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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
25/07/2016 |
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Data da última atualização: |
03/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANGARO, W.; LESCANO, L. E. A. M.; MATSUURA, E. M.; RONDINA, A. B. L.; NOGUEIRA, M. A. |
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Afiliação: |
WALDEMAR ZANGARO, UEL; LUIS EDUARDO AZEVEDO MARQUES LESCANO, UENP; ENIO MASSAO MATSUURA, UEL; ARTUR BERBEL LIRIO RONDINA, UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Differences between root traits of early- and late-successional trees influence below-ground competition and seedling establishment. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Tropical Ecology, Cambridge, v. 32, n. 4, p. 300-313, Jul. 2016. |
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ISSN: |
1469-7831 |
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DOI: |
10.1017/S0266467416000274 |
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Idioma: |
Inglês |
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Conteúdo: |
The competitive influence of the root system of the exotic grass Urochloa brizantha and the widespread forb Leonotis nepetifolia on the emergence, survival and early growth of the seedlings of eight tropical heliophilous herbaceous species, six early-successional woody species and five late-successional woody species from Brazil, grown in 3500-cm3 pots and in greenhouse without light restriction were assessed. The density of fine-root systems produced by the forb and the grass in pots were 6.8 cm cm-3 soil and 48.1 cm cm-3 soil, respectively. Seedlings survival of the heliophilous herbaceous, early- and late-successional woody species were 86%, 70% and 100% in presence of the forb root system and 12%, 14% and 100% in competition with grass root system, respectively. The competitive pressure applied by the grass root system on seedling growth of the heliophilous herbaceous, early- and late-successional woody species were 2.4, 1.9 and 1.4 times greater than the forb root system. Total root length of the heliophilous herbaceous, early- and late-successional woody species grown without competitors were 13, 33 and 5 times greater than in competition with forb, and were 66, 54 and 6 times greater than in competition with grass root system, respectively. The averages of fine-root diameter of plants grown without competitors were 209 microm for the heliophilous herbaceous, 281 microm for early-successional trees and 382 microm for late-successional trees. The root system of the forb did not avoid seedling establishment of most plant species, but the grass root system hampered more the establishment of heliophilous herbaceous and early-successional woody species than the seedling establishment of late-successional woody species. The different density of root systems produced in soil by the forb and the grass, and the distinct root traits (e.g. root diameter and root tissue density) of the early- and late-successional plant species can explain the differences in the establishment of seedlings of plant species belonging to different groups of tropical succession when exposed to below-ground competition. MenosThe competitive influence of the root system of the exotic grass Urochloa brizantha and the widespread forb Leonotis nepetifolia on the emergence, survival and early growth of the seedlings of eight tropical heliophilous herbaceous species, six early-successional woody species and five late-successional woody species from Brazil, grown in 3500-cm3 pots and in greenhouse without light restriction were assessed. The density of fine-root systems produced by the forb and the grass in pots were 6.8 cm cm-3 soil and 48.1 cm cm-3 soil, respectively. Seedlings survival of the heliophilous herbaceous, early- and late-successional woody species were 86%, 70% and 100% in presence of the forb root system and 12%, 14% and 100% in competition with grass root system, respectively. The competitive pressure applied by the grass root system on seedling growth of the heliophilous herbaceous, early- and late-successional woody species were 2.4, 1.9 and 1.4 times greater than the forb root system. Total root length of the heliophilous herbaceous, early- and late-successional woody species grown without competitors were 13, 33 and 5 times greater than in competition with forb, and were 66, 54 and 6 times greater than in competition with grass root system, respectively. The averages of fine-root diameter of plants grown without competitors were 209 microm for the heliophilous herbaceous, 281 microm for early-successional trees and 382 microm for late-successional trees. The root system of the forb... Mostrar Tudo |
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Palavras-Chave: |
Arbuscular mycorrhizal fungi; Mineral-N; Root competition; Root system; Seedling survival; Tropical plant species. |
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Thesagro: |
Raiz; Sistema radicular. |
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Thesaurus Nal: |
Roots; Urochloa brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 03106naa a2200313 a 4500
001 2049525
005 2017-11-03
008 2016 bl uuuu u00u1 u #d
022 $a1469-7831
024 7 $a10.1017/S0266467416000274$2DOI
100 1 $aZANGARO, W.
245 $aDifferences between root traits of early- and late-successional trees influence below-ground competition and seedling establishment.$h[electronic resource]
260 $c2016
520 $aThe competitive influence of the root system of the exotic grass Urochloa brizantha and the widespread forb Leonotis nepetifolia on the emergence, survival and early growth of the seedlings of eight tropical heliophilous herbaceous species, six early-successional woody species and five late-successional woody species from Brazil, grown in 3500-cm3 pots and in greenhouse without light restriction were assessed. The density of fine-root systems produced by the forb and the grass in pots were 6.8 cm cm-3 soil and 48.1 cm cm-3 soil, respectively. Seedlings survival of the heliophilous herbaceous, early- and late-successional woody species were 86%, 70% and 100% in presence of the forb root system and 12%, 14% and 100% in competition with grass root system, respectively. The competitive pressure applied by the grass root system on seedling growth of the heliophilous herbaceous, early- and late-successional woody species were 2.4, 1.9 and 1.4 times greater than the forb root system. Total root length of the heliophilous herbaceous, early- and late-successional woody species grown without competitors were 13, 33 and 5 times greater than in competition with forb, and were 66, 54 and 6 times greater than in competition with grass root system, respectively. The averages of fine-root diameter of plants grown without competitors were 209 microm for the heliophilous herbaceous, 281 microm for early-successional trees and 382 microm for late-successional trees. The root system of the forb did not avoid seedling establishment of most plant species, but the grass root system hampered more the establishment of heliophilous herbaceous and early-successional woody species than the seedling establishment of late-successional woody species. The different density of root systems produced in soil by the forb and the grass, and the distinct root traits (e.g. root diameter and root tissue density) of the early- and late-successional plant species can explain the differences in the establishment of seedlings of plant species belonging to different groups of tropical succession when exposed to below-ground competition.
650 $aRoots
650 $aUrochloa brizantha
650 $aRaiz
650 $aSistema radicular
653 $aArbuscular mycorrhizal fungi
653 $aMineral-N
653 $aRoot competition
653 $aRoot system
653 $aSeedling survival
653 $aTropical plant species
700 1 $aLESCANO, L. E. A. M.
700 1 $aMATSUURA, E. M.
700 1 $aRONDINA, A. B. L.
700 1 $aNOGUEIRA, M. A.
773 $tJournal of Tropical Ecology, Cambridge$gv. 32, n. 4, p. 300-313, Jul. 2016.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 349 | |
| 21. |  | LOBO, R. N. B. Selección del reproductor adecuado. In: CONGRESO INTERNACIONAL OVINO Y CAPRINO, 2., 2005, Bogotá. Memorias... Bogotá: Universidad Nacional de Colombia, 2005. 4 f. 1 CD ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 28. | | FACO, O.; LOBO, R. N. B. Programa de melhoramento genético de caprinos leiteiros. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 18.; CONGRESSO INTERNACIONAL DE ZOOTECNIA, 10.; SIMPÓSIO PARAIBANO DE ZOOTECNIA, 6.; FORÚM DE COORDENADORES DE CURSOS DE ZOOTECNIA DAS UNIVERSIDADES BRASILEIRAS, 4.; FORÚM DE ESTUDANTES DE CURSOS DE ZOOTECNIA DAS UNIVERSIDADES BRASILEIRAS, 4.; REUNIÃO NACIONAL DE ENSINO DE ZOOTECNIA, 14.; FORÚM DE ENTIDADES DE ZOOTECNISTAS, 31.; MOSTRA DE RAÇAS DE CAPRINOS E OVINOS NATIVOS, 3.; SEMANA DA CAPRINOCULTURA E DA OVINOCULTURA BRASILEIRAS, 6., 2008, João Pessoa. Anais... João Pessoa: Associação Brasileira de Zootecnia: Embrapa Caprinos; UFPB, 2008. 9 f. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 40. | | LOBO, R. N. B.; LOBO, A. M. B. O. Melhoramento genético como ferramenta para o crescimento e o desenvolvimento da ovinocultura de corte. Revista Brasileira de Reprodução Animal, v. 31, n. 2, p. 247-253, abr./jun., 2007. Palestra apresentada no XVII Congresso Brasileiro de Reprodução Animal, 31 de maio a 02 de junho de 2007, Curitiba, PR.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 349 | |
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