Trade-off between disease resistance and crop yield: a landscape-scale mathematical modelling perspective.

ABSTRACT: The deployment of crop varieties that are partially resistant to plant pathogens is an important method of disease control. However, a trade-off may occur between the benefits of planting the resistant variety and a yield penalty, whereby the standard susceptible variety outyields the resistant one in the absence of disease. This presents a dilemma: deploying the resistant variety is advisable only if the disease occurs and is sufficient for the resistant variety to outyield the infected standard variety. Additionally, planting the resistant variety carries with it a further advantage in that the resistant variety reduces the probability of disease invading. Therefore, viewed from the perspective of a grower community, there is likely to be an optimal trade-off and thus an optimal cropping

SUBMITTER: Vyska M 

PROVIDER: S-EPMC5095210 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature