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首页> 外文期刊>Indian Journal of Entomology >Seasonal occurrence of adult diapause in Galerucella placida baly (Chrysomelidae: coleoptera)
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Seasonal occurrence of adult diapause in Galerucella placida baly (Chrysomelidae: coleoptera)

机译：Seasonal occurrence of adult diapause in Galerucella placida baly (Chrysomelidae: coleoptera)

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摘要

An experiment was conducted in the laboratory of Department of Entomology, College of Agriculture, Central Agricultural University, Imphal during 2017–2018 to study the seasonal occurrence of adult diapause in Galerucella placida Baly based on feeding and oviposition behaviour. It was observed that the induction of diapause based on feeding behaviour commenced from first fortnight of October, 2017 onwards which was 9.00% and increased gradually and complete diapause reached by the end of December, 2017 (100% from second fortnight of November to second fortnight of December, 2017). Based on oviposition the initiation of diapause was observed from first fortnight of October onwards, which accounted for 39% and complete diapause reached by the end ofDecember (100% from first fortnight of November to second fortnight of December). Maximum (r=-0.603**) and minimum temperature (r=-0.583**) were observed to be negatively correlated with diapause based on feeding whereas minimum temperature (r=0.573**) had a significant positive relationship as seen with oviposition.

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