The variety mixture strategy assessed in a G × G experiment with rice and the blast fungus Magnaporthe oryzae.

ABSTRACT: Frequent and devastating epidemics of parasites are one of the major issues encountered by modern agriculture. To manage the impact of pathogens, resistant plant varieties have been selected. However, resistances are overcome by parasites requiring the use of pesticides and causing new economical and food safety issues. A promising strategy to maintain the epidemic at a low level and hamper pathogen's adaptation to varietal resistance is the use of mixtures of varieties such that the mix will form a heterogeneous environment for the parasite. A way to find the good combination of varieties that will actually constitute a heterogeneous environment for pathogens is to look for genotype × genotype (G × G) interactions between pathogens and plant varieties. A pattern in which pathogens have a

SUBMITTER: Gallet R 

PROVIDER: S-EPMC3893683 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature