Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14071 |
Breeding implications of drought stress under future climate for upland rice in Brazil | |
Ramirez-Villegas, Julian1,2,3; Heinemann, Alexandre B.4; de Castro, Adriano Pereira4; Breseghello, Flavio4; Navarro-Racines, Carlos3; Li, Tao5; Rebolledo, Maria C.3,6,7; Challinor, Andrew J.1,2 | |
2018-05-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:5页码:2035-2050 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Colombia; Brazil; Philippines; France |
英文摘要 | Rice is the most important food crop in the developing world. For rice production systems to address the challenges of increasing demand and climate change, potential and on-farm yield increases must be increased. Breeding is one of the main strategies toward such aim. Here, we hypothesize that climatic and atmospheric changes for the upland rice growing period in central Brazil are likely to alter environment groupings and drought stress patterns by 2050, leading to changing breeding targets during the 21st century. As a result of changes in drought stress frequency and intensity, we found reductions in productivity in the range of 200-600 kg/ha (up to 20%) and reductions in yield stability throughout virtually the entire upland rice growing area (except for the southeast). In the face of these changes, our crop simulation analysis suggests that the current strategy of the breeding program, which aims at achieving wide adaptation, should be adjusted. Based on the results for current and future climates, a weighted selection strategy for the three environmental groups that characterize the region is suggested. For the highly favorable environment (HFE, 36%-41% growing area, depending on RCP), selection should be done under both stress-free and terminal stress conditions; for the favorable environment (FE, 27%-40%), selection should aim at testing under reproductive and terminal stress, and for the least favorable environment (LFE, 23%-27%), selection should be conducted for response to reproductive stress only and for the joint occurrence of reproductive and terminal stress. Even though there are differences in timing, it is noteworthy that stress levels are similar across environments, with 40%-60% of crop water demand unsatisfied. Efficient crop improvement targeted toward adaptive traits for drought tolerance will enhance upland rice crop system resilience under climate change. |
英文关键词 | adaptation breeding drought stress environment groups simulation modeling |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428879800017 |
WOS关键词 | CROP MODELS ; CHANGE ADAPTATION ; FOOD SECURITY ; WATER-DEFICIT ; ELEVATED CO2 ; ORYZA-SATIVA ; YIELD ; TEMPERATURE ; CULTIVARS ; MAIZE |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17845 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds, W Yorkshire, England; 2.CGIAR Res Program Climate Change Agr & Food Secur, Cali, Colombia; 3.Int Ctr Trop Agr, Cali, Colombia; 4.Embrapa Arroz & Feijao Rodovia, Santo Antonio De Goias, Brazil; 5.Int Rice Res Inst, Los Banos, Laguna, Philippines; 6.CIRAD, UMR AGAP, Montpellier, France; 7.Univ Montpellier, INRA, Montpellier SupAgro, AGAP,CIRAD, Montpellier, France |
推荐引用方式 GB/T 7714 | Ramirez-Villegas, Julian,Heinemann, Alexandre B.,de Castro, Adriano Pereira,et al. Breeding implications of drought stress under future climate for upland rice in Brazil[J]. GLOBAL CHANGE BIOLOGY,2018,24(5):2035-2050. |
APA | Ramirez-Villegas, Julian.,Heinemann, Alexandre B..,de Castro, Adriano Pereira.,Breseghello, Flavio.,Navarro-Racines, Carlos.,...&Challinor, Andrew J..(2018).Breeding implications of drought stress under future climate for upland rice in Brazil.GLOBAL CHANGE BIOLOGY,24(5),2035-2050. |
MLA | Ramirez-Villegas, Julian,et al."Breeding implications of drought stress under future climate for upland rice in Brazil".GLOBAL CHANGE BIOLOGY 24.5(2018):2035-2050. |
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