HOSPEDABILIDADES DE PLANTAS DANINHAS A rotylenchulus reniformis

Abstract

Rotylenchulus reniformis is associated with more than 140 plant species and among them some weed species that occur widely in the Brazilian Cerrado. Therefore, the present research sought to evaluate the hostability of R. reniformis in different weed species. The experiment was conducted in a greenhouse at IF Goiano -Campus Urutaí, in the municipality of Urutaí – Go. The experimental design was completely randomized, with eight replications; six weed species were tested: purslane Portulaca oleracea (L.), crabgrass Digitaria sanguilanis (L.), hotweed Spermacoce latifólia, castor bean Ricinus communis (L.), millet Pennisetum glaucum, and radish turnip Raphanus raphanistrum (L. ), soybean culture was considered as a control, using the Brasmax Ultra IPRO cultivar, all plant species were inoculated with the population of 780 juveniles of Rotylenchulus reniformis, diluted in 3 mL per pot. The evaluation took place 65 days after inoculation and the FR was calculated. Treatments with soybean, purslane, crabgrass, hotweed, castor bean, turnip greens and millet were susceptible to the multiplication of R. reniformis.