Cassava brown streak disease and the sustainability of a clean seed system.

ABSTRACT: One method of reducing disease in crops is the dissemination of disease-free planting material from a multiplication site to growers. This study assesses the validity and sustainability of this method for cassava brown streak disease, a threat to cassava crops across East Africa. Using mathematical modelling, the effects of different environmental and control conditions on pathogen spread were determined in a single-field multiplication site. High disease pressure, through large vector populations and disease in the surrounding area, combined with poor roguing practice, resulted in unsuccessful disease suppression. However, fields may produce sufficiently clean material for replanting if these factors can be overcome. Assessing the sustainability of a low-pressure system over multiple harv

SUBMITTER: McQuaid CF 

PROVIDER: S-EPMC4950135 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature