@article{fdi:010044046,
  title = {{N}ematode dissemination by water leached in soil : case study of {R}adopholus similis ({C}obb) {T}horne on nitisol under simulated rainfall},
  author = {{C}habrier, {C}. and {C}arles, {C}. and {Q}ueneherv{\'e}, {P}atrick and {C}abidoche, {Y}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{N}ew crop systems have been developed in the {F}rench {W}est {I}ndies that combine fallow or rotation crops with nematode-free vitro-plants to avoid the massive application of nematicides in banana fields. {I}n these new banana fields, recontamination by the burrowing nematode {R}adopholus similis can then happen either by run-off or irrigation water. {T}o understand these phenomena, we studied the vertical dissemination of {R}. similis by water leaching using soil cylinders and rainfall simulations. {S}teel drums were used to collect cylinders of soil (around 14.3 dm(3)) with a backhoe. {T}he soil cylinders were placed in an aspersion chamber, saturated with water, and a {R}. similis suspension was placed on the soil surface. {A}fterwards, rainfalls ranging from 12 to 540 mm were simulated. {N}ematodes were then extracted from different soil layers (0-5 to 20-25 cm depth) using either (i) a {S}einhorst elutriator followed by a {B}aermann funnel or (ii) centrifugation-flotation combined with {M}eldola blue staining. {R}esults showed that dissemination of {R}. similis at the scale of the decimetre in nitisoil is limited: less than 8% of the applied nematodes reached layers deeper than 10 cm after exceptional rainfalls that represent several times the poral volume of the soil. {D}issemination below 25 cm depth seemed to be limited to very few individuals, from 0.1 to 0.2%. {A}mong leached nematodes, the percentage of non-active and dead nematodes increased significantly with depth. {I}t seems that {R}. similis have developed a behaviour to escape leaching. {T}hese findings question the generally accepted idea that water dissemination of plant-parasitic nematodes is mainly a passive phenomenon.},
  keywords = {{L}eaching ; {N}ematode dissemination ; {B}urrowing nematode ; {B}anana ; {N}itisoil},
  booktitle = {},
  journal = {{A}pplied {S}oil {E}cology},
  volume = {40},
  numero = {2},
  pages = {299--308},
  ISSN = {0929-1393},
  year = {2008},
  DOI = {10.1016/j.apsoil.2008.05.004},
  URL = {https://www.documentation.ird.fr/hor/fdi:010044046},
}