Growth of Caesalpinia ferrea seedlings under different shading levels
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
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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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 |
_version_ |
1799874818242248704 |