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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/09/2011 |
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Data da última atualização: |
23/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LAZZAROTTO, C. M.; LAZZARI, S. M. N.; PENTEADO, S. do R. C. |
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Afiliação: |
UFPR; UFPR; SUSETE DO ROCIO CHIARELLO PENTEADO, CNPF. |
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Título: |
Feeding behavior of two exotic aphid species on their original hosts in a new invaded area. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Neotropical Entomology, v. 40, n. 3, p. 316-321, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Greenidea ficicola Takahashi and Greenidea psidii van der Goot (Aphididae: Greenideinae) are Asian aphid species newly introduced in Brazil associated with Moraceae and Myrtaceae. The feeding behavior of G. ficicola and G. psidii was investigated on their respective host plants, Ficus benjamina (Moraceae) and Psidium guajava (Myrtaceae), using the Electrical Penetration Graph (EPG). Fifteen females of each aphid species were monitored during 24h using a DC-EPG GIGA-4 monitor. The time spent in phloem phase (waveforms E1 and E2) was 13.6% of the total recording time for G. ficicola and 0.8% for G. psidii. The average time in the pathway phase (waveforms C and pd) represented 50% of the total time for both species. Aphids spent more time in non-penetration and stylet pathway activities than in the phloem phase or actual feeding. The principal component analysis (PCA) showed that the two species formed different groups in relation to EPG parameters, despite some overlapping. The probing patterns with multiple penetrations of short duration in the sieve elements for both species may indicate apparent unsuitability for sustained feeding on their respective host plants. These results suggest that these two exotic species are in the process of adaptation to their host plants in their new environment and/or the plants may present either chemical or physical barriers against these insects. |
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Palavras-Chave: |
Comportamento alimentar. |
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Thesagro: |
Afídeo; Hospedeiro. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01962naa a2200181 a 4500
001 1899551
005 2015-02-23
008 2011 bl uuuu u00u1 u #d
100 1 $aLAZZAROTTO, C. M.
245 $aFeeding behavior of two exotic aphid species on their original hosts in a new invaded area.$h[electronic resource]
260 $c2011
520 $aGreenidea ficicola Takahashi and Greenidea psidii van der Goot (Aphididae: Greenideinae) are Asian aphid species newly introduced in Brazil associated with Moraceae and Myrtaceae. The feeding behavior of G. ficicola and G. psidii was investigated on their respective host plants, Ficus benjamina (Moraceae) and Psidium guajava (Myrtaceae), using the Electrical Penetration Graph (EPG). Fifteen females of each aphid species were monitored during 24h using a DC-EPG GIGA-4 monitor. The time spent in phloem phase (waveforms E1 and E2) was 13.6% of the total recording time for G. ficicola and 0.8% for G. psidii. The average time in the pathway phase (waveforms C and pd) represented 50% of the total time for both species. Aphids spent more time in non-penetration and stylet pathway activities than in the phloem phase or actual feeding. The principal component analysis (PCA) showed that the two species formed different groups in relation to EPG parameters, despite some overlapping. The probing patterns with multiple penetrations of short duration in the sieve elements for both species may indicate apparent unsuitability for sustained feeding on their respective host plants. These results suggest that these two exotic species are in the process of adaptation to their host plants in their new environment and/or the plants may present either chemical or physical barriers against these insects.
650 $aAfídeo
650 $aHospedeiro
653 $aComportamento alimentar
700 1 $aLAZZARI, S. M. N.
700 1 $aPENTEADO, S. do R. C.
773 $tNeotropical Entomology$gv. 40, n. 3, p. 316-321, 2011.
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Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Pecuária Sudeste. |
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Data corrente: |
04/02/2021 |
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Data da última atualização: |
07/12/2021 |
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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: |
TESK, C. R. M.; ABREU, J. G. de; PEREIRA, D. H.; SOLLENBERGER, L. E.; MATTA, F. de P.; PEDREIRA, B. C. e. |
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Afiliação: |
CÁTIA REGINA MACAGNAN TESK, UFMT, Cuiabá-MT; JOADIL GONÇALVES DE ABREU, UFMT, Cuiabá-MT; DALTON HENRIQUE PEREIRA, UFMT, Sinop-MT; LYNN E. SOLLENBERGER, UNIVERSITY of FLORIDA, Gainsville-FL; FREDERICO DE PINA MATTA, CPPSE; BRUNO CARNEIRO E PEDREIRA, CPAMT. |
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Título: |
Herbage accumulation, canopy characteristics, and nutritive value of tropical grasses in the Amazon biome. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Crop Science, v. 60, n. 5, p. 2782-2791, 2020. |
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DOI: |
http://doi.org/10.1002/csc2.20202 |
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Idioma: |
Inglês |
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Conteúdo: |
Forage species diversification reduces risk associated with forage?livestock production. In the Amazon biome, an alternative is needed to ?Marandu? palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] because of Marandu death syndrome. Our objective was to compare herbage accumulation (HA), canopy characteristics, and nutritive value of Marandu with two alternative grasses, ?Guará? (Paspalum regnellii Mez) and ?Tupi? [Urochloa humidicola (Rendle) Morrone & Zuloaga]. During 2 yr, grasses were clipped to a 12-cm stubble height every 28 (rainy season) or 42 d (dry season). Annual HA did not differ across years for Guará (13.7 Mg dry matter [DM] ha−1) and Tupi (12.2 Mg DM ha−1); however, Marandu HA was 30% less in the second than the first year. Marandu had greatest annual HA in the first year (15.5 Mg DM ha−1), and Guará was superior to the other grasses in the second year (13.5 Mg DM ha−1). Tupi had the least leaf proportion among grasses in both rainy and dry seasons, and its leaf proportion was greater in the dry than rainy season (715 vs. 610 g kg−1). Greatest stem proportion was observed in Tupi and the least stubble mass occurred in Guará (2000 kg DM ha−1). When differences in crude protein occurred, Tupi concentrations (80?130 g kg−1) were less than either Guará (97?157 g kg−1) or Marandu (81?139 g kg−1). Overall, Tupi and Guará HA and nutritive value support their recommendation as alternatives to Marandu monoculture in Amazon forage-based livestock systems. MenosForage species diversification reduces risk associated with forage?livestock production. In the Amazon biome, an alternative is needed to ?Marandu? palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] because of Marandu death syndrome. Our objective was to compare herbage accumulation (HA), canopy characteristics, and nutritive value of Marandu with two alternative grasses, ?Guará? (Paspalum regnellii Mez) and ?Tupi? [Urochloa humidicola (Rendle) Morrone & Zuloaga]. During 2 yr, grasses were clipped to a 12-cm stubble height every 28 (rainy season) or 42 d (dry season). Annual HA did not differ across years for Guará (13.7 Mg dry matter [DM] ha−1) and Tupi (12.2 Mg DM ha−1); however, Marandu HA was 30% less in the second than the first year. Marandu had greatest annual HA in the first year (15.5 Mg DM ha−1), and Guará was superior to the other grasses in the second year (13.5 Mg DM ha−1). Tupi had the least leaf proportion among grasses in both rainy and dry seasons, and its leaf proportion was greater in the dry than rainy season (715 vs. 610 g kg−1). Greatest stem proportion was observed in Tupi and the least stubble mass occurred in Guará (2000 kg DM ha−1). When differences in crude protein occurred, Tupi concentrations (80?130 g kg−1) were less than either Guará (97?157 g kg−1) or Marandu (81?139 g kg−1). Overall, Tupi and Guará HA and nutritive value support their recommendation as alternatives to Ma... Mostrar Tudo |
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Palavras-Chave: |
Capim marandu; Guará; Mato Grosso; Paspalum regnellii Mez; Sinop-MT; Tupi. |
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Thesagro: |
Brachiaria Humidicola; Capim Urochloa; Forragem; Gado; Gramínea Tropical; Pastagem. |
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Thesaurus NAL: |
Amazona brasiliensis; Amazonia; Canopy; Neutral detergent fiber; Nutritive value; Sward; Urochloa brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02739naa a2200421 a 4500
001 2129815
005 2021-12-07
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1002/csc2.20202$2DOI
100 1 $aTESK, C. R. M.
245 $aHerbage accumulation, canopy characteristics, and nutritive value of tropical grasses in the Amazon biome.$h[electronic resource]
260 $c2020
520 $aForage species diversification reduces risk associated with forage?livestock production. In the Amazon biome, an alternative is needed to ?Marandu? palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] because of Marandu death syndrome. Our objective was to compare herbage accumulation (HA), canopy characteristics, and nutritive value of Marandu with two alternative grasses, ?Guará? (Paspalum regnellii Mez) and ?Tupi? [Urochloa humidicola (Rendle) Morrone & Zuloaga]. During 2 yr, grasses were clipped to a 12-cm stubble height every 28 (rainy season) or 42 d (dry season). Annual HA did not differ across years for Guará (13.7 Mg dry matter [DM] ha−1) and Tupi (12.2 Mg DM ha−1); however, Marandu HA was 30% less in the second than the first year. Marandu had greatest annual HA in the first year (15.5 Mg DM ha−1), and Guará was superior to the other grasses in the second year (13.5 Mg DM ha−1). Tupi had the least leaf proportion among grasses in both rainy and dry seasons, and its leaf proportion was greater in the dry than rainy season (715 vs. 610 g kg−1). Greatest stem proportion was observed in Tupi and the least stubble mass occurred in Guará (2000 kg DM ha−1). When differences in crude protein occurred, Tupi concentrations (80?130 g kg−1) were less than either Guará (97?157 g kg−1) or Marandu (81?139 g kg−1). Overall, Tupi and Guará HA and nutritive value support their recommendation as alternatives to Marandu monoculture in Amazon forage-based livestock systems.
650 $aAmazona brasiliensis
650 $aAmazonia
650 $aCanopy
650 $aNeutral detergent fiber
650 $aNutritive value
650 $aSward
650 $aUrochloa brizantha
650 $aBrachiaria Humidicola
650 $aCapim Urochloa
650 $aForragem
650 $aGado
650 $aGramínea Tropical
650 $aPastagem
653 $aCapim marandu
653 $aGuará
653 $aMato Grosso
653 $aPaspalum regnellii Mez
653 $aSinop-MT
653 $aTupi
700 1 $aABREU, J. G. de
700 1 $aPEREIRA, D. H.
700 1 $aSOLLENBERGER, L. E.
700 1 $aMATTA, F. de P.
700 1 $aPEDREIRA, B. C. e
773 $tCrop Science$gv. 60, n. 5, p. 2782-2791, 2020.
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