Acclimation of cuttings from different willow genotypes to flooding depth level

Authors
Rodríguez, María Emilia; Doffo, Guillermo Nestor; Cerrillo, Teresa; Luquez, Virginia Martha Cristina
Publication Year
2018
Language
English
Format
article
Status
Published version
Description
Climate change will increase the frequency of extreme rain events, causing more flooding episodes. Willows are usually planted in marginal lands like flood prone areas. For willow plantations developed from rootless cuttings, the establishment phase is crucial, because the cuttings are still developing a shoot and root system and have a higher vulnerability to stress. A flooding episode during this early period may have a negative effect upon plants. We analyzed the responses to flooding of eight willow genotypes, representing important species from the economic and ecological point of view (Salix alba, S. matsudana, S. amygdaloides and S. matsudana × S. nigra hybrids). The treatments started when the plants were 2 months old and lasted for 3 weeks. They were identified as: Control (watered to field capacity); F10 (plants submerged 10 cm above soil surface) and F50 (plants submerged 50 cm above soil surface). The F50 treatment showed a greater growth reduction than the F10 treatment in most clones, either measured in height, diameter or total biomass. Both flooding treatments reduced significantly the root-to-shoot ratio compared to control plants. The F50 treatment increased the leaf nitrogen content and specific leaf area in all genotypes. Both treatments changed plant and leaf traits in different ways according to the depth of the floodwater. These changes may have lasting effects on growth recovery in the post-flooding period. Willow clones with a fast initial growth will be the best option to minimize growth reduction in areas prone to experience flooding episodes.
EEA Delta del Paraná
Fil: Rodríguez, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Instituto de Fisiología Vegetal; Argentina
Fil:Doffo, Guillermo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Instituto de Fisiología Vegetal; Argentina
Fil: Cerrillo, Teresa. INTA. Estación Experimental Agropecuaria Delta del Paraná; Argentina
Fil: Luquez, Virginia Martha Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Instituto de Fisiología Vegetal; Argentina
Source
New Forests 49 (3) : 415–427 (May 2018)
Subject
Salix
Arboles Maderables
Genotipos
Aclimatación
Inundación
Timber Trees
Genotypes
Acclimatization
Flooding
Sauce (salix)
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/2848