangqian; Fitzgerald, Melissa. 2013. Climate change: implications for the yield of edible rice. PLoS ONE, Volume 8 no. 6 p. e66218 |
| spellingShingle | climatic change climatic factors grain quality grain yield greenhouse effect markets relative humidity Zhao, Xiangqian Fitzgerald, Melissa Climate change: implications for the yield of edible rice |
| title | Climate change: implications for the yield of edible rice |
| title_full | Climate change: implications for the yield of edible rice |
| title_fullStr | Climate change: implications for the yield of edible rice |
| title_full_unstemmed | Climate change: implications for the yield of edible rice |
| title_short | Climate change: implications for the yield of edible rice |
| title_sort | climate change implications for the yield of edible rice |
| topic | climatic change climatic factors grain quality grain yield greenhouse effect markets relative humidity |
| url | https://hdl.handle.net/10568/165637 |
| work_keys_str_mv | AT zhaoxiangqian climatechangeimplicationsfortheyieldofediblerice AT fitzgeraldmelissa climatechangeimplicationsfortheyieldofediblerice |