IDENTIFICAÇÃO DE FITONEMATOIDES EM PROPRIEDADES RURAIS DO MUNICÍPIO DE AREIA – PB

Abstract

Brazil is one of the largest exporters of agricultural products in the world producing a wide variety of agricultural products. Phytonematoids are among the major plant pathogens, attacking all crops of agronomic importance. The objective of this study was to perform soil and root sampling in several rural properties in the city of Areia - PB, to extract and identify the phytoparasite nematodes present on those areas. Fifty properties were sampled, where 12 to 20 sub-samples were collected at a depth of 0-30 cm to form composite samples with 500 g of soil and 100 g of roots. For the extraction, the technique known as centrifugal flotation in sucrose solution was used, and the nematodes were identified using an optical microscope. A great diversity of genera of phytoparasite nematodes were extracted and identified in the soil samples, with the most notable being the genus Rotylenchulus, Radopholus and Rotylenchus with higher population densities.