Variabilidade fisiológica em popula？？es de 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.