Sustainable Agrifood Systems Program, International Maize and Wheat Improvement Center (CIMMYT), Nairobi, Kenya.
Enabling Impact Flagship, World Vegetable Center, Arusha, Tanzania.
PLoS One. 2022 Sep 29;17(9):e0274262. doi: 10.1371/journal.pone.0274262. eCollection 2022.
Among smallholder maize farmers in Ethiopia (and similar areas in Africa), yield and stress tolerance traits in maize varieties are important. While high yields remain a major objective, breeding and seed system development programs are increasingly based on the recognition that farmers also have an interest in other agronomic and consumption traits. In this paper we illustrate these issues by measuring the trade-offs farmers may be willing to make for specific traits in the mid-altitude maize markets in Ethiopia. Based on Choice Experiments among 1499 respondents, we estimate the preference for a set of agronomic and consumption traits relative to yield. by capturing farmers' "willingness to sacrifice yield". The results suggest a significant willingness to sacrifice yield for drought tolerance among both male and female household members, but not for early maturity per se. There was also a high willingness to sacrifice yields for plant architecture traits like closed tip and lodging resistance among male participants, but not among females. Heterogeneity in responses according to gender, education and land area under maize cultivation suggests that market segmentation is necessary for seed system development to become more demand-led and inclusive. Final and realistic segmentation will depend on the commercial viability or social impact potential of each segment.
在埃塞俄比亚(以及非洲类似地区)的小农户玉米种植者中,玉米品种的产量和抗逆性特征很重要。虽然高产量仍然是主要目标,但育种和种子系统开发计划越来越基于这样一种认识,即农民也对其他农艺和消费特征感兴趣。在本文中,我们通过衡量埃塞俄比亚中海拔玉米市场中农民可能愿意为特定特征做出的权衡来说明这些问题。基于对 1499 名受访者的选择实验,我们估计了相对于产量的一组农艺和消费特征的偏好。通过捕捉农民的“愿意牺牲产量”的意愿。结果表明,男性和女性家庭成员都愿意为耐旱性牺牲一定的产量,但对早熟本身则不然。男性参与者对封闭尖端和抗倒伏等植物结构特征也有很高的牺牲产量的意愿,但女性则没有。根据性别、教育程度和玉米种植面积的响应异质性表明,为了使种子系统发展更具需求导向和包容性,有必要进行市场细分。最终和现实的细分将取决于每个细分市场的商业可行性或社会影响潜力。