Efecto de la Temperatura de Cria e Intensidad de Infestacion Sobre los Caracteres Morfometricos de Heterorhabditis bacteriophora. Analisis de Variabilidad

Authors

  • M. M. A. de Doucet
  • M. E. Doucet
  • M. A. Bertolotti

Keywords:

Density-Dependent Factors, Entomogenous Nematode, Galleria Mellonella, Heterorhabditis bacteriophora, Infestation Level, Morphometric Variability, Temperature

Abstract

The variability of morphometric characters of the entomogenous nematode H. bacteriophora was studied. The effects of temperature (20 and 30 C) and infestation intensity (low = 1-10 larvae per host and high = 100-150 larvae per host) were evaluated. The life stages considered were: hermaphrodite, male, female, and infective larva (3rd stage). In general, the variability observed was low, particularly in infective larvae and males. No correlation between the degree of variability of morphometric characters and the treatments was detected. Morphometric characters were influenced by the factors considered separately or combined. Their influence was greater on females, which had higher variability in morphometric characters. It is suspected that various environmental factors and growth conditions may influence variability of the studied characters.

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Published

1991-06-01

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Section

Articles