Influence of fertilization and water deficit on the density and anatomical characteristics of Eucalyptus grandis wood

Franco Mariana Pirès, Silva Maria Fernanda Felippe, Prates Glaucia Aparecida, Gali Lesley Carina do Lago Attadia, Caraschi José Cláudio, Savi Antônio Francisco, Chaix Gilles, Tomazello Filho Mario. 2024. Influence of fertilization and water deficit on the density and anatomical characteristics of Eucalyptus grandis wood. Caderno Pedagógico, 21 (1) : 373-338.

https://doi.org/10.54033/cadpedv21n1-018

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Titre portugais : Influência da fertilização e do déficit hídrico na densidade e características anatômicas da madeira de eucalyptus grandis

Résumé : The expansion of plantations may be compromised by climate change, altering the frequency and intensity of precipitation. This study aimed to evaluate the influence of potassium and sodium fertilization and water deficit on the apparent density property and anatomical characteristics of Eucalyptus grandis wood. Six treatments varying in fertilization and rainfall incidence were evaluated. Apparent density testing was conducted via X-ray, while the anatomical features of fibers and vessels were examined through image analysis using a polarized light microscope. Cartography was also performed to map the density variation along the trunk in longitudinal and radial directions. Trees without fertilization exhibited higher apparent density, whereas those with partial rain exclusion displayed less homogeneous wood. Overall, treatments involving potassium and sodium showed no significant difference between them and resulted in a thinner secondary wall. The results indicate that water deficit and fertilization methods significantly impact wood properties.

Mots-clés Agrovoc : Eucalyptus grandis, changement climatique, propriété technologique, potassium, déficit pluviométrique, Eucalyptus, propriété mécanique, engrais potassique, anatomie végétale, adaptation aux changements climatiques, densité, fertilisation, stress dû à la sécheresse

Mots-clés géographiques Agrovoc : Brésil, Sao Paulo

Mots-clés libres : Wood Quality, Drought effects, Apparent density, Anatomical properties, Potassium, Sodium

Classification Agris : K10 - Production forestière
F04 - Fertilisation
H50 - Troubles divers des plantes

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Agences de financement hors UE : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Comité Français d'Evaluation de la Coopération Universitaire et Scientifique avec le Brésil, Centre de Coopération Internationale en Recherche Agronomique pour le Développement

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