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Número de ciclos cortos necesarios para inducir la diapausa en huevos y larvas de Sesamia nonagrioides (Lefebvre)
López Alonso, Carmen; Sans i Badia, Albert; Eizaguirre Altuna, Matilde
Se sometieron huevos de Sesamia nonagrioides (LEFEBVRE) durante su desarrolloembrionario a fotoperiodo corto 12:12 (L:O) y posteriormente a fotoperiodos 16:8 y0:24, sin observar que se hubiera inducido diapausa en ellos. Las larvas neonatas sometidas a 1, 2, 3, 4 ó 5 ciclos cortos (12:12) no manifestaron diferencias en la duración del desarrollo respecto de las larvas sometidas a fotoperiodo 16:8 y por tanto no manifestaron diapausa. Las diferencias de desarrollo se manifestaron cuando las larvas neonatas se sometieron a 8 ó más ciclos cortos (12:12), por lo tanto, fueron necesarios 8 ó mas ciclos cortos para inducir la diapausa en las larvas neonatas.
Sesamia nonagrioides eggs were submitted during their embryonic development toshort photoperiodic cycles (12:12) and after that to long photoperiodic cycles (16:8) and0:24 without observing diapause induction in them. Neonate larvae submitted to 1,2, 3, 4 or 5 short cycles (12:12) didn't show differences in duration of development withregard to the larvae submitted to 16:8. Hence, they didn't show diapause induction. Differences in the duration of development were shown when neonate larvae were submitted to 8 or more short cycles. So, 8 or more short cycles were needed to induce diapause in neonate larvae.
2012-09-26
Sesamia nonagrioides
Diapausa
Inducción
Fotoperiodo
Lepidòpters
Blat de moro -- Malalties i plagues
(c) Espanya. Ministerio de Medio Ambiente y Medio Rural y Marino, 2000
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Espanya. Ministerio de Medio Ambiente y Medio Rural y Marino
         

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