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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/12/2016 |
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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: |
FERNANDES, P. B.; CARVALHO, C. A. B. de; PACIULLO, D. S. C.; GOMIDE, C. A. de M.; MORENZ, M. J. F.; LEDO, F. J. da S. |
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Afiliação: |
Priscila Beligoli Fernandes, UFRRJ; Carlos Augusto Brandão de Carvalho, UFRRJ; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; MIRTON JOSE FROTA MORENZ, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL. |
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Título: |
Morphogenetic and structural characteristics of clones of elephant grass managed under intermittent stocking. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 37, n. 4, p. 2099-2110, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
This work was carried out to evaluate the morphogenetic and structural characteristics of basal and aerial tillers of two dwarf elephant grass clones (BRS Kurumi and CNPGL 00-1-3) managed under intermittent stocking in six grazing cycles. A completely randomized experimental design with three replications (paddocks) in split-split-plot arrangements was used. The clones were allocated to the plots, tiller classes were assigned to the subplots and grazing cycles to sub subplots. Higher values for basal tillers than aerial tillers were seen for the following characteristics: leaf elongation rate (12.8 and 5.1 cm/tiller/day), leaf appearance rate (0.26 and 0.19 leaves/tiller/day), stem elongation rate (0.38 and 0.16 cm/tiller/day), senescence rate (0.98 and 0.47 cm/tiller/day), total number of leaves (9.3 and 7.1 leaves/tiller), number of live leaves (7.7 and 5.8 leaves/tiller) and final length of leaf blades (33.5 and 20.0 cm). Phyllochron was lower for basal (4.0 days/leaf) than aerial tillers (5.5 days/leaf). The leaf life span increased with the advance of the grazing cycles, averaging 31.2 days. The tiller density increased with the advance of the grazing cycles showing an average increase of 167% of aerial tillers and 62% of basal tillers for both clones. The morphogenetic and structural characteristics of dwarf clones were influenced jointly by the clones and the availability of the environmental factors of growth during the spring and summer. The high leaf elongation rates, associated with high leaf appearance rate, reveal the potential of high production dry matter of leaves and restoration of leaf area after grazing. MenosThis work was carried out to evaluate the morphogenetic and structural characteristics of basal and aerial tillers of two dwarf elephant grass clones (BRS Kurumi and CNPGL 00-1-3) managed under intermittent stocking in six grazing cycles. A completely randomized experimental design with three replications (paddocks) in split-split-plot arrangements was used. The clones were allocated to the plots, tiller classes were assigned to the subplots and grazing cycles to sub subplots. Higher values for basal tillers than aerial tillers were seen for the following characteristics: leaf elongation rate (12.8 and 5.1 cm/tiller/day), leaf appearance rate (0.26 and 0.19 leaves/tiller/day), stem elongation rate (0.38 and 0.16 cm/tiller/day), senescence rate (0.98 and 0.47 cm/tiller/day), total number of leaves (9.3 and 7.1 leaves/tiller), number of live leaves (7.7 and 5.8 leaves/tiller) and final length of leaf blades (33.5 and 20.0 cm). Phyllochron was lower for basal (4.0 days/leaf) than aerial tillers (5.5 days/leaf). The leaf life span increased with the advance of the grazing cycles, averaging 31.2 days. The tiller density increased with the advance of the grazing cycles showing an average increase of 167% of aerial tillers and 62% of basal tillers for both clones. The morphogenetic and structural characteristics of dwarf clones were influenced jointly by the clones and the availability of the environmental factors of growth during the spring and summer. The high leaf elongation rat... Mostrar Tudo |
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Palavras-Chave: |
Basal and aerial tillers. |
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Thesagro: |
Pennisetum Purpureum. |
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Thesaurus Nal: |
morphogenesis; Tillers. |
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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/151805/1/Cnpgl-2016-Semina-Morphogenetic.pdf
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Marc: |
LEADER 02378naa a2200229 a 4500
001 2058660
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aFERNANDES, P. B.
245 $aMorphogenetic and structural characteristics of clones of elephant grass managed under intermittent stocking.$h[electronic resource]
260 $c2016
520 $aThis work was carried out to evaluate the morphogenetic and structural characteristics of basal and aerial tillers of two dwarf elephant grass clones (BRS Kurumi and CNPGL 00-1-3) managed under intermittent stocking in six grazing cycles. A completely randomized experimental design with three replications (paddocks) in split-split-plot arrangements was used. The clones were allocated to the plots, tiller classes were assigned to the subplots and grazing cycles to sub subplots. Higher values for basal tillers than aerial tillers were seen for the following characteristics: leaf elongation rate (12.8 and 5.1 cm/tiller/day), leaf appearance rate (0.26 and 0.19 leaves/tiller/day), stem elongation rate (0.38 and 0.16 cm/tiller/day), senescence rate (0.98 and 0.47 cm/tiller/day), total number of leaves (9.3 and 7.1 leaves/tiller), number of live leaves (7.7 and 5.8 leaves/tiller) and final length of leaf blades (33.5 and 20.0 cm). Phyllochron was lower for basal (4.0 days/leaf) than aerial tillers (5.5 days/leaf). The leaf life span increased with the advance of the grazing cycles, averaging 31.2 days. The tiller density increased with the advance of the grazing cycles showing an average increase of 167% of aerial tillers and 62% of basal tillers for both clones. The morphogenetic and structural characteristics of dwarf clones were influenced jointly by the clones and the availability of the environmental factors of growth during the spring and summer. The high leaf elongation rates, associated with high leaf appearance rate, reveal the potential of high production dry matter of leaves and restoration of leaf area after grazing.
650 $amorphogenesis
650 $aTillers
650 $aPennisetum Purpureum
653 $aBasal and aerial tillers
700 1 $aCARVALHO, C. A. B. de
700 1 $aPACIULLO, D. S. C.
700 1 $aGOMIDE, C. A. de M.
700 1 $aMORENZ, M. J. F.
700 1 $aLEDO, F. J. da S.
773 $tSemina: Ciências Agrárias$gv. 37, n. 4, p. 2099-2110, 2016.
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Embrapa Gado de Leite (CNPGL) |
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| 1. |  | FERNANDES, P. B.; CARVALHO, C. A. B. de; PACIULLO, D. S. C.; GOMIDE, C. A. de M.; MORENZ, M. J. F.; LEDO, F. J. da S. Morphogenetic and structural characteristics of clones of elephant grass managed under intermittent stocking. Semina: Ciências Agrárias, v. 37, n. 4, p. 2099-2110, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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