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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
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Data corrente: |
16/02/2017 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GIMENES, F. M. de A.; BERNDT, A.; MATEUS, G. P.; LEDO, F. J. da S.; DEMARCHI, J. J. A. de A.; GIACOMINI, A. A.; GERDES, L.; BATISTA, K. |
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Afiliação: |
Flávia Maria de Andrade Gimenes, IZ - SP; ALEXANDRE BERNDT, CPPSE; Gustavo Pavan Mateus, APTA; FRANCISCO JOSE DA SILVA LEDO, CNPGL; João José Assumpção de Abreu Demarchi, IZ - SP; Alessandra Aparecida Giacomini, IZ - SP; Luciana Gerdes, IZ- SP; Karina Batista, IZ - SP. |
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Título: |
Forage mass and agronomic traits of Elephant grass genotypes under free-growth and conventional cutting systems. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 37, n. 4, supl. 1, p. 2577-2588, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Few grass genotypes with high yield potential are used as fodder in Brazil, making it necessary to develop new cultivars. In this study, we compared tiller density, forage mass, and agronomic traits across 12 Elephant grass (Pennisetum purpureum Schum.) genotypes under free-growth and conventional cutting systems at the Agência Paulista de Técnologia dos Agronegócios (APTA), Andradina, São Paulo, Brazil. The experimental design of the two trials was three replicates of a randomized complete block, each experimental unit consisting of 37.5-m2 plots with five rows spaced 1.5 m apart. We estimated tiller density 30, 60, and 150 days after planting (DAP), and 90 days after cut (DAC), and harvested the grass 150 DAP and 90 DAC for determination of forage mass and agronomic traits. In the free-growth system, forage mass was highest in genotypes CNPGL 00-155-2, CNPGL 92-41-1, CNPGL 92-51-1, and CNPGL 96-21-1 and in cultivar Guaçu. After cutting and regrowth, forage mass was highest in genotypes CNPGL 93-41-1, CNPGL 92-41-1, and CNPGL 91-11-2 and in cultivars Mineiro IPEACO, Guaçu, and Pioneiro. Stem mass was higher than leaf mass in the two trials, with leaf/stem ratio in most genotypes below 1.0. Aerial tiller density was highest for genotypes Pioneiro and CNPGL 00-155-2, and stem diameter was smallest in cv. Pioneiro in the free-growth and in the cutting and regrowth systems (9.7 and 7.62 mm, respectively). After regrowth, plant height ranged from 0.56 m in cv. Guaçu to 2.0 m in cv. Mineiro IPEACO and the mean number of internodes.stem-1 ranged from 2.1 in cv. Guaçu to 7.4 in cv. Pioneiro. Forage mass correlated positively with basal tiller density (r =0.4096) and negatively with stem diameter (r =-0.4879) in the free-growth trial, but relationships were not significant after regrowth. MenosAbstract Few grass genotypes with high yield potential are used as fodder in Brazil, making it necessary to develop new cultivars. In this study, we compared tiller density, forage mass, and agronomic traits across 12 Elephant grass (Pennisetum purpureum Schum.) genotypes under free-growth and conventional cutting systems at the Agência Paulista de Técnologia dos Agronegócios (APTA), Andradina, São Paulo, Brazil. The experimental design of the two trials was three replicates of a randomized complete block, each experimental unit consisting of 37.5-m2 plots with five rows spaced 1.5 m apart. We estimated tiller density 30, 60, and 150 days after planting (DAP), and 90 days after cut (DAC), and harvested the grass 150 DAP and 90 DAC for determination of forage mass and agronomic traits. In the free-growth system, forage mass was highest in genotypes CNPGL 00-155-2, CNPGL 92-41-1, CNPGL 92-51-1, and CNPGL 96-21-1 and in cultivar Guaçu. After cutting and regrowth, forage mass was highest in genotypes CNPGL 93-41-1, CNPGL 92-41-1, and CNPGL 91-11-2 and in cultivars Mineiro IPEACO, Guaçu, and Pioneiro. Stem mass was higher than leaf mass in the two trials, with leaf/stem ratio in most genotypes below 1.0. Aerial tiller density was highest for genotypes Pioneiro and CNPGL 00-155-2, and stem diameter was smallest in cv. Pioneiro in the free-growth and in the cutting and regrowth systems (9.7 and 7.62 mm, respectively). After regrowth, plant height ranged from 0.56 m in cv. Guaçu to ... Mostrar Tudo |
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Palavras-Chave: |
ILPF; Leaf/stem ratio; Tiller density. |
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Thesagro: |
Pennisetum Purpureum. |
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Thesaurus Nal: |
clones; height; hybrids. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155894/1/Cnpgl-2016-Semina-Forage.pdf
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Marc: |
LEADER 02675naa a2200289 a 4500
001 2064494
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aGIMENES, F. M. de A.
245 $aForage mass and agronomic traits of Elephant grass genotypes under free-growth and conventional cutting systems.$h[electronic resource]
260 $c2016
520 $aAbstract Few grass genotypes with high yield potential are used as fodder in Brazil, making it necessary to develop new cultivars. In this study, we compared tiller density, forage mass, and agronomic traits across 12 Elephant grass (Pennisetum purpureum Schum.) genotypes under free-growth and conventional cutting systems at the Agência Paulista de Técnologia dos Agronegócios (APTA), Andradina, São Paulo, Brazil. The experimental design of the two trials was three replicates of a randomized complete block, each experimental unit consisting of 37.5-m2 plots with five rows spaced 1.5 m apart. We estimated tiller density 30, 60, and 150 days after planting (DAP), and 90 days after cut (DAC), and harvested the grass 150 DAP and 90 DAC for determination of forage mass and agronomic traits. In the free-growth system, forage mass was highest in genotypes CNPGL 00-155-2, CNPGL 92-41-1, CNPGL 92-51-1, and CNPGL 96-21-1 and in cultivar Guaçu. After cutting and regrowth, forage mass was highest in genotypes CNPGL 93-41-1, CNPGL 92-41-1, and CNPGL 91-11-2 and in cultivars Mineiro IPEACO, Guaçu, and Pioneiro. Stem mass was higher than leaf mass in the two trials, with leaf/stem ratio in most genotypes below 1.0. Aerial tiller density was highest for genotypes Pioneiro and CNPGL 00-155-2, and stem diameter was smallest in cv. Pioneiro in the free-growth and in the cutting and regrowth systems (9.7 and 7.62 mm, respectively). After regrowth, plant height ranged from 0.56 m in cv. Guaçu to 2.0 m in cv. Mineiro IPEACO and the mean number of internodes.stem-1 ranged from 2.1 in cv. Guaçu to 7.4 in cv. Pioneiro. Forage mass correlated positively with basal tiller density (r =0.4096) and negatively with stem diameter (r =-0.4879) in the free-growth trial, but relationships were not significant after regrowth.
650 $aclones
650 $aheight
650 $ahybrids
650 $aPennisetum Purpureum
653 $aILPF
653 $aLeaf/stem ratio
653 $aTiller density
700 1 $aBERNDT, A.
700 1 $aMATEUS, G. P.
700 1 $aLEDO, F. J. da S.
700 1 $aDEMARCHI, J. J. A. de A.
700 1 $aGIACOMINI, A. A.
700 1 $aGERDES, L.
700 1 $aBATISTA, K.
773 $tSemina: Ciências Agrárias$gv. 37, n. 4, supl. 1, p. 2577-2588, 2016.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
31/01/2017 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
HOTT, M. C.; MORAS FILHO, L. O.; FONTES, M. A. L.; PEREIRA, A. A. S.; NOGUEIRA, C. de O. G.; CARVALHO, L. M. T. de; BORGES, L. A. C.; RESENDE, J. C. de; ANTUNES, M. A. H. |
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Afiliação: |
MARCOS CICARINI HOTT, CNPGL; Luiz Otávio Moras Filho, UFLA; Marco Aurélio Leite Fontes, UFLA; Aline Aparecida Silva Pereira, UFLA; Cláudia de Oliveira Gonçalves Nogueira, UFLA; Luis Marcelo Tavares de Carvalho, UFLA; Luís Antônio Coimbra Borges, UFLA; JOAO CESAR DE RESENDE, CNPGL; Mauro Antonio Homem Antunes, UFRRJ. |
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Título: |
Public Use and Landscape Analysis in the Serra da Canastra National Park, Brazil: A Geospatial Approach. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Natural Resources, v. 7, p. 93-101, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The Conservation Units (CU) were created to protect natural environments from growing degradation and to impede the expansion of urbanization and agricultural crops. The Serra da Canastra National Park, established to protect the headwaters of the São Francisco River and other places of scenic and ecological interest, is extensively visited due to its many tourist attractions, such as waterfalls, fauna and flora. An analysis of the park?s geography is needed to assess the risk involved in and its suitability for public use due to its territorial extension and environmental complexities. Thus, this study aimed to investigate the background of issues of interest to CU management. Additionally, we used high-resolution RapidEye imagery, altimetry and database of park infrastructure to build geospatial database and estimate classes of suitability for and risk in public use through GIS tools. The resulting cartographic data can support the planning of policies concerning the landscape and park?s territorial management. |
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Palavras-Chave: |
Conservation Units; GIS; RapidEye Imagery. |
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Thesaurus NAL: |
environment. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154375/1/Cnpgl-2016-NatResources-Public.pdf
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Marc: |
LEADER 01823naa a2200265 a 4500
001 2062307
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aHOTT, M. C.
245 $aPublic Use and Landscape Analysis in the Serra da Canastra National Park, Brazil$bA Geospatial Approach.$h[electronic resource]
260 $c2016
520 $aAbstract The Conservation Units (CU) were created to protect natural environments from growing degradation and to impede the expansion of urbanization and agricultural crops. The Serra da Canastra National Park, established to protect the headwaters of the São Francisco River and other places of scenic and ecological interest, is extensively visited due to its many tourist attractions, such as waterfalls, fauna and flora. An analysis of the park?s geography is needed to assess the risk involved in and its suitability for public use due to its territorial extension and environmental complexities. Thus, this study aimed to investigate the background of issues of interest to CU management. Additionally, we used high-resolution RapidEye imagery, altimetry and database of park infrastructure to build geospatial database and estimate classes of suitability for and risk in public use through GIS tools. The resulting cartographic data can support the planning of policies concerning the landscape and park?s territorial management.
650 $aenvironment
653 $aConservation Units
653 $aGIS
653 $aRapidEye Imagery
700 1 $aMORAS FILHO, L. O.
700 1 $aFONTES, M. A. L.
700 1 $aPEREIRA, A. A. S.
700 1 $aNOGUEIRA, C. de O. G.
700 1 $aCARVALHO, L. M. T. de
700 1 $aBORGES, L. A. C.
700 1 $aRESENDE, J. C. de
700 1 $aANTUNES, M. A. H.
773 $tNatural Resources$gv. 7, p. 93-101, 2016.
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Embrapa Gado de Leite (CNPGL) |
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