Variety selection and diversification are climate change adaptation practices pursued by Colombian common bean producers. We investigate the drivers behind common bean variety selection and diversification in one of the most important common bean production regions in Colombia —Santander. The effects of climate change on this region are expected to be elevation driven. Exploiting the relationship between elevation-driven weather variations and climate change perception in Santander, we estimate an alternative-specific conditional logistic regression model to identify the determinants of common bean variety selection from a survey of producers. Using an ordered-logistic regression model, we also investigate the drivers behind common bean variety diversification within this farming community. We find that farms' elevation, household composition, and seed certification are some of the most important drivers behind farmers' common bean variety selection in Santander. We also find that varieties that sell at higher prices and have shorter vegetative cycles tend to be more preferred by farmers. Finally, farmers who receive more help from family members and own a tractor tend to grow more than one variety in the same production cycle. Common bean breeding programmes can exploit these drivers to design communication strategies to maximize uptake of newly developed common bean phenotypes.

品种选择和多样化是哥伦比亚普通豆生产商奉行的适应气候变化的做法。我们调查了哥伦比亚最重要的菜豆生产区之一——桑坦德菜豆品种选择和多样化背后的驱动因素。气候变化对该地区的影响预计是由海拔造成的。利用桑坦德海拔驱动的天气变化与气候变化感知之间的关系，我们估计了一个替代特定的条件逻辑回归模型，以从对生产者的调查中确定普通豆类品种选择的决定因素。使用有序逻辑回归模型，我们还调查了该农业社区内普通豆品种多样化背后的驱动因素。我们发现，农场的海拔、家庭构成和种子认证是桑坦德农民选择普通豆品种的最重要驱动因素。我们还发现，售价较高且生长周期较短的品种往往更受农民青睐。最后，从家庭成员获得更多帮助并拥有拖拉机的农民往往会在同一生产周期内种植多个品种。菜豆育种计划可以利用这些驱动因素来设计沟通策略，以最大限度地吸收新开发的菜豆表型。