Variabilidade fisiológica em populações de Meloidogyne paranaensis

Abstract

Physiological variability of two populations of Meloidogyne paranaensis Two populations of Meloidogyne paranaensis, one from soybean plants (Mp-s) and another from coffee plants (Mp-c) were studied to compare their ability in reproducing on different hosts. Mp-s was able to reproduce more than Mp-c on tomato plants and on two soybean cultivars, but Mp-c showed a higher reproduction factor on coffee plants. On tomato ‘Santa Clara’, both populations reproduced significantly more than on other hosts, but no difference was detected between the soybean cultivars ‘MS/BR 34’ and ‘Fepagro RS 10’. However, a larger number of populations should be studied. Additional keywords: Glycine max, host, virulence of population, root-knot nematode.