Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios
Main Author: | |
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Publication Date: | 2019 |
Format: | Doctoral thesis |
Language: | por |
Source: | Biblioteca Digital de Teses e Dissertações do UFSM |
Download full: | http://repositorio.ufsm.br/handle/1/17257 |
Summary: | This study has the objective to evaluate dynamic of growth and utilization of native grass species Andropogon lateralis, Aristida laevis, Axonopus affinis and Paspalum notatum in a natural pasture of the Central Depression of Rio Grande do Sul submitted to a rotational grazing. The evaluation period was from October 2015 to March 2016. The experimental design was a randomized blocks, with two treatments and three repetitions, with repeated measurements in time. The treatments consisted of two different time intervals between grazing selected by thermal sums of 375 degrees day (DD) and 750 days (DD), considering the leaf expansion of prostrate and cespitose species, respectively. The blocking factor was the proportion of top, slope and lowland reliefs in each repetition. The dynamics of growth and senescence were evaluated, as well as intensity and frequency of defoliation on these grasses. From the evaluated grasses P.notatum was the only that presented differences among seasons for phyllochron, leaf lifespan, duration of leaf elongation and leaf elongation rate, and the highest values were on summer. The species A. affinis was the only one that presented difference between the treatments, and only for leaf elongation rate, which was higher in the treatment of 750 DD. |
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2019-07-02T15:33:07Z2019-07-02T15:33:07Z2019-02-22http://repositorio.ufsm.br/handle/1/17257This study has the objective to evaluate dynamic of growth and utilization of native grass species Andropogon lateralis, Aristida laevis, Axonopus affinis and Paspalum notatum in a natural pasture of the Central Depression of Rio Grande do Sul submitted to a rotational grazing. The evaluation period was from October 2015 to March 2016. The experimental design was a randomized blocks, with two treatments and three repetitions, with repeated measurements in time. The treatments consisted of two different time intervals between grazing selected by thermal sums of 375 degrees day (DD) and 750 days (DD), considering the leaf expansion of prostrate and cespitose species, respectively. The blocking factor was the proportion of top, slope and lowland reliefs in each repetition. The dynamics of growth and senescence were evaluated, as well as intensity and frequency of defoliation on these grasses. From the evaluated grasses P.notatum was the only that presented differences among seasons for phyllochron, leaf lifespan, duration of leaf elongation and leaf elongation rate, and the highest values were on summer. The species A. affinis was the only one that presented difference between the treatments, and only for leaf elongation rate, which was higher in the treatment of 750 DD.Esta tese tem por objetivo estudar a dinâmica de crescimento e utilização das espécies de gramíneas nativas Andropogon lateralis, Aristida laevis, Axonopus affinis e Paspalum notatum em uma pastagem natural da Depressão Central do Rio Grande do Sul submetida a pastoreio rotativo. O trabalho foi desenvolvido, em Área Experimental do Departamento de Zootecnia da Universidade Federal de Santa Maria, no período de Outubro de 2015 a Março de 2016. O delineamento experimental utilizado foi em blocos casualizados, com dois tratamentos e três repetições, com as medidas repetidas no tempo. Os tratamentos constituíram-se de dois diferentes intervalos de descanso entre pastoreios determinados por somas térmicas 375 graus dia (GD), e 750 graus dias (GD), definidos pela duração da expansão foliar de espécies prostradas e cespitosas, respectivamente. O fator de bloqueamento foi a proporção dos relevos topo, encosta e baixada em cada repetição. Foram avaliadas a dinâmica de crescimento e senescência, bem como, a intensidade e a frequência de desfolha dessas gramíneas. Das espécies estudadas na dinâmica de crescimento a gramínea P. notatum foi a única espécie que apresentou diferença entre estações, para as variáveis filocrono, duração de vida de folha, duração de elongação foliar e taxa de elongação foliar, sendo que os maiores valores identificados foram no verão. A espécie A. affinis, foi a única que apresentou diferença entre tratamentos e, apenas na taxa de elongação foliar, que foi superior no tratamento de 750 GD.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em ZootecniaUFSMBrasilZootecniaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessBioma PampaManejoMorfogênesePampa biomeManagementMorphogenesisCNPQ::CIENCIAS AGRARIAS::ZOOTECNIADinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreiosDynamics of growth and use of native grasses of Rio Grande do Sul submitted to two ground breaks between pastorsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisQuadros, Fernando Luiz Ferreira dehttp://lattes.cnpq.br/9202266292366562Pötter, Lucianahttp://lattes.cnpq.br/0683474086643296Gierus, Martinhttp://lattes.cnpq.br/4401707241578369Machado, Juliana Medianeirahttp://lattes.cnpq.br/7184654849732716Trindade, José Pedro Pereirahttp://lattes.cnpq.br/7976647947215420http://lattes.cnpq.br/9109407306867932Seibert, Liane50040000000260087f7a696-584d-4ee4-ad83-13fd04320556c867ebe2-9f9e-4941-8e9c-8093eb4c6dc00a396763-33d6-4c4b-9646-cfa9ccf2739fdb05f3c9-f873-43ef-94b7-940f372a56cd030f8b9d-4ee4-415a-bf22-21a0fcff950adbbb39d4-6880-4f8d-a4d4-d06f0a8c8513reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGZOOTECNIA_2019_SEIBERT_LIANE.pdfTES_PPGZOOTECNIA_2019_SEIBERT_LIANE.pdfTese de Doutoradoapplication/pdf1351488http://repositorio.ufsm.br/bitstream/1/17257/1/TES_PPGZOOTECNIA_2019_SEIBERT_LIANE.pdfb75a5301da5a61b166979e007cafcf05MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
dc.title.alternative.eng.fl_str_mv |
Dynamics of growth and use of native grasses of Rio Grande do Sul submitted to two ground breaks between pastors |
title |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
spellingShingle |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios Seibert, Liane Bioma Pampa Manejo Morfogênese Pampa biome Management Morphogenesis CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
title_full |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
title_fullStr |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
title_full_unstemmed |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
title_sort |
Dinâmica do crescimento e utilização de gramíneas nativas do Rio Grande do Sul submetidas a dois intervalos de descanso entre pastoreios |
author |
Seibert, Liane |
author_facet |
Seibert, Liane |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Quadros, Fernando Luiz Ferreira de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9202266292366562 |
dc.contributor.referee1.fl_str_mv |
Pötter, Luciana |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0683474086643296 |
dc.contributor.referee2.fl_str_mv |
Gierus, Martin |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4401707241578369 |
dc.contributor.referee3.fl_str_mv |
Machado, Juliana Medianeira |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/7184654849732716 |
dc.contributor.referee4.fl_str_mv |
Trindade, José Pedro Pereira |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7976647947215420 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9109407306867932 |
dc.contributor.author.fl_str_mv |
Seibert, Liane |
contributor_str_mv |
Quadros, Fernando Luiz Ferreira de Pötter, Luciana Gierus, Martin Machado, Juliana Medianeira Trindade, José Pedro Pereira |
dc.subject.por.fl_str_mv |
Bioma Pampa Manejo Morfogênese |
topic |
Bioma Pampa Manejo Morfogênese Pampa biome Management Morphogenesis CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Pampa biome Management Morphogenesis |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
This study has the objective to evaluate dynamic of growth and utilization of native grass species Andropogon lateralis, Aristida laevis, Axonopus affinis and Paspalum notatum in a natural pasture of the Central Depression of Rio Grande do Sul submitted to a rotational grazing. The evaluation period was from October 2015 to March 2016. The experimental design was a randomized blocks, with two treatments and three repetitions, with repeated measurements in time. The treatments consisted of two different time intervals between grazing selected by thermal sums of 375 degrees day (DD) and 750 days (DD), considering the leaf expansion of prostrate and cespitose species, respectively. The blocking factor was the proportion of top, slope and lowland reliefs in each repetition. The dynamics of growth and senescence were evaluated, as well as intensity and frequency of defoliation on these grasses. From the evaluated grasses P.notatum was the only that presented differences among seasons for phyllochron, leaf lifespan, duration of leaf elongation and leaf elongation rate, and the highest values were on summer. The species A. affinis was the only one that presented difference between the treatments, and only for leaf elongation rate, which was higher in the treatment of 750 DD. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-07-02T15:33:07Z |
dc.date.available.fl_str_mv |
2019-07-02T15:33:07Z |
dc.date.issued.fl_str_mv |
2019-02-22 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/17257 |
url |
http://repositorio.ufsm.br/handle/1/17257 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500400000002 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Zootecnia |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Zootecnia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
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