Optimizing crop varietal mixtures for viral disease management: A case study on cassava virus epidemics
Fig 5
A susceptible-resistant mixture (16.4% susceptible vs. 83.6% resistant) is yield-wise optimal under moderate whitefly pressure and brown streak disease.
This mixture produces a yield of 20.6 tons/ha for the resistant variety and 4.9 tons/ha for the susceptible variety. Notably, the susceptible cassava yield in the mixture outperforms that of a susceptible monoculture, despite the smaller proportion of susceptible cassava (16.4%) in the mixture. Disease incidence is significantly reduced in the mixture.