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Lesion nematode (Pratylenchus spp.) infection of weed species and fieldbeans (Phaseolus vulgaris)

By: Contributor(s): Material type: ArticleArticleLanguage: English Description: 32(5):616-620Subject(s): LOC classification:
  • 26264
In: Weed Science (USA)Summary: Se realizaron investigaciones de campo durante los veranos de 1981 y 1982 para determinar la infeccion relativa y el incremento de la poblacion del nematodo de las lesiones radicales (Pratylenchus spp.) en 7 especies de malezas que comunmente ocurren en los campos de Phaseolus vulgaris en el oeste de Nebraska (EE.UU.). Las malezas se cultivaron en 3 densidades, con y sin P. vulgaris. No se encontraron diferencias en la tasa de infeccion del nematodo entre los niveles de poblacion de malezas. El no. de nematodos/g de raiz seca no se diferencio en las malezas cultivadas con o sin P. vulgaris. Hubo una diferencia significativa entre la mayoria de las especies de malezas cuando se estimaron los nematodos/g de raiz seca. (RA (extracto)-CIAT)Summary: Field research was conducted during the summers of 1981 and 1982 in order to determine relative infection and population increase of lesion nematodes (Pratylenchus spp.) on 7 weed species that commonly occur in Phaseolus vulgaris fields in western Nebraska (USA). Weeds were grown at 3 densities, with and without P. vulgaris. no difference in nematode infection rate was found among weed population levels. Nematodes/g dry root were not different in weeds grown with or without P. vulgaris. There was a significant difference among most weed species when nematodes/g dry root were estimated. (AS (extract))
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Se realizaron investigaciones de campo durante los veranos de 1981 y 1982 para determinar la infeccion relativa y el incremento de la poblacion del nematodo de las lesiones radicales (Pratylenchus spp.) en 7 especies de malezas que comunmente ocurren en los campos de Phaseolus vulgaris en el oeste de Nebraska (EE.UU.). Las malezas se cultivaron en 3 densidades, con y sin P. vulgaris. No se encontraron diferencias en la tasa de infeccion del nematodo entre los niveles de poblacion de malezas. El no. de nematodos/g de raiz seca no se diferencio en las malezas cultivadas con o sin P. vulgaris. Hubo una diferencia significativa entre la mayoria de las especies de malezas cuando se estimaron los nematodos/g de raiz seca. (RA (extracto)-CIAT) spa

Field research was conducted during the summers of 1981 and 1982 in order to determine relative infection and population increase of lesion nematodes (Pratylenchus spp.) on 7 weed species that commonly occur in Phaseolus vulgaris fields in western Nebraska (USA). Weeds were grown at 3 densities, with and without P. vulgaris. no difference in nematode infection rate was found among weed population levels. Nematodes/g dry root were not different in weeds grown with or without P. vulgaris. There was a significant difference among most weed species when nematodes/g dry root were estimated. (AS (extract)) eng

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