Evolution of canker severity and stem quality on African mahogany growth

Abstract The objective of this work was to investigate the influence of the qualitative traits canker severity and stem quality on the mean annual increment (MAI) in diameter, total height, and stem height of an African mahogany (Khaya grandifoliola) stand. The study area is located in the state of...

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Main Authors: Andressa Ribeiro, Maurício Sangiogo, Rodolfo Molinário de Sousa, Antonio Carlos Ferraz Filho
Format: Article
Language:English
Published: Embrapa Informação Tecnológica 2023-12-01
Series:Pesquisa Agropecuária Brasileira
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2023000105100&lng=en&tlng=en
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author Andressa Ribeiro
Maurício Sangiogo
Rodolfo Molinário de Sousa
Antonio Carlos Ferraz Filho
author_facet Andressa Ribeiro
Maurício Sangiogo
Rodolfo Molinário de Sousa
Antonio Carlos Ferraz Filho
author_sort Andressa Ribeiro
collection DOAJ
description Abstract The objective of this work was to investigate the influence of the qualitative traits canker severity and stem quality on the mean annual increment (MAI) in diameter, total height, and stem height of an African mahogany (Khaya grandifoliola) stand. The study area is located in the state of Minas Gerais, Brazil, where continuous forest inventories were conducted over six years for data collection. Given the nonparametric characteristic of the data, an aligned rank transform analysis of variance was performed for each factor, and the averages were compared by Dunn’s multiple test. There was no significant effect of the interaction between the classes of canker severity and stand age. Increased canker severity has a significant effect on MAI values, causing reductions of 13% in diameter, 11% in total height, and 21% in stem height in trees from the highest canker severity class, when compared with the healthy ones. Age interacts significantly with stem quality, and MAI values tend to be similar in younger trees, differing over time in the oldest ones. In addition, the highest MAI values are recorded in trees with the best stem classification.
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spelling doaj.art-ff94ca3b5ef8493f9b12df91a67704482023-12-05T07:58:45ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212023-12-015810.1590/s1678-3921.pab2023.v58.03380Evolution of canker severity and stem quality on African mahogany growthAndressa Ribeirohttps://orcid.org/0000-0002-8923-1395Maurício Sangiogohttps://orcid.org/0000-0003-0465-5023Rodolfo Molinário de Sousahttps://orcid.org/0000-0001-7346-8032Antonio Carlos Ferraz Filhohttps://orcid.org/0000-0001-9178-918XAbstract The objective of this work was to investigate the influence of the qualitative traits canker severity and stem quality on the mean annual increment (MAI) in diameter, total height, and stem height of an African mahogany (Khaya grandifoliola) stand. The study area is located in the state of Minas Gerais, Brazil, where continuous forest inventories were conducted over six years for data collection. Given the nonparametric characteristic of the data, an aligned rank transform analysis of variance was performed for each factor, and the averages were compared by Dunn’s multiple test. There was no significant effect of the interaction between the classes of canker severity and stand age. Increased canker severity has a significant effect on MAI values, causing reductions of 13% in diameter, 11% in total height, and 21% in stem height in trees from the highest canker severity class, when compared with the healthy ones. Age interacts significantly with stem quality, and MAI values tend to be similar in younger trees, differing over time in the oldest ones. In addition, the highest MAI values are recorded in trees with the best stem classification.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2023000105100&lng=en&tlng=enKhaya grandifoliolaforest managementforest protectionsilviculture
spellingShingle Andressa Ribeiro
Maurício Sangiogo
Rodolfo Molinário de Sousa
Antonio Carlos Ferraz Filho
Evolution of canker severity and stem quality on African mahogany growth
Pesquisa Agropecuária Brasileira
Khaya grandifoliola
forest management
forest protection
silviculture
title Evolution of canker severity and stem quality on African mahogany growth
title_full Evolution of canker severity and stem quality on African mahogany growth
title_fullStr Evolution of canker severity and stem quality on African mahogany growth
title_full_unstemmed Evolution of canker severity and stem quality on African mahogany growth
title_short Evolution of canker severity and stem quality on African mahogany growth
title_sort evolution of canker severity and stem quality on african mahogany growth
topic Khaya grandifoliola
forest management
forest protection
silviculture
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2023000105100&lng=en&tlng=en
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AT mauriciosangiogo evolutionofcankerseverityandstemqualityonafricanmahoganygrowth
AT rodolfomolinariodesousa evolutionofcankerseverityandstemqualityonafricanmahoganygrowth
AT antoniocarlosferrazfilho evolutionofcankerseverityandstemqualityonafricanmahoganygrowth