@article{fdi:010054188, title = {{E}ffect of banana crop mixtures on the plant-feeding nematode community}, author = {{Q}u{\'e}n{\'e}herv{\'e}, {P}atrick and {B}arriere, {V}. and {S}almon, {F}. and {H}oudin, {F}. and {A}chard, {R}. and {G}ertrude, {J}. {C}. and {M}arie-{L}uce, {S}. and {C}habrier, {C}. and {D}uyck, {P}. {F}. and {T}ixier, {P}.}, editor = {}, language = {{ENG}}, abstract = {{V}arietal mixture is a cultural technique in which the genetic and functional diversities of varieties are used to manage pests and diseases. {T}his strategy is commonly used on grass crops such as rice, barley, maize, and wheat to mitigate some windborne and soilborne pathogens. {T}he effects of varietal mixtures on the number and community structure of pests, including plant-feeding nematodes ({PFN}s), however, have rarely been studied. {I}n experiments conducted in {M}artinique, we evaluated the effect of varietal mixtures of bananas on {PFN} communities. {A} growth chamber experiment was used to measure the susceptibility of three banana cultivars dessert banana cv. 902 ({M}usa {AAA}, {C}avendish subgroup); a new synthetic hybrid cv. {FB}924 ({M}usa {AAA}); and a plantain cv. {C}reole blanche ({M}usa {AAB}, {F}rench {H}orn) to the two major {PFN}s. {T}he multiplication rates of {R}adopholus similis and {P}ratylenchus coffeae were substantially different on the three varieties; for example, the multiplication rate was up to 10 times greater on plantain cv. {C}reole blanche than on hybrid cv. {FB}924. {I}n a field experiment, we planted the three varieties in pairs that included all six possible combinations. {B}anana varietal mixtures significantly affected both {PFN} densities and community composition. {D}ifferences in community composition among the pairs involved a shifting equilibrium among nematode species and an interspecific competition for food resources. {T}he relative abundance of the spiral nematode {H}elicotylenchus multicinctus increased while that of the burrowing nematode {R}. similis, which is the most damaging species on bananas, decreased. {T}he use of a varietal mixture in which one variety supports a low {PFN} multiplication rate appears to have practical relevance, especially in systems based on very susceptible cultivars such as plantains. {T}he use of varietal mixtures should not create management problems, especially for plantations that produce bananas for local markets.}, keywords = {{C}ommunity structure ; {C}rop mixture ; {N}ematode ; {M}usa ; {M}artinique ; {R}adopholus similis}, booktitle = {}, journal = {{A}pplied {S}oil {E}cology}, volume = {49}, numero = {}, pages = {40--45}, ISSN = {0929-1393}, year = {2011}, DOI = {10.1016/j.apsoil.2011.07.003}, URL = {https://www.documentation.ird.fr/hor/fdi:010054188}, }