Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth

Although the morphological and physiological responses of willows to flooding have already been characterized, less is known about their responses during the post- flooding period. After the end of the stress episode, plants may modify some leaf and plant traits to compensate for biomass loss. The a...

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Autores principales: Doffo, Guillermo N., Rodríguez, María Emilia, Olguín, Flavia Yesica, Cerrillo, Teresa, Luquez, Virginia Martha Cristina
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Agrarias
Relative growth rate
Root-to-shoot ratio
Leaf nitrogen concentration
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86462
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86462
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Relative growth rate
Root-to-shoot ratio
Leaf nitrogen concentration
spellingShingle Ciencias Agrarias
Relative growth rate
Root-to-shoot ratio
Leaf nitrogen concentration
Doffo, Guillermo N.
Rodríguez, María Emilia
Olguín, Flavia Yesica
Cerrillo, Teresa
Luquez, Virginia Martha Cristina
Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
topic_facet Ciencias Agrarias
Relative growth rate
Root-to-shoot ratio
Leaf nitrogen concentration
description Although the morphological and physiological responses of willows to flooding have already been characterized, less is known about their responses during the post- flooding period. After the end of the stress episode, plants may modify some leaf and plant traits to compensate for biomass loss. The aim of this work was to analyze the post-flooding responses of different willow genotypes under two different depths of floodwater. The hypothesis was that the growth recovery in the post-flooding period would be different according to the genotype and the floodwater depth. We analyzed three genotypes of five willow families (4 interspecific hybrids and one open-pollinated family). The treatments were: 1) Control: plants watered to field capacity; 2) T10: water covering 10 cm above soil level; 3) T65: water covering 65 cm above soil level. Both flooding treatments were followed by a period of recovery (without flooding). Growth was reduced by flooding in T65 but not in T10, while root-to-shoot ratio was reduced in both flooding treatments. The relative growth rate in height, leaf nitrogen concentration, stomatal conductance and electron transport rate changed in a different manner during the post-flooding period, depending on the treatment and genetic background. These results emphasize the need for evaluating a post - flooding recovery period for the breeding of willow genotypes destined for areas under risk of flooding. According to our results, Salix matsudana could be a source of flooding tolerance for willow breeding programs.
format Articulo
Preprint
author Doffo, Guillermo N.
Rodríguez, María Emilia
Olguín, Flavia Yesica
Cerrillo, Teresa
Luquez, Virginia Martha Cristina
author_facet Doffo, Guillermo N.
Rodríguez, María Emilia
Olguín, Flavia Yesica
Cerrillo, Teresa
Luquez, Virginia Martha Cristina
author_sort Doffo, Guillermo N.
title Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
title_short Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
title_full Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
title_fullStr Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
title_full_unstemmed Resilience of willows (<i>Salix</i> spp.) differs between families during and after flooding according to floodwater depth
title_sort resilience of willows (<i>salix</i> spp.) differs between families during and after flooding according to floodwater depth
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/86462
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