Reproduction and symptoms caused by <i>Meloidogyne enterolobii</i> and <i>Meloidogyne incognita</i> in soybean

Abstract

The objective of this work was to evaluate the reproduction of Meloidogyne enterolobii and Meloidogyne incognita and the caused symptoms in two soybean (Glycine max) cultivars under different inoculum concentrations. Two greenhouse experiments were conducted using the M7198IPRO (moderately resistant to M. incognita) and IMA 731 IPRO (susceptible to M. incognita) soybean cultivars. Each plant was inoculated with 0, 300, 1,000, 3,000, 9,000, and 27,000 nematodes from both species. Meloidogyne enterolobii causes a more severe root galling in soybean plants and also exhibits a higher reproduction rate on soybean roots. Therefore, this species overcomes the resistance found in soybean cultivars that are moderately resistant to M. incognita.