| Sumario: | The study assessed determinants influencing the scaling out of certified improved cassava (Manihot esculenta L.) seed varieties in Uganda. Conducted across Kiryandongo, Serere, and Kamuli districts—areas previously engaged in formal seed system pilots—the research combined household surveys (120 respondents), 21 key informant interviews, and six focus group discussions. Using a multivariate probit model, results showed that training in cassava seed multiplication, education level, and household size significantly influenced scaling decisions. Completion of primary education reduced the likelihood of scaling NAROCASS1 by 17.8% and NASE14 by 23.3%, while training in seed multiplication increased the probability of scaling NASE14 by 16.2%. Larger households were less likely to scale due to resource constraints. Older male-headed households had higher adoption rates, while gender disparities persisted due to differential access to training and resources. The study recommends practical, tailored training approaches that align with farmers’ education levels to effectively enhance dissemination of improved cassava varieties.
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