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Mapping abiotic stresses for rice in Africa: Drought, cold, iron toxicity, salinity and sodicity

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Title Mapping abiotic stresses for rice in Africa: Drought, cold, iron toxicity, salinity and sodicity
 
Creator Oort, P.A.J. van
 
Subject gis
oryza sativa
rice
drought
salinity
 
Description Maps of abiotic stresses for rice can be useful for (1) prioritizing research and (2) identifying stress hotspots, for directing technologies and varieties to those areas where they are most needed. Large-scale maps of stresses are not available for Africa. This paper considers four abiotic stresses relevant for rice in Africa (drought, cold, iron toxicity and salinity/sodicity). Maps showing hotspots of the stresses, the countries most affected and total potentially affected area are presented. In terms of relative importance, the study identified drought as the most important stress (33% of rice area potentially affected), followed by iron toxicity (12%) and then cold (7%) and salinity/sodicity (2%). Hotspots for iron toxicity, cold and salinity are identified. For drought, local variation along the hydromorphic zone was a stronger determinant than larger-scale climatic variation, therefore mapping of drought based on climatic zones has only limited value. Uncertainties in the mappings are discussed.
 
Date 2018-04
2019-07-02T14:57:03Z
2019-07-02T14:57:03Z
 
Type Journal Article
 
Identifier van Oort, P.A.J. 2018. Mapping abiotic stresses for rice in Africa: Drought, cold, iron toxicity, salinity and sodicity. Field Crops Research 219:55-75.
0378-4290
https://hdl.handle.net/10568/102057
https://doi.org/10.1016/j.fcr.2018.01.016
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Elsevier
 
Source Field Crops Research