Photoperiodic summation is temperature-dependent inPyrrhocoris apterus (L.) (Heteroptera)

  title={Photoperiodic summation is temperature-dependent inPyrrhocoris apterus (L.) (Heteroptera)},
  author={Magdal{\'e}na Hodkov{\'a} and L. Hodek},
InPyrrhocoris apterus, a low temperature, 15°C, prevented the termination of diapause by long days and, unexpectedly, also the induction of diapause by short days. Both responses were enabled at a higher temperature, 26°C. In contrast to current concepts, it was proved that the summation of photoperiodic signals was temperature-dependent, since the morphogenetic development was prevented by starvation. 

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Diapause and Life Cycle Strategies in Insects , p . 33

  • I. Hodek
  • 1982

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