Parasitic fitness and ability to produce conidia of propiconazole less-sensitive isolates of Mycosphaerella fijiensis, causal agent of black Sigatoka disease of banana.

Abstract:

Ten isolates of M. fijiensis with different EC50 values to the fungicide propiconazole were inoculated onto the youngest open leaf of small banana plants, using six plants per isolate as replications, and three runs have been conducted, using a different set of isolates with a range of sensitivities to propiconazole. Based on the results of the disease severity caused by these thirty isolates, no evidence has been observed of a relationship between the degree of resistance or sensitivity to propiconazole, and the parasitic fitness of the isolates. Similarly, in vitro studies to determine any relationship between the acquisition of resistance to the fungicide propiconazole by isolates of M. fijiensis, and their ability to produce conidia, have shown no correlation between these two factors, with 21 isolates tested

Año de publicación:

1997

Keywords:

Fuente:

google