Marenya Paswel P, Wanyama Rosina, Alemu Solomon, Woyengo Vincent
International Maize and Wheat Improvement Center (CIMMYT), Nairobi, Kenya.
CIMMYT, Nairobi, Kenya.
Heliyon. 2021 Mar 12;7(3):e06389. doi: 10.1016/j.heliyon.2021.e06389. eCollection 2021 Mar.
Farmers inevitably make trade-offs when choosing which crop varieties to grow based on each variety's unique strengths (and weaknesses). This study uses choice experiment data from 1288 maize farmers from western Kenya and applies a mixed logit model to estimate willingness to sacrifice yield as an experimental devise to measure such trade-offs when farmers are called upon to chose varieties with varying levels of desirable agronomic or consumption traits. We find that men and women respondents had similar preferences for maize traits, but differed in the rate of tradeoffs between traits. Women respondents appeared to make larger yield sacrifices for tolerance to drought, weed and good storability than men. Men showed higher willingness to sacrifice yield for closed tip. Implications for gender-sensitive maize breeding and seed market development are drawn.
农民在根据每个作物品种的独特优势（和劣势）选择种植哪种品种时，不可避免地要做出权衡。本研究使用了来自肯尼亚西部1288名玉米种植户的选择实验数据，并应用混合逻辑模型来估计牺牲产量的意愿，以此作为一种实验设计，来衡量当农民被要求选择具有不同理想农艺或消费性状水平的品种时的此类权衡。我们发现，男性和女性受访者对玉米性状的偏好相似，但在性状之间的权衡率上存在差异。女性受访者似乎为了耐旱性、抗杂草性和良好的储存性而比男性做出更大的产量牺牲。男性为了玉米穗尖闭合表现出更高的牺牲产量的意愿。由此得出了对性别敏感的玉米育种和种子市场发展的启示。
