Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results

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In this work we report the phenological response experienced by the foliage of A. araucana seedlings to four levels of freezing temperatures (-2 ºC, -6 ºC, -10 ºC and -15ºC) induced during the active plant growth season. Nursery seedlings were exposed to different frost levels in a freezer under com...

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Autores principales: Arco Molina, Julieta Gabriela, Hadad, Martín Ariel, Gonzalez Antivilo, Francisco, Roig, Fidel Alejandro
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2015
Materias:
período de crecimiento
sensibilidad al frío
temperatura de congelamiento
norte de Patagonia
growing season
sensibility to cold
freezing temperature
northern Patagonia
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3272
Aporte de:
Revista de la Facultad de Ciencias Agrarias UNCuyo de Universidad Nacional de Cuyo
id I11-R107article-3272
record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Español
format Artículo revista
topic período de crecimiento
sensibilidad al frío
temperatura de congelamiento
norte de Patagonia
growing season
sensibility to cold
freezing temperature
northern Patagonia
spellingShingle período de crecimiento
sensibilidad al frío
temperatura de congelamiento
norte de Patagonia
growing season
sensibility to cold
freezing temperature
northern Patagonia
Arco Molina, Julieta Gabriela
Hadad, Martín Ariel
Gonzalez Antivilo, Francisco
Roig, Fidel Alejandro
Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
topic_facet período de crecimiento
sensibilidad al frío
temperatura de congelamiento
norte de Patagonia
growing season
sensibility to cold
freezing temperature
northern Patagonia
author Arco Molina, Julieta Gabriela
Hadad, Martín Ariel
Gonzalez Antivilo, Francisco
Roig, Fidel Alejandro
author_facet Arco Molina, Julieta Gabriela
Hadad, Martín Ariel
Gonzalez Antivilo, Francisco
Roig, Fidel Alejandro
author_sort Arco Molina, Julieta Gabriela
title Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
title_short Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
title_full Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
title_fullStr Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
title_full_unstemmed Leaf death in Araucaria araucana (Mol.) K. Koch seedlings due to freezing temperatures. Preliminary results
title_sort leaf death in araucaria araucana (mol.) k. koch seedlings due to freezing temperatures. preliminary results
description In this work we report the phenological response experienced by the foliage of A. araucana seedlings to four levels of freezing temperatures (-2 ºC, -6 ºC, -10 ºC and -15ºC) induced during the active plant growth season. Nursery seedlings were exposed to different frost levels in a freezer under computer control. The results showed that after three weeks of the thermal treatments, 90% of the A. araucana seedlings remained with living leaves at temperatures up to -6ºC, whereas when the temperature decreased to -10ºC or lower, the seedlings showed a variable percentage of dead leaves and even total death of the foliage. Under natural conditions, late frosts in northern Patagonia may expose seedlings of A. araucana to potentially lethal consequences. Therefore, a better understanding of the response of A. araucana to extreme low temperatures is particularly useful for interpreting forest dynamics processes and for management and conservation guidelines in relation to future climate change scenarios.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2015
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3272
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first_indexed 2022-06-20T13:53:04Z
last_indexed 2022-06-20T13:53:04Z
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