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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
09/07/2019 |
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Data da última atualização: |
04/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
GOMES, F. J.; PEDREIRA, C. G. S.; BOSI, C.; CAVALLI, J.; HOLSCHUCH, S. G.; MOURÃO, G. B.; PEREIRA, D. H.; PEDREIRA, B. C. e. |
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Afiliação: |
FAGNER JUNIOR GOMES, USP-ESALQ, Piracicaba, SP; CARLOS GUILHERME SILVEIRA PEDREIRA, USP-ESALQ, Piracicaba, SP; CRISTIAM BOSI, USP-ESALQ, Piracicaba, SP; JOSIANA CAVALLI, UFMT, Sinop, MT; SOLANGE GARCIA HOLSCHUCH, USP-ESALQ, Piracicaba, SP; GERSON BARRETO MOURÃO, USP-ESALQ, Piracicaba, SP; DALTON HENRIQUE PEREIRA, UFMT, Sinop, MT; BRUNO CARNEIRO E PEDREIRA, CPAMT. |
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Título: |
Shading Effects on Marandu Palisadegrass in a Silvopastoral System: plant morphological and physiological responses. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Agronomy Journal, v. 111, n. 5, p. 1-9, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
The understanding of plant morphological and physiological responses to shading can contribute to developing sustainable silvopastoral systems (SPS). Our objective was to evaluate the shading effect on herbage accumulation (HA), plant-part composition, physiology, and canopy structural characteristics of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf]} under intermittent defoliation in a SPS with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S.T. Blake) in Sinop, Mato Grosso, Brazil. The experimental design was a randomized complete block arranged under a strip-split-plot, where the plots were allocated to four distances from the Eucalyptus grove (3, 6, 10, and 15-m) in the SPS, on both faces (north and south), with four replications. The evaluations were done during two summer rainy seasons (RS1 and RS2) and one dry season (DS). The herbage accumulation (HA) in RS1 (4290 kg DM ha?1) was 51% greater than in RS2. The greatest canopy height, light interception, and leaf area index (LAI) values were measured during RS1 (25 cm, 91%, and 3.5 cm2 cm?2, respectively). Leaf photosynthesis rate was less at the 3-m distance (12.5 μmol CO2 m?2 s?1) than at other distances (17.3 μmol CO2 m?2 s?1). We conclude that Marandu palisadegrass has the ability to physiologically adapt to shaded environments, although the dynamics along the whole tree growing cycle needs to be considered so that grass productivity can be sustained in the long-term. MenosThe understanding of plant morphological and physiological responses to shading can contribute to developing sustainable silvopastoral systems (SPS). Our objective was to evaluate the shading effect on herbage accumulation (HA), plant-part composition, physiology, and canopy structural characteristics of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf]} under intermittent defoliation in a SPS with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S.T. Blake) in Sinop, Mato Grosso, Brazil. The experimental design was a randomized complete block arranged under a strip-split-plot, where the plots were allocated to four distances from the Eucalyptus grove (3, 6, 10, and 15-m) in the SPS, on both faces (north and south), with four replications. The evaluations were done during two summer rainy seasons (RS1 and RS2) and one dry season (DS). The herbage accumulation (HA) in RS1 (4290 kg DM ha?1) was 51% greater than in RS2. The greatest canopy height, light interception, and leaf area index (LAI) values were measured during RS1 (25 cm, 91%, and 3.5 cm2 cm?2, respectively). Leaf photosynthesis rate was less at the 3-m distance (12.5 μmol CO2 m?2 s?1) than at other distances (17.3 μmol CO2 m?2 s?1). We conclude that Marandu palisadegrass has the ability to physiologically adapt to shaded environments, although the dynamics along the whole tree gro... Mostrar Tudo |
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Palavras-Chave: |
Brachiarão; Capim marandu. |
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Thesaurus NAL: |
Amazona brasiliensis; Amazonia; Forage; Livestock production; Physiological response; Plant morphology; Silvopastoral systems. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02508naa a2200313 a 4500
001 2110511
005 2019-12-04
008 2019 bl uuuu u00u1 u #d
100 1 $aGOMES, F. J.
245 $aShading Effects on Marandu Palisadegrass in a Silvopastoral System$bplant morphological and physiological responses.$h[electronic resource]
260 $c2019
520 $aThe understanding of plant morphological and physiological responses to shading can contribute to developing sustainable silvopastoral systems (SPS). Our objective was to evaluate the shading effect on herbage accumulation (HA), plant-part composition, physiology, and canopy structural characteristics of Marandu palisadegrass {Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster [syn. Brachiaria brizantha (Hochst. ex A. Rich.) Stapf]} under intermittent defoliation in a SPS with Eucalyptus urograndis (hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S.T. Blake) in Sinop, Mato Grosso, Brazil. The experimental design was a randomized complete block arranged under a strip-split-plot, where the plots were allocated to four distances from the Eucalyptus grove (3, 6, 10, and 15-m) in the SPS, on both faces (north and south), with four replications. The evaluations were done during two summer rainy seasons (RS1 and RS2) and one dry season (DS). The herbage accumulation (HA) in RS1 (4290 kg DM ha?1) was 51% greater than in RS2. The greatest canopy height, light interception, and leaf area index (LAI) values were measured during RS1 (25 cm, 91%, and 3.5 cm2 cm?2, respectively). Leaf photosynthesis rate was less at the 3-m distance (12.5 μmol CO2 m?2 s?1) than at other distances (17.3 μmol CO2 m?2 s?1). We conclude that Marandu palisadegrass has the ability to physiologically adapt to shaded environments, although the dynamics along the whole tree growing cycle needs to be considered so that grass productivity can be sustained in the long-term.
650 $aAmazona brasiliensis
650 $aAmazonia
650 $aForage
650 $aLivestock production
650 $aPhysiological response
650 $aPlant morphology
650 $aSilvopastoral systems
653 $aBrachiarão
653 $aCapim marandu
700 1 $aPEDREIRA, C. G. S.
700 1 $aBOSI, C.
700 1 $aCAVALLI, J.
700 1 $aHOLSCHUCH, S. G.
700 1 $aMOURÃO, G. B.
700 1 $aPEREIRA, D. H.
700 1 $aPEDREIRA, B. C. e
773 $tAgronomy Journal$gv. 111, n. 5, p. 1-9, 2019.
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