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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
08/06/2022 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATTOS, P. P. de; CURTO, R. de A.; BRAZ, E. M.; NETTO, S. P. |
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Afiliação: |
PATRICIA POVOA DE MATTOS, CNPF; RAFAELLA DE ANGELI CURTO, Federal Rural University of Rio de Janeiro; EVALDO MUNOZ BRAZ, CNPF; SYLVIO PÉLLICO NETTO, Federal University of Paraná. |
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Título: |
How do Araucaria angustifolia trees grow in overstocked stands? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Dendrochronologia, v. 74, 125976, 2022. |
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Páginas: |
12 p. |
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DOI: |
https://doi.org/10.1016/j.dendro.2022.125976 |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some trees as they outgrew their competition. MenosABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some... Mostrar Tudo |
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Palavras-Chave: |
Anel de crescimento; Competição; Competition; Haste; Missing ring; Stem analysis; Thinning effect. |
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Thesagro: |
Araucária Angustifólia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02320naa a2200277 a 4500
001 2143840
005 2022-06-08
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.dendro.2022.125976$2DOI
100 1 $aMATTOS, P. P. de
245 $aHow do Araucaria angustifolia trees grow in overstocked stands?$h[electronic resource]
260 $c2022
300 $a12 p.
520 $aABSTRACT. The objective of this study was to evaluate growth along the stem of Araucaria angustifolia (Bertol.) Kuntze trees competing in overstocked stands, in order to identify periods when growth and trunk shape are differentiated during the trees' lifespan. The research was carried out in a planted forest of Araucaria angustifolia established in 1946 in the Açungui National Forest in Campo Largo, Paraná, Brazil, when these trees were 65 years old. One thinning was recorded, at some time between 1970 and 1980. Forty-six trees were selected and divided into three development classes (DC) at 65 years of age; these classes considered diameter at 1.30 m (breast height, dbh) with a range of 20 cm (from 10 cm to 70 cm). In addition to dbh, total tree height, and crown height and diameter were measured in the field. From each tree, 14 disks were removed to analyze growth rings and confirm the age of the stand. Some trees in the smallest DC (10 ≤ dbh < 30 cm) were the product of natural regeneration (younger trees that grew after the initial planting). In 63% of the trees, at least one growth ring was missing at breast height. Missing rings at breast height were more common in trees with smaller dbh and crown diameters. The need for more growing space was observed at different periods during the studied lifespan of the trees from three DCs. It resulted in changes in stems shape from conical to cylindrical. Different growth patterns could be observed during the lives of some trees as they outgrew their competition.
650 $aAraucária Angustifólia
653 $aAnel de crescimento
653 $aCompetição
653 $aCompetition
653 $aHaste
653 $aMissing ring
653 $aStem analysis
653 $aThinning effect
700 1 $aCURTO, R. de A.
700 1 $aBRAZ, E. M.
700 1 $aNETTO, S. P.
773 $tDendrochronologia$gv. 74, 125976, 2022.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/07/2013 |
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Data da última atualização: |
28/11/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CABREIRA, C.; CAGLIARI, A.; BÜCKER-NETO, L.; WIEBKE-STROHM, B.; FREITAS, L. B. de; MARCELINO-GUIMARÃES, F. C.; NEPOMUCENO, A. L.; MARGIS-PINHEIRO, M. M. A. N.; BODANESE-ZANETTINI, M. H. |
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Afiliação: |
CAROLINE CABREIRA, UFRGS; ALEXANDRO CAGLIARI, UFRGS; LAURO BÜCKER-NETO, UFRGS; BEATRIZ WIEBKE-STROHM, UFRGS; LORETA B. DE FREITAS, UFRGS; FRANCISMAR CORREA MARCELINO-GUIMARÃES, CNPSO; ALEXANDRE LIMA NEPOMUCENO, SRI; MÁRCIA M. A. N. MARGIS-PINHEIRO, UFRGS; MARIA H. BODANESE-ZANETTINI, UFRGS. |
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Título: |
The lesion simulating disease (LSD) gene family as a variable in soybean response to Phakopsora pachyrhizi infection and dehydration. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Functional & Integrative Genomics, v. 13, n. 3, p. 323-338, Aug. 2013. |
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DOI: |
10.1007/s10142-013-0326-3 |
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Idioma: |
Inglês |
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Conteúdo: |
The Lesion Simulating Disease (LSD) genes encode a family of zinc finger proteins that are reported to play an important role in the hypersensitive response and programmed cell death (PCD) that are caused by biotic and abiotic stresses. In the present study, 117 putative LSD family members were identified in Viridiplantae. Genes with one, two, or three conserved LSD domains were identified. Proteins with three LSD domains were highly represented in the species analyzed and were present in basal organisms. Proteins with two LSD domains were identified only in the Embryophyte clade, and proteins possessing one LSD domain were highly represented in grass species. Expression analyses of Glycine max LSD (GmLSD) genes were performed by real-time quantitative polymerase chain reaction. The results indicated that GmLSD genes are not ubiquitously expressed in soybean organs and that their expression patterns are instead organ-dependent. The expression of the majority of GmLSD genes is modulated in soybean during Phakopsora pachyrhizi infection. In addition, the expression of some GmLSD genes is modulated in plants under dehydration stress. These results suggest the involvement of GmLSD genes in the response of soybean to both biotic and abiotic stresses. |
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Thesagro: |
Doença de planta; Soja. |
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Thesaurus NAL: |
Plant diseases and disorders; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02181naa a2200277 a 4500
001 1961866
005 2013-11-28
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s10142-013-0326-3$2DOI
100 1 $aCABREIRA, C.
245 $aThe lesion simulating disease (LSD) gene family as a variable in soybean response to Phakopsora pachyrhizi infection and dehydration.$h[electronic resource]
260 $c2013
520 $aThe Lesion Simulating Disease (LSD) genes encode a family of zinc finger proteins that are reported to play an important role in the hypersensitive response and programmed cell death (PCD) that are caused by biotic and abiotic stresses. In the present study, 117 putative LSD family members were identified in Viridiplantae. Genes with one, two, or three conserved LSD domains were identified. Proteins with three LSD domains were highly represented in the species analyzed and were present in basal organisms. Proteins with two LSD domains were identified only in the Embryophyte clade, and proteins possessing one LSD domain were highly represented in grass species. Expression analyses of Glycine max LSD (GmLSD) genes were performed by real-time quantitative polymerase chain reaction. The results indicated that GmLSD genes are not ubiquitously expressed in soybean organs and that their expression patterns are instead organ-dependent. The expression of the majority of GmLSD genes is modulated in soybean during Phakopsora pachyrhizi infection. In addition, the expression of some GmLSD genes is modulated in plants under dehydration stress. These results suggest the involvement of GmLSD genes in the response of soybean to both biotic and abiotic stresses.
650 $aPlant diseases and disorders
650 $aSoybeans
650 $aDoença de planta
650 $aSoja
700 1 $aCAGLIARI, A.
700 1 $aBÜCKER-NETO, L.
700 1 $aWIEBKE-STROHM, B.
700 1 $aFREITAS, L. B. de
700 1 $aMARCELINO-GUIMARÃES, F. C.
700 1 $aNEPOMUCENO, A. L.
700 1 $aMARGIS-PINHEIRO, M. M. A. N.
700 1 $aBODANESE-ZANETTINI, M. H.
773 $tFunctional & Integrative Genomics$gv. 13, n. 3, p. 323-338, Aug. 2013.
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