| dc.description.abstract | The purpose of this study was to evaluate the relatioship between diseases severity and population density of nematodes on the root samples of three degree of the diseases severity of coffee plants, those are healthy, moderatly, and heavy disease. Lesion nematodes, Prarylenchus spp. and Root-gall nematode, Meloidogyne spp. are widely distributed with high prevalence throughout the growing area in all of the -. Division of PT Indoarabica ~artgkuraja coffee plantations, Bengk!llu, Sumatera island. Surveys to investigate the distribution ofthese two kaind of nematodes were carried out during the three weeks of August 2009. R&t and soil rhizosfeer of coffee samples taken and brough to Nematology Laboratory Departeman of Plant Proiection, Faculty of Agricultural, Bogor Agicultural Institute for processing. Nematodes were extracted. from the root samples by Baermann funnel technique in mistificr camber. Genera of nematodes were examined for their morfological caracters. | id |
