Meta-analysis of water stress impact on rice quality in China
Climate change will lead to an increase in the frequency of droughts and extreme rainfalls, with a potential negative impact on rice production. Many studies have been conducted to assess the impact of water stress on yields, but much less attention was paid to rice quality, leading to a poor unders...
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| Language: | English |
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Elsevier
2025-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377424005663 |
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| author | Shuhui Han Xianfeng Liu David Makowski Philippe Ciais |
| author_facet | Shuhui Han Xianfeng Liu David Makowski Philippe Ciais |
| author_sort | Shuhui Han |
| collection | DOAJ |
| description | Climate change will lead to an increase in the frequency of droughts and extreme rainfalls, with a potential negative impact on rice production. Many studies have been conducted to assess the impact of water stress on yields, but much less attention was paid to rice quality, leading to a poor understanding of the effect of water stress on rice grain quality traits, especially in China - a major rice producer. Although a number of individual experiments have been carried out on this topic, no quantitative synthesis has yet been produced. Therefore, to quantify the effect of water stress on rice quality in China, we present here the results of a meta-analysis based on 1341 experimental records collected for seven standard rice quality criteria extracted from 37 articles. We employed random effect models to estimate mean effect sizes measuring the extent of the impact of water stress on rice quality and identify the main driving factors. The results showed that water stress significantly increased grain chalky rate by 7.63 % and chalkiness by 17.7 % and significantly decreased the milling quality indexes (brown rice rate decreased by 0.8 %, milled rice rate decreased by 0.9 %, and head rice rate decreased by 2 %) compared to well-watered conditions, both effects leading to reduced rice quality. Water stress also caused a significant increase in protein content by 4.65 %. Soil water potential had a strong effect on the impact of water stress on rice milling quality, while protein content was mainly regulated by the growth stage at which water stress occurred. These results offer compelling evidence of the effect of water stress on rice quality in China, highlighting the significance of developing climate change adaptation strategies to ensure the maintenance of satisfactory rice quality in the future, thereby fostering the production of high-quality rice with high yield. |
| format | Article |
| id | doaj-art-5413caff763f46a7b32471a2a46f13aa |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-5413caff763f46a7b32471a2a46f13aa2025-01-07T04:16:48ZengElsevierAgricultural Water Management1873-22832025-02-01307109230Meta-analysis of water stress impact on rice quality in ChinaShuhui Han0Xianfeng Liu1David Makowski2Philippe Ciais3School of Geography and Tourism, Shaanxi Normal University, Xi’an 710062, ChinaSchool of Geography and Tourism, Shaanxi Normal University, Xi’an 710062, China; Laboratoire des Sciences du Climat et de l’Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette 91190, France; Corresponding author at: School of Geography and Tourism, Shaanxi Normal University, Xi’an 710062, China.Université Paris-Saclay, INRAE, AgroParisTech, UMR 518 MIA-PS, Palaiseau 91120, FranceLaboratoire des Sciences du Climat et de l’Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette 91190, FranceClimate change will lead to an increase in the frequency of droughts and extreme rainfalls, with a potential negative impact on rice production. Many studies have been conducted to assess the impact of water stress on yields, but much less attention was paid to rice quality, leading to a poor understanding of the effect of water stress on rice grain quality traits, especially in China - a major rice producer. Although a number of individual experiments have been carried out on this topic, no quantitative synthesis has yet been produced. Therefore, to quantify the effect of water stress on rice quality in China, we present here the results of a meta-analysis based on 1341 experimental records collected for seven standard rice quality criteria extracted from 37 articles. We employed random effect models to estimate mean effect sizes measuring the extent of the impact of water stress on rice quality and identify the main driving factors. The results showed that water stress significantly increased grain chalky rate by 7.63 % and chalkiness by 17.7 % and significantly decreased the milling quality indexes (brown rice rate decreased by 0.8 %, milled rice rate decreased by 0.9 %, and head rice rate decreased by 2 %) compared to well-watered conditions, both effects leading to reduced rice quality. Water stress also caused a significant increase in protein content by 4.65 %. Soil water potential had a strong effect on the impact of water stress on rice milling quality, while protein content was mainly regulated by the growth stage at which water stress occurred. These results offer compelling evidence of the effect of water stress on rice quality in China, highlighting the significance of developing climate change adaptation strategies to ensure the maintenance of satisfactory rice quality in the future, thereby fostering the production of high-quality rice with high yield.http://www.sciencedirect.com/science/article/pii/S0378377424005663Rice qualityWater stressDroughtFood securityClimate change |
| spellingShingle | Shuhui Han Xianfeng Liu David Makowski Philippe Ciais Meta-analysis of water stress impact on rice quality in China Agricultural Water Management Rice quality Water stress Drought Food security Climate change |
| title | Meta-analysis of water stress impact on rice quality in China |
| title_full | Meta-analysis of water stress impact on rice quality in China |
| title_fullStr | Meta-analysis of water stress impact on rice quality in China |
| title_full_unstemmed | Meta-analysis of water stress impact on rice quality in China |
| title_short | Meta-analysis of water stress impact on rice quality in China |
| title_sort | meta analysis of water stress impact on rice quality in china |
| topic | Rice quality Water stress Drought Food security Climate change |
| url | http://www.sciencedirect.com/science/article/pii/S0378377424005663 |
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