Growth of Caesalpinia ferrea seedlings under different shading levels

Detalhes bibliográficos
Autor(a) principal: Lenhard, Nádia Regina
Data de Publicação: 2013
Outros Autores: Paiva Neto, Vespasiano Borges de, Scalon, Silvana de Paula Quintão, Alvarenga, Amauri Alves de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/19571
Resumo: Obtaining native seedlings requires information about seeds harvest time, storage and luminosity conditions, germination and types of substrate, among others. This study aimed at evaluating the luminosity demands for the initial growth of Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth (Fabaceae-Caesalpinioideae) seedlings submitted to different shading levels, at 60 days after transplant (DAT). The experimental design was completely randomized, in 3x5 factorial scheme (three shading levels: 0%, 50% and 70%; and five evaluation times: 60, 90, 120, 150 and 180 DAT), with four replications of 10 seedlings per experimental unit. Plants grown under the shading level of 70% presented the highest contents for total chlorophyll (38.79 ?g cm-2), leaf area ratio (51.54 g cm-2), relative growth rate (0.0322 g g-1 day-1) and leaf weight ratio (0.2708 g g-1). The highest values for stem height (110.34 cm) and base diameter (9.3 mm), and root (11.13 g), leaf (5.59 g) and shoot (16.05 g) dry matter, as well as leaf area (705.25 cm2), were observed in the plants cultivated under the shading level of 50%. No differences were observed for root growth, specific leaf weight, net assimilation rate and specific leaf area, concerning the different shading levels tested (averages of 9.3 cm, 0.0082 g cm-2, 0.0006 g cm-2 day-1 and 186.24 g cm-2, respectively). The Caesalpinia ferrea seedlings presented a better growth rate when cultivated under the shading level of 50%.
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spelling Growth of Caesalpinia ferrea seedlings under different shading levelsCrescimento de mudas de pau-ferro sob diferentes níveis de sombreamentoCaesalpinia ferrea Mart. ex. Tul. var. leiostachya Benthplant ecophysiologyplant growth.Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benthecofisiologia vegetaldesenvolvimento vegetal.Obtaining native seedlings requires information about seeds harvest time, storage and luminosity conditions, germination and types of substrate, among others. This study aimed at evaluating the luminosity demands for the initial growth of Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth (Fabaceae-Caesalpinioideae) seedlings submitted to different shading levels, at 60 days after transplant (DAT). The experimental design was completely randomized, in 3x5 factorial scheme (three shading levels: 0%, 50% and 70%; and five evaluation times: 60, 90, 120, 150 and 180 DAT), with four replications of 10 seedlings per experimental unit. Plants grown under the shading level of 70% presented the highest contents for total chlorophyll (38.79 ?g cm-2), leaf area ratio (51.54 g cm-2), relative growth rate (0.0322 g g-1 day-1) and leaf weight ratio (0.2708 g g-1). The highest values for stem height (110.34 cm) and base diameter (9.3 mm), and root (11.13 g), leaf (5.59 g) and shoot (16.05 g) dry matter, as well as leaf area (705.25 cm2), were observed in the plants cultivated under the shading level of 50%. No differences were observed for root growth, specific leaf weight, net assimilation rate and specific leaf area, concerning the different shading levels tested (averages of 9.3 cm, 0.0082 g cm-2, 0.0006 g cm-2 day-1 and 186.24 g cm-2, respectively). The Caesalpinia ferrea seedlings presented a better growth rate when cultivated under the shading level of 50%.A obtenção de mudas nativas requer informações sobre a época de coleta das sementes, condições de armazenamento e luminosidade, germinação e tipos de substrato, dentre outras. Este trabalho objetivou avaliar as exigências de luminosidade no crescimento inicial de mudas de pau-ferro [Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth (Fabaceae-Caesalpinioideae)] submetidas a diferentes níveis de sombreamento, aos 60 dias após o transplante (DAT). O delineamento experimental foi inteiramente casualizado, em esquema fatorial 3x5 (três níveis de sombreamento: 0%, 50% e 70%; e cinco épocas de avaliação: 60, 90, 120, 150 e 180 DAT), com quatro repetições de 10 mudas por unidade experimental. Plantas cultivadas sob 70% de sombreamento apresentaram maiores teores de clorofila total (38,79 ?g cm-2), razão de área foliar (51,54 g cm-2), taxa de crescimento relativo (0,0322 g g-1 dia-1) e razão de peso foliar (0,2708 g g-1). Os maiores valores para altura (110,34 cm), diâmetro (9,3 mm) e massa seca da raiz (11,13 g), da folha (5,59 g) e da parte aérea (16,05 g), bem como para área foliar (705,25 cm2), foram observados nas plantas cultivadas sob 50% de sombreamento. Não foram observadas diferenças quanto ao crescimento da raiz, peso específico foliar, taxa assimilatória líquida e área foliar específica, em relação aos diferentes níveis de luminosidade testados (médias de 9,3 cm; 0,0082 g cm-2; 0,0006 g cm-2 dia-1; e 186,24 g cm-2, respectivamente). As mudas de pau-ferro apresentaram melhor desempenho de crescimento quando cultivadas sob 50% de sombreamento.Escola de Agronomia - Universidade Federal de Goiás2013-07-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/19571Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 43, n. 2, Apr./Jun. 2013; 178-186Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 43, n. 2, abr./jun. 2013; 178-186Pesquisa Agropecuária Tropical; v. 43, n. 2, abr./jun. 2013; 178-1861983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/19571/14657Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessLenhard, Nádia ReginaPaiva Neto, Vespasiano Borges deScalon, Silvana de Paula QuintãoAlvarenga, Amauri Alves de2020-07-10T12:29:41Zoai:ojs.revistas.ufg.br:article/19571Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:57.043187Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Growth of Caesalpinia ferrea seedlings under different shading levels
Crescimento de mudas de pau-ferro sob diferentes níveis de sombreamento
title Growth of Caesalpinia ferrea seedlings under different shading levels
spellingShingle Growth of Caesalpinia ferrea seedlings under different shading levels
Lenhard, Nádia Regina
Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
plant ecophysiology
plant growth.
Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
ecofisiologia vegetal
desenvolvimento vegetal.
title_short Growth of Caesalpinia ferrea seedlings under different shading levels
title_full Growth of Caesalpinia ferrea seedlings under different shading levels
title_fullStr Growth of Caesalpinia ferrea seedlings under different shading levels
title_full_unstemmed Growth of Caesalpinia ferrea seedlings under different shading levels
title_sort Growth of Caesalpinia ferrea seedlings under different shading levels
author Lenhard, Nádia Regina
author_facet Lenhard, Nádia Regina
Paiva Neto, Vespasiano Borges de
Scalon, Silvana de Paula Quintão
Alvarenga, Amauri Alves de
author_role author
author2 Paiva Neto, Vespasiano Borges de
Scalon, Silvana de Paula Quintão
Alvarenga, Amauri Alves de
author2_role author
author
author
dc.contributor.author.fl_str_mv Lenhard, Nádia Regina
Paiva Neto, Vespasiano Borges de
Scalon, Silvana de Paula Quintão
Alvarenga, Amauri Alves de
dc.subject.por.fl_str_mv Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
plant ecophysiology
plant growth.
Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
ecofisiologia vegetal
desenvolvimento vegetal.
topic Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
plant ecophysiology
plant growth.
Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth
ecofisiologia vegetal
desenvolvimento vegetal.
description Obtaining native seedlings requires information about seeds harvest time, storage and luminosity conditions, germination and types of substrate, among others. This study aimed at evaluating the luminosity demands for the initial growth of Caesalpinia ferrea Mart. ex. Tul. var. leiostachya Benth (Fabaceae-Caesalpinioideae) seedlings submitted to different shading levels, at 60 days after transplant (DAT). The experimental design was completely randomized, in 3x5 factorial scheme (three shading levels: 0%, 50% and 70%; and five evaluation times: 60, 90, 120, 150 and 180 DAT), with four replications of 10 seedlings per experimental unit. Plants grown under the shading level of 70% presented the highest contents for total chlorophyll (38.79 ?g cm-2), leaf area ratio (51.54 g cm-2), relative growth rate (0.0322 g g-1 day-1) and leaf weight ratio (0.2708 g g-1). The highest values for stem height (110.34 cm) and base diameter (9.3 mm), and root (11.13 g), leaf (5.59 g) and shoot (16.05 g) dry matter, as well as leaf area (705.25 cm2), were observed in the plants cultivated under the shading level of 50%. No differences were observed for root growth, specific leaf weight, net assimilation rate and specific leaf area, concerning the different shading levels tested (averages of 9.3 cm, 0.0082 g cm-2, 0.0006 g cm-2 day-1 and 186.24 g cm-2, respectively). The Caesalpinia ferrea seedlings presented a better growth rate when cultivated under the shading level of 50%.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/19571
url https://revistas.ufg.br/pat/article/view/19571
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/19571/14657
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 43, n. 2, Apr./Jun. 2013; 178-186
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 43, n. 2, abr./jun. 2013; 178-186
Pesquisa Agropecuária Tropical; v. 43, n. 2, abr./jun. 2013; 178-186
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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