Effects of interaction between arbuscular mycorrhizal fungus (AMF) and nematode Meloidogyne javanica in plants of passion fruit (Passiflora ligularis)

Abstract

Greenhouse bioassays were carried out to determine the effects of interaction between arbuscular mycorrhizal fungus (AMF) and nematode Meloidogyne javanica in plants of passion fruit (Passiflora ligularis).To this end, we using a randomized complete design, with five treatments and seven experimental units by treatment. Which they consisted of the combination of two inoculums from HMA one comercial and Glomus mosseae, with inoculum of 5,000 eggs from M. javanica, and their controls. As a response variable, shoot dry matter, mycorrhizal colonization of roots, reproduction factor of M. javanica and gall index were measured at harvesting time. The results indicate that exits significant differences in the mass of passion fruit between treatments inoculated with AMF against other treatments; the same trend was evident in the mycorrhizal colonization. Nodulation was observed in root from treatments with M. javanica. In this research, we found that Passion fruit seedlings respond better to Glomus mosseae inoculation, reducing the negative effect of the nematode on biomass production. The data suggest the importance of the AMF in the nursery phase passion fruit, which would allow increased biomass, uptake P, and seedling tolerance to nematodes from Meloidogyne genera's.