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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Relationship between forest residue management and micronutrient fertilization with eucalyptus rust severity in Eucalyptus grandis plantations

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Author(s):
Masullo, Liamara Santos [1] ; Ferraz, Alexandre de Vicente [2] ; de Moraes Goncalves, Jose Leonardo [1] ; Aranha Camargo, Luis Eduardo [1] ; de Avila, Patricia Andressa [1] ; Drago, Jose Renato [3] ; Esteves, Oscar [4] ; dos Santos Dias, Carlos Tadeu [1]
Total Authors: 8
Affiliation:
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Piracicaba, SP - Brazil
[2] Inst Forest Res & Study IPEF, Piracicaba, SP - Brazil
[3] ArcelorMittal Biofiorestas LTDA, Martinho Campos, MG - Brazil
[4] Bracell Bahia Florestal LTDA, Alagoinhas, BA - Brazil
Total Affiliations: 4
Document type: Journal article
Source: FOREST ECOLOGY AND MANAGEMENT; v. 475, NOV 1 2020.
Web of Science Citations: 0
Abstract

The average loss of stem growth caused by eucalyptus rust (Austropuccinia psidii) is 20% in Brazil. Micronutrients can affect the defense mechanisms of plants, such as the production of lignin, phenols, phytoalexins, and other defense molecules. Micronutrients are used in several production pathways of these molecules as cofactors and enzymatic activators. The epidemiology of eucalyptus rust was studied in a Eucalyptus grandis plantation with micronutrient fertilization (B, Cu, and Zn) associated with the removal or maintenance of forest residues from wood harvest, and was compared between 6 and 12 months of age. Regardless of treatment, the loss due to rust was 60% of stem volume. The forest residue management did not affect the severity of eucalyptus rust. The omission of Zn increased the Cu foliar contents and reduced the eucalyptus rust severity. Cu leaf contents showed a strong negative correlation with rust severity. Thus, nutrition was related to the severity of eucalyptus rust, emphasizing the importance of an adequate supply of Cu to reduce the susceptibility of E. grandis. (AU)

FAPESP's process: 18/07294-3 - B, Cu and Zn fertilization and forest residues management in eucalyptus plantations
Grantee:Liamara Santos Masullo
Support Opportunities: Scholarships in Brazil - Doctorate