Reducing susceptibility to drought under growing conditions as set by farmers: The impact of new generation drought tolerant maize varieties in Uganda

dc.creatorHabte, E.
dc.creatorMarenya, P.P.
dc.creatorBeyene, F.
dc.creatorBekele, A.
dc.date2023-03-31T20:30:13Z
dc.date2023-03-31T20:30:13Z
dc.date2023
dc.date.accessioned2023-07-17T20:10:30Z
dc.date.available2023-07-17T20:10:30Z
dc.identifierhttps://hdl.handle.net/10883/22558
dc.identifier10.3389/fsufs.2022.854856
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514301
dc.descriptionGiven the challenges brought about by the increasing frequency of climatic stressors (droughts) and other biotic challenges (pests and diseases), breeding for tolerance to these traits is now seen as an indispensable adjunct to the enhancement of yield potential. Drought tolerant (DT) maize varieties that do well under moderate drought and outperform (or do not underperform) commercial checks under normal rainfall are becoming available. This study examines the role of these maize varieties in mitigating the effects of drought on maize yields in drought-prone areas of eastern Uganda. We estimate the causal impact of these new generations of maize varieties using a multinomial endogenous switching regression treatment effect framework. The average treatment effects of adopting DT maize show that farmers who actually cultivated DT maize achieve 30% more yield than what they would have obtained with non-DT hybrids. Similarly, average treatment effects on the untreated, revealed that farmers who grew non-DT modern and local maize would have 32 and 54% more yield, respectively, if they instead had adopted DT maize. While being superior to all other maize seeds, the magnitudes of the benefits of DT maize varieties were more pronounced in areas with comparatively less rainfall amount providing strong evidence that the yield potential of these varieties is stable across space and a wide range of rainfall conditions. If the genetic gains of these varieties can be secured over the long term, their impacts in improving the resilience of maize farming systems are likely to be considerably large and favorable.
dc.languageEnglish
dc.publisherFrontiers
dc.relationClimate adaptation & mitigation
dc.relationExcellence in Agronomy
dc.relationMarket Intelligence
dc.relationSeed Equal
dc.relationResilient Agrifood Systems
dc.relationBill & Melinda Gates Foundation
dc.relationUnited States Agency for International Development
dc.relationhttps://hdl.handle.net/10568/129872
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source6
dc.source2571-581X
dc.sourceFrontiers in Sustainable Food Systems
dc.source854856
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectImpacts
dc.subjectMultinomial Switching Regression
dc.subjectDROUGHT
dc.subjectMAIZE
dc.subjectVARIETIES
dc.subjectRESILIENCE
dc.subjectFARMING SYSTEMS
dc.subjectSMALLHOLDERS
dc.subjectSustainable Agrifood Systems
dc.titleReducing susceptibility to drought under growing conditions as set by farmers: The impact of new generation drought tolerant maize varieties in Uganda
dc.typeArticle
dc.typePublished Version
dc.coverageUganda
dc.coverageSwitzerland


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