期刊名称：International Journal of Food and Agricultural Economics
印刷版ISSN：2147-8988
出版年度：2018
卷号：6
期号：3
页码：1-13
出版社：International Journal of Food and Agricultural Economics
摘要：The study examined the effect of farmers’ perception about the quality of seed yam typically
used for cultivation on their preferences for certified seed yam. Heckman’s sample selectivity
probit model was applied on survey data collected from 380 yam farmers. The study found
that farmers generally agree that the use of certified seed yam would help to improve yield
because of minimum to no disease/pest infestation. Farmers expressed their willingness to
purchase certified seed yam if the price is about 26% higher than those supplied from the
informal system in as much as the quality can be assured. The study found that farmer
educational level, experience, access to extension services and household incomes were
factors influencing farmers’ perception about quality of seed yam cultivated. Variables such
as age, educational level and income were also found to be factors that influence farmers’ preference for certified seed yam. The results were similar for both Pona and other white yam
varieties. The study recommends promotion of farmer education through increased access to
extension services on seed quality assessment together with other agronomic practices
including farmer field schools, to help improve their ability to assess the quality of seed yam
obtained from other sources as well as increase their preference for certified seed yam.
