Much of the empirical studies on crop varietal adoption in Sub-Saharan Africa relied on self-reported adoption in farm-household surveys, which is prone to measurement errors. In addition, farmers’ perceptions of consumption-related varietal traits in adoption studies has received limited attention compared with production-related traits. Using DNA-based and self-reported adoption measures, we analyze the adoption of improved cassava varieties (ICVs) with a focus on the extent of varietal misidentification, the sensitivity of the drivers of adoption to varietal misidentification and the role of farmers’ perceptions of biofortification trait in adoption decisions. We find that the adoption rate of ICVs is relatively high using both DNA-based and self-reported adoption measures, but there is notable misclassification in varietal adoption. We find that the mismatch in DNA-based and self-reported adoption measures leads to some variation in the factors that influence the likelihood and intensity of adoption of ICVs. This suggests that appropriate varietal identification helps in better understanding of the drivers of adoption. In addition, we find that despite the observed varietal misclassification, farmers’ perceptions of biofortification trait is significantly correlated with the probability and intensity of adoption of ICVs using both DNA-based and self-reported varietal identification. This suggests that inclusion of biofortification trait in cassava matters for both the likelihood and extent of adoption of ICVs. The latter lends credence to the emerging policy interests in breeding programs for biofortified crops to address hidden hunger in Nigeria.

撒哈拉以南非洲关于农作物品种收养的许多实证研究都依赖于农户调查中自我报告的收养，这容易产生计量误差。此外，与生产相关的性状相比，农民对收养研究中与消费相关的性状的认识受到了有限的关注。使用基于DNA和自我报告的收养措施，我们分析改良木薯品种（ICV）的收养情况，重点是品种误认的程度，收养动因对品种误认的敏感性以及农民对食物的认知作用收养决定中的生物强化特征。我们发现使用基于DNA的报告方法和自我报告的采用方法，ICV的采用率都相对较高，但是在品种采用中存在明显的错误分类。我们发现基于DNA的和自我报告的采用措施之间的不匹配导致影响采用ICV的可能性和强度的因素发生了一些变化。这表明适当的品种鉴定有助于更好地了解收养动因。此外，我们发现尽管观察到了品种错误分类，但农民对生物强化性状的认识与基于DNA和自我报告的品种鉴定采用ICV的可能性和强度显着相关。这表明在木薯中包含生物强化特征对采用ICV的可能性和程度均具有重要意义。后者使人们对在生物强化作物育种计划中解决政策隐患的新政策感兴趣，以解决尼日利亚的潜在饥饿问题。