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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
16/06/2010 |
Data da última atualização: |
16/06/2010 |
Autoria: |
SABOYA, R. de C. C.; BRITO, M. de J. D. de; COLLIER, L. do S.; SOBOYA, L. M. F.; LIMA, S. de O. |
Título: |
Identificação de solos e paisagem do Assentamento Vale Verde, Gurupi, TO, para fins de aptidão agrícola. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2008. |
Páginas: |
28 p. |
Série: |
(Embrapa Cerrados. Boletim de pesquisa e desenvolvimento, 227). |
Idioma: |
Português |
Palavras-Chave: |
Natural resource; Recursos naturais. |
Thesagro: |
Aptidão Agrícola; Solo. |
Thesaurus Nal: |
Soil; Soil surveys. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00749nam a2200241 a 4500 001 1855224 005 2010-06-16 008 2008 bl uuuu u0uu1 u #d 100 1 $aSABOYA, R. de C. C. 245 $aIdentificação de solos e paisagem do Assentamento Vale Verde, Gurupi, TO, para fins de aptidão agrícola. 260 $aPlanaltina, DF: Embrapa Cerrados$c2008 300 $a28 p. 490 $a(Embrapa Cerrados. Boletim de pesquisa e desenvolvimento, 227). 650 $aSoil 650 $aSoil surveys 650 $aAptidão Agrícola 650 $aSolo 653 $aNatural resource 653 $aRecursos naturais 700 1 $aBRITO, M. de J. D. de 700 1 $aCOLLIER, L. do S. 700 1 $aSOBOYA, L. M. F. 700 1 $aLIMA, S. de O.
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
Data corrente: |
16/02/2017 |
Data da última atualização: |
30/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
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. |
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. |
Título: |
Forage mass and agronomic traits of Elephant grass genotypes under free-growth and conventional cutting systems. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 37, n. 4, supl. 1, p. 2577-2588, 2016. |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
ILPF; Leaf/stem ratio; Tiller density. |
Thesagro: |
Pennisetum Purpureum. |
Thesaurus NAL: |
clones; height; hybrids. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155894/1/Cnpgl-2016-Semina-Forage.pdf
|
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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