Common bean on-farm trial in Nicaragua

Data from decentralized on-farm trials of common bean (Phaseolus vulgaris L.) varieties in Nicaragua over five seasons between 2015 and 2016. Following the tricot approach, farmers were asked to test three varieties of common bean randomly assigned as incomplete blocks of three varieties (out of 10 varieties) and assess which of those three had the best and worst performance in nine traits (Vigor, Architecture, Resistance to Pests, Resistance to Diseases, Tolerance to Drought, Yield, Marketability, Taste, and Overall Appreciation).

nicabean

Format

A list with two data frames, nicabean[["trial"]] contains the trial data:

id: the plot id
item: the variety name
trait: the trait for the given variety and plot id
rank: the rank for the given variety and trait, with 1 being higher and 3 the lowest

nicabean[["bean_covar"]] contains the covariates associated with the data:

id: the plot id
adm0: the country name where trials were set
longitude: the longitude of the trial plot
latitude: the latitude of the trial plot
trial: the trial name as registered on ClimMob
variety_a: the variety assigned as label A in the incomplete block
variety_b: the variety assigned as label B in the incomplete block
variety_c: the variety assigned as label C in the incomplete block
planting_date: the planting date
gender: the farmer gender
age: the farmer age

Source

van Etten, J., et. al. (2016). Experimental Agriculture, 55, 275-296. doi:10.1017/S0014479716000739

van Etten, J., et. al. (2019). PNAS 116(10) 4194-4199 doi:10.1073/pnas.1813720116