Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions

Populus deltoides is an important forest tree, with elite genotypes propagated mainly as unrooted dormant cuttings. Several areas where P. deltoides is planted periodically experience flooding episodes. The aims of this work were to analyze the early rooting capability and flooding tolerance of a P....

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Autores principales: Rodríguez, María Emilia, Mozo, Irina, Cortizo, Silvia, Cappa, Eduardo, Luquez, Virginia Martha Cristina
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Agrarias
Eastern cottonwood
greenhouse cuttings
early rooting
narrow sense heritability
genetic correlation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131830
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131830
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
Eastern cottonwood
greenhouse cuttings
early rooting
narrow sense heritability
genetic correlation
spellingShingle Ciencias Agrarias
Eastern cottonwood
greenhouse cuttings
early rooting
narrow sense heritability
genetic correlation
Rodríguez, María Emilia
Mozo, Irina
Cortizo, Silvia
Cappa, Eduardo
Luquez, Virginia Martha Cristina
Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
topic_facet Ciencias Agrarias
Eastern cottonwood
greenhouse cuttings
early rooting
narrow sense heritability
genetic correlation
description Populus deltoides is an important forest tree, with elite genotypes propagated mainly as unrooted dormant cuttings. Several areas where P. deltoides is planted periodically experience flooding episodes. The aims of this work were to analyze the early rooting capability and flooding tolerance of a P. deltoides full-sib family, and to identify growth, wood, and leaf traits correlating with flooding tolerance. We analyzed the early rooting capability of the parental genotypes and 30 clones from their F1 under greenhouse conditions. The rooting percentage of the cuttings ranged from 50 to 100%. There was a positive genetic correlation between shoot weight and root traits (number, biomass and total length). In a separate experiment, 2-month-old plants growing in pots from the same genotypes were subjected to two treatments: watered (control) and flooded for 35 days. Most genotypes showed an intermediate flooding tolerance with respect to the parental clones. Height, diameter, growth rate, biomass, plant leaf area, leaf number and leaf increase rate had a positive phenotypic correlation with flooding tolerance, while wood density did not. Height and diameter are traits recommended for selection because they correlate with flooding tolerance, are easy to measure, and have moderate to high narrow sense heritability.
format Articulo
Preprint
author Rodríguez, María Emilia
Mozo, Irina
Cortizo, Silvia
Cappa, Eduardo
Luquez, Virginia Martha Cristina
author_facet Rodríguez, María Emilia
Mozo, Irina
Cortizo, Silvia
Cappa, Eduardo
Luquez, Virginia Martha Cristina
author_sort Rodríguez, María Emilia
title Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
title_short Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
title_full Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
title_fullStr Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
title_full_unstemmed Early rooting and flooding tolerance in cuttings from a <i>Populus deltoides</i> full-sib family under greenhouse conditions
title_sort early rooting and flooding tolerance in cuttings from a <i>populus deltoides</i> full-sib family under greenhouse conditions
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/131830
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