NEMATODE COMMUNITY STRUCTURE IN A VINEYARD SOIL

  • 1 January 1976
    • journal article
    • research article
    • Vol. 8  (2) , 131-137
Abstract
Distribution of the nematode community in a California [USA] vineyard was studied for 13 mo. Omnivorous and microbivorous nematodes were similarly distributed in the root zone, with greatest densities occurring between vine rows and near the soil surface. Greatest densities of plant-parasitic nematodes were found in the vine row, with the individual species differing in their vertical distribution. Total nematode biomass was greatest between rows near the surface. Biomass of plant parasites was greatest in the upper 30 cm of soil in the row, whereas biomass of microbivores was greatest in this region between rows. Of the plant-parasitic nematodes, the variability in distribution among vines was greatest for Paratylenchus hamatus and least for Meloidogyne spp.

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