Influencia del evento "el niño 1997-98" en el desarrollo de ismene amancaes (Amaryllldaceae, Llliopsidae)

Silvia Agüero, Mery Suni

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

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The beginning of humidity months in the "lomas" is in June, in normal climatic conditions. The bulblet species Ismene amanea es is one ofthe first in germinate in relation to others herbaceous species, that is the reason it is considered an indicator of the beginning of humidity in the "lomas". The present work achieved in National Reserve of Lachay, Prov. Huaura, Dpto. lima, present records among July of 1997 and May of 1998. The periodíc evaluatíon in situ of seedlings let to determine the foliage area variation, number of leaves, diameter and high ofthe bulb neck. Also, it was quantified the soil humídíty. The cycle phase was registered in adults plants. A relation of humíd months delay in "lomas" (August of 1997) and its last unti11998, was made. The f1uctuating temperature and humidíty recorded during "El Niño" had a consequence in rapídly development of specimens. The seedlings showed the bígger folíage area at the beginning of September (83,9 cm2 by plant) and was díminishing through October in direct relation with soil humidity. The 30% of adults plants flowered and only 40% of these complete the fructification, diminishing their capacity of sexual spread out. The increase of soil humidity, in the following months, did not have influence in germinaban of the plant against others species which restart or extended their cycle.

Título traducido de la contribuciónEffect of "el niño 1997-98" event in the development of ismene amanea es (Amaryllldaceae, Lillopsidae)
Idioma originalEspañol
Páginas (desde-hasta)118-124
Número de páginas7
PublicaciónRevista Peruana de Biologia
EstadoPublicada - 1999
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© Facultad de Ciencias Bioĺgicas UNMSM.

Palabras clave

  • Amancaes
  • Amaryllidaceae
  • El niño
  • Ismene amancaes
  • Lachay


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