| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
28/03/2022 |
|
Data da última atualização: |
29/04/2022 |
|
Autoria: |
OLIVEIRA, M. G.; SANTOS, G. G. A.; LAQUES, A.-E.; THALÊS, M. C.; MITJA, D.; MIRANDA, I. S. |
|
Título: |
Métricas da paisagem e quantidade de habitat florestal em um mosaico agrícola, sudeste do Pará. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 42, e201902023, 2022. |
|
Páginas: |
p. 1-8. |
|
ISSN: |
1983-2605 |
|
DOI: |
https://doi.org/10.4336/2022.pfb.42e201902023 |
|
Idioma: |
Português |
|
Notas: |
Nota científica. |
|
Conteúdo: |
RESUMO. O objetivo deste estudo foi analisar a influência da estrutura da paisagem sobre a estrutura da vegetação, de acordo com a escala de investigação. O estudo foi desenvolvido no Assentamento Agroextrativista Praialta Piranheira, localizado em Nova Ipixuna, PA. Foi utilizado inventário florístico (variáveis da vegetação) e imagem de satélite (métricas da paisagem). As parcelas foram espacializadas em buffers com circunferências de 100, 200, 300 e 500 m. Observou-se influência das métricas da paisagem, em especial da quantidade de habitat florestal, sobre a estrutura da vegetação e a necessidade de se selecionar as métricas mais adequadas ao tipo de estudo realizado. TITLE. Landscape metrics and amount of forest habitat in an agricultural mosaic, Southeast of Pará. ABSTRACT. The objective of this study was to analyze the influence of the landscape structure on the vegetation structure and how this influence is affected by investigation scale. The study was carried out in the Agroextractivist Settlement Praialta Piranheira, Nova Ipixuna, Para State, Brazil. We used floristic inventory (vegetation variables) and satellite image (landscape metrics). The sample plots were spatialized in buffers (100, 200, 300 and 500 m of circumference). We observed influence of landscape metrics, especially the amount of forest habitat, on the vegetation structure and the importance to select the most suitable metrics considering the study objective. |
|
Palavras-Chave: |
Amazon; Diversidade de plantas; Forest fragments; Fragmentos florestais; Plant diversity. |
|
Thesaurus Nal: |
Amazonia. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/233004/1/EmbrapaFlorestas-PFB-2022-MetricasDaPaisagem.pdf
|
|
Marc: |
LEADER 02380naa a2200301 a 4500
001 2141388
005 2022-04-29
008 2022 bl uuuu u00u1 u #d
022 $a1983-2605
024 7 $ahttps://doi.org/10.4336/2022.pfb.42e201902023$2DOI
100 1 $aOLIVEIRA, M. G.
245 $aMétricas da paisagem e quantidade de habitat florestal em um mosaico agrícola, sudeste do Pará.$h[electronic resource]
260 $c2022
300 $ap. 1-8.
500 $aNota científica.
520 $aRESUMO. O objetivo deste estudo foi analisar a influência da estrutura da paisagem sobre a estrutura da vegetação, de acordo com a escala de investigação. O estudo foi desenvolvido no Assentamento Agroextrativista Praialta Piranheira, localizado em Nova Ipixuna, PA. Foi utilizado inventário florístico (variáveis da vegetação) e imagem de satélite (métricas da paisagem). As parcelas foram espacializadas em buffers com circunferências de 100, 200, 300 e 500 m. Observou-se influência das métricas da paisagem, em especial da quantidade de habitat florestal, sobre a estrutura da vegetação e a necessidade de se selecionar as métricas mais adequadas ao tipo de estudo realizado. TITLE. Landscape metrics and amount of forest habitat in an agricultural mosaic, Southeast of Pará. ABSTRACT. The objective of this study was to analyze the influence of the landscape structure on the vegetation structure and how this influence is affected by investigation scale. The study was carried out in the Agroextractivist Settlement Praialta Piranheira, Nova Ipixuna, Para State, Brazil. We used floristic inventory (vegetation variables) and satellite image (landscape metrics). The sample plots were spatialized in buffers (100, 200, 300 and 500 m of circumference). We observed influence of landscape metrics, especially the amount of forest habitat, on the vegetation structure and the importance to select the most suitable metrics considering the study objective.
650 $aAmazonia
653 $aAmazon
653 $aDiversidade de plantas
653 $aForest fragments
653 $aFragmentos florestais
653 $aPlant diversity
700 1 $aSANTOS, G. G. A.
700 1 $aLAQUES, A.-E.
700 1 $aTHALÊS, M. C.
700 1 $aMITJA, D.
700 1 $aMIRANDA, I. S.
773 $tPesquisa Florestal Brasileira, Colombo$gv. 42, e201902023, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
08/02/2017 |
|
Data da última atualização: |
22/03/2017 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
JESUS, O. N. de; SOARES, T. L.; OLIVEIRA, E. J. de; SANTOS, T. C. P.; FARIAS, D. H.; BRUCKNER, C. H.; NOVAES, Q. S. |
|
Afiliação: |
ONILDO NUNES DE JESUS, CNPMF; T. L. SOARES; EDER JORGE DE OLIVEIRA, CNPMF; T. C. P. SANTOS; D. H. FARIAS; C. H. BRUCKNER; Q. S. NOVAES. |
|
Título: |
Dissimilarity based on morphological characterization and evaluation of pollen viability and in vitro germination in Passiflora hybrids and backcrosses. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Acta Horticulturae, 1127, 2016 |
|
Série: |
0567-7572 |
|
Idioma: |
Inglês |
|
Notas: |
XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in Horticulture |
|
Conteúdo: |
Brazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progenies. The progenies of the BC1 will also be evaluated in the future with molecular markers aiming to accelerate the selection of hybrids with higher percentages of the genome of the recurrent parent. MenosBrazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progen... Mostrar Tudo |
|
Palavras-Chave: |
Passionfruit. |
|
Thesagro: |
Maracujá. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02569nam a2200229 a 4500
001 2063046
005 2017-03-22
008 2016 bl uuuu u00u1 u #d
100 1 $aJESUS, O. N. de
245 $aDissimilarity based on morphological characterization and evaluation of pollen viability and in vitro germination in Passiflora hybrids and backcrosses.$h[electronic resource]
260 $aActa Horticulturae, 1127$c2016
490 $a0567-7572
500 $aXXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in Horticulture
520 $aBrazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progenies. The progenies of the BC1 will also be evaluated in the future with molecular markers aiming to accelerate the selection of hybrids with higher percentages of the genome of the recurrent parent.
650 $aMaracujá
653 $aPassionfruit
700 1 $aSOARES, T. L.
700 1 $aOLIVEIRA, E. J. de
700 1 $aSANTOS, T. C. P.
700 1 $aFARIAS, D. H.
700 1 $aBRUCKNER, C. H.
700 1 $aNOVAES, Q. S.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
