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The developmental threshold temperature and effective accumulated temperature of Oreta pulchripes

Yan-Jun Huang

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Abstract

The developmental duration,developmental threshold temperature(DTT) and effective accumulated temperature(EAT) of Oreta pulchripes were studied at five constant temperatures.The results showed the egg,larva,pupa and adult could normally develop at the temperatures between 16 ℃ and 28 ℃ and the development duration shortened with the increase of the temperature.The DTT of egg,larva,pupa,adult and the whole generation were(8.28±1.27),(8.47±1.33),(7.20±1.12),(10.70±0.97),(8.40±0.46)℃ respectively and their EAT were(85.39±7.58),(223.40±20.94),(131.91±9.60),(62.98±5.08),(507.97±16.53) day-degrees respectively.Based on that,it was concluded that Oreta pulchripes had about 7 generations a year in Suzhou.The results were according with the actual situation.

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What this paper is about

The developmental duration,developmental threshold temperature(DTT) and effective accumulated temperature(EAT) of Oreta pulchripes were studied at five constant temperatures.The results showed the egg,larva,pupa and adult could normally develop at the temperatures between 16 ℃ and 28 ℃ and the development duration shortened with the increase of the temperature.The DTT of egg,larva,pupa,adult and the whole generation were(8.28±1.27),(8.47±1.33),(7.20±1.12),(10.70±0.97),(8.40±0.46)℃ respectively and their EAT were(85.39±7.58),(223.40±20.94),(131.91±9.60),(62.98±5.08),(507.97±16.53) day-degrees respectively.Based on that,it was concluded that Oreta pulchripes had about 7 generations a year in Suzhou.The results were according with the actual situation.

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Available abstract

The developmental duration,developmental threshold temperature(DTT) and effective accumulated temperature(EAT) of Oreta pulchripes were studied at five constant temperatures.The results showed the egg,larva,pupa and adult could normally develop at the temperatures between 16 ℃ and 28 ℃ and the development duration shortened with the increase of the temperature.The DTT of egg,larva,pupa,adult and the whole generation were(8.28±1.27),(8.47±1.33),(7.20±1.12),(10.70±0.97),(8.40±0.46)℃ respectively and their EAT were(85.39±7.58),(223.40±20.94),(131.91±9.60),(62.98±5.08),(507.97±16.53) day-degrees respectively.Based on that,it was concluded that Oreta pulchripes had about 7 generations a year in Suzhou.The results were according with the actual situation.

Key concepts: Pupa, Biology, Larva, Animal science, Maximum temperature, Ecology, Atmospheric sciences, Geology

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