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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
11/04/1997 |
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Data da última atualização: |
11/04/1997 |
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Autoria: |
KLINK, C. A. |
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Título: |
Competition between the African grass Andropogon gayanus Kunth and the native cerrado grass Schizachyrium tenerum Nees. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Revista Brasileira de Botanica, v.19, n.1, p.11-15, 1996. |
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Idioma: |
Inglês |
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Conteúdo: |
African grasses are becoming major invaders of cerrado areas in Central Brazil. It has been suggested that African grasses are better competitors than native cerrado grasses in colonizing these areas. In this paper the competitive ability of one African grasses (Andropogon gayanus) and one native grass (Schizachyrium tenerum) that occur together in the cerrado was studied. Both species were grown as monoculture and mixture in greenhouse under the following treatments: clipping of plants, addition of nitrogen to the soil, clipping and addition of nitrogen, and untreated. After a period of 16 weeks plants were harvested and dry biomass was measured. The biomass data were used to calculate 3 competition indexes, used to analyze the effect of competition of both species on each other. The results show that A. gayanus was not a better competitor than S. tenerum, which seemed to have a higher effect on the growth of the African species. A. gayanus did not produce tilers in response to clipping and S. tenerum responded more to nitrogen than A. gayanus. The results suggest that. A. gayanus grows better in monoculture than in mixture, while S. tenerum grows in mixture than in monoculture. |
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Palavras-Chave: |
Indigenous organisms; Planta nativa; Schizachyrium tenerum. |
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Thesagro: |
Andropogon Gayanus; Cerrado; Gramínea. |
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Thesaurus Nal: |
grasses. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01811naa a2200205 a 4500
001 1552687
005 1997-04-11
008 1996 bl --- 0-- u #d
100 1 $aKLINK, C. A.
245 $aCompetition between the African grass Andropogon gayanus Kunth and the native cerrado grass Schizachyrium tenerum Nees.
260 $c1996
520 $aAfrican grasses are becoming major invaders of cerrado areas in Central Brazil. It has been suggested that African grasses are better competitors than native cerrado grasses in colonizing these areas. In this paper the competitive ability of one African grasses (Andropogon gayanus) and one native grass (Schizachyrium tenerum) that occur together in the cerrado was studied. Both species were grown as monoculture and mixture in greenhouse under the following treatments: clipping of plants, addition of nitrogen to the soil, clipping and addition of nitrogen, and untreated. After a period of 16 weeks plants were harvested and dry biomass was measured. The biomass data were used to calculate 3 competition indexes, used to analyze the effect of competition of both species on each other. The results show that A. gayanus was not a better competitor than S. tenerum, which seemed to have a higher effect on the growth of the African species. A. gayanus did not produce tilers in response to clipping and S. tenerum responded more to nitrogen than A. gayanus. The results suggest that. A. gayanus grows better in monoculture than in mixture, while S. tenerum grows in mixture than in monoculture.
650 $agrasses
650 $aAndropogon Gayanus
650 $aCerrado
650 $aGramínea
653 $aIndigenous organisms
653 $aPlanta nativa
653 $aSchizachyrium tenerum
773 $tRevista Brasileira de Botanica$gv.19, n.1, p.11-15, 1996.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
13/05/2013 |
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Data da última atualização: |
21/06/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MARTINS, C. R.; HOFFMANN, A.; ROMBALDI, C. V.; FARIAS, R. de M.; TEODORO, A. V. |
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Afiliação: |
CARLOS ROBERTO MARTINS, CPATC; ALEXANDRE HOFFMANN, CNPUV; CESAR VALMOR ROMBALDI, UFPEL; ROSELI DE MELLO FARIAS, UERGS; ADENIR VIEIRA TEODORO, CPATC. |
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Título: |
Apple biological and physiological disorders in the orchard and in postharvest according to production system. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Revista Brasileira de Fruticultura, Jaboticabal, v. 35, n. 1, p. 1-8, mar. 2013. |
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Idioma: |
Português |
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Conteúdo: |
The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala'), and bitter pit ('Fuji' and 'Catarina'). The incidence of postharvest rot was not influenced by apple production system. |
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Palavras-Chave: |
Distúrbio biológico. |
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Thesagro: |
Distúrbio Fisiológico; Fruticultura; Maçã; Pós-colheita; Produção; Produção Integrada; Produção Orgânica. |
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Categoria do assunto: |
-- |
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URL: |
https://www.scielo.br/pdf/rbf/v35n1/01.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84666/1/MARTINS-RBF-v35n1p1-2013.pdf
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Marc: |
LEADER 01729naa a2200265 a 4500
001 1957723
005 2013-06-21
008 2013 bl uuuu u00u1 u #d
100 1 $aMARTINS, C. R.
245 $aApple biological and physiological disorders in the orchard and in postharvest according to production system.$h[electronic resource]
260 $c2013
520 $aThe study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala'), and bitter pit ('Fuji' and 'Catarina'). The incidence of postharvest rot was not influenced by apple production system.
650 $aDistúrbio Fisiológico
650 $aFruticultura
650 $aMaçã
650 $aPós-colheita
650 $aProdução
650 $aProdução Integrada
650 $aProdução Orgânica
653 $aDistúrbio biológico
700 1 $aHOFFMANN, A.
700 1 $aROMBALDI, C. V.
700 1 $aFARIAS, R. de M.
700 1 $aTEODORO, A. V.
773 $tRevista Brasileira de Fruticultura, Jaboticabal$gv. 35, n. 1, p. 1-8, mar. 2013.
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Embrapa Uva e Vinho (CNPUV) |
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