City Research Online

Abstract

This paper offers the first nationwide analysis of Vietnamese rice varieties by combining DNA-based identification with quantitative trait loci (QTLs) and household survey data. Using nationally representative data from 2022, we found that 51% of rice farmers grew improved varieties. These varieties contained significantly more beneficial QTLs associated with yield, grain quality, and resistance to biotic and abiotic stresses than genetically unidentified varieties. On average, the improved varieties cultivated had been released 14 years prior to 2022. Farmer’s socioeconomic characteristics correlated with adoption patterns: belonging to an ethnic minority or residing in a government-classified poor commune significantly reduced the likelihood of growing an improved variety. Among adopters, varietal traits were further associated with specific adoption choices. Each additional trait-related QTL was associated with a 0.9% point increase in a province’s adoption rate. Traits conferring tolerance to abiotic stress were positively associated with adoption, suggesting farmers may prefer varieties that enhance resilience to environmental stressors.

Publication Type:	Article
Additional Information:	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.
Publisher Keywords:	Adoption, QTL, Marker-assisted selection, Molecular breeding, Rice, Viet Nam
Subjects:	H Social Sciences > H Social Sciences (General) H Social Sciences > HB Economic Theory S Agriculture > S Agriculture (General)
Departments:	Bayes Business School Bayes Business School > Faculty of Finance
SWORD Depositor:	Symplectic Administrator

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