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Biblioteca(s):  Embrapa Clima Temperado.
Data corrente:  08/06/2020
Data da última atualização:  08/06/2020
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  SANTOS, R. F. dos; MARQUES, L. O. D.; MELLO-FARIAS, P.; MARTINS, C. R.; KONZEN, L. H.; CARVALHO, I. R.; MALGARIM, M. B.
Afiliação:  RODRIGO FERNANDES DOS SANTOS; LÉO OMAR DUARTE MARQUES; PAULO MELLO-FARIAS; CARLOS ROBERTO MARTINS, CPACT; LUIS HENRIQUE KONZEN; IVAN RICARDO CARVALHO; MARCELO BARBOSA MALGARIM.
Título:  Budbreak induction in kiwifruit vines cultivated in an organic system by the biological method of single node cutting.
Ano de publicação:  2020
Fonte/Imprenta:  Bragantia, Campinas, v. 79, n. 2, p. 260-267, abr./jun. 2020.
Páginas:  8 p.
ISSN:  1678-4499
DOI:  https://doi.org/10.1590/1678-4499.20190321
Idioma:  Inglês
Conteúdo:  Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of alternative rest-breaking agents in kiwifruit vines by using the biological method of single node cutting. Twigs of the cultivar Bruno were collected in an organic orchard in Pelotas, a city located in Rio Grande do Sul state, Brazil. Seven-centimeter-long cuts with a single shoot at the ends were segmented. Cuttings were placed on plastic trays with phenolic foam and soaked in water, at 85% relative humidity on average, and kept in bio-oxygen demand (BOD) incubators at 25± 1 °C and a 16-h photoperiod. Budbreak was evaluated in 2-day and 3-day intervals. The experiment was conducted in a completely randomized design with ten treatments and three replications of ten sampling units each. The following variables were analyzed: average budbreak time (ABT), final budbreak rate (FBR), vigorous budbreak rate (VBR), velocity of budbreak (VB), percentage of open buds (POB) and dormancy index (DI). The rest-breaking agent garlic extract (GE) 10% + mineral oil (MO) 2% was the most efficient one in budbreak induction in both production cycles. Thus, this dose is recommended for budbreak induction in kiwifruit vines grown in an organic system.
Palavras-Chave:  Cultivar Bruno.
Thesagro:  Brotacao; Kiwi.
Categoria do assunto:  --
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/213838/1/0006-8705-brag-1678-449920190321.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Clima Temperado (CPACT)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CPACT21606 - 1UPCAP - DD
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Registro Completo

Biblioteca(s):  Embrapa Solos.
Data corrente:  13/08/2014
Data da última atualização:  05/01/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  A - 1
Autoria:  LIMA, A. B.; CANNAVAN, F. S.; NAVARRETE, A. A.; TEIXEIRA, W. G.; KURAMAE, E. E.; TSAI, S. M.
Afiliação:  Amanda Barbosa Lima, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; Fabiana Souza Cannavan, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; Acacio Aparecido Navarrete, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; WENCESLAU GERALDES TEIXEIRA, CNPS; Eiko Eurya Kuramae, Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW).; Siu Mui Tsai, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture.
Título:  Amazonian dark earth and plant species from the Amazon region contribute to shape rhizosphere bacterial communities.
Ano de publicação:  2015
Fonte/Imprenta:  Microbial Ecology, v. 69, n. 4, p. 855-866, May 2015.
DOI:  10.1007/s00248-014-0472-8
Idioma:  Inglês
Conteúdo:  Amazonian Dark Earths (ADE) or Terra Preta de Índio formed in the past by pre-Columbian populations are highly sustained fertile soils supported by microbial communities that differ from those extant in adjacent soils. These soils are found in the Amazon region and are considered as a model soil when compared to the surrounding and background soils. The aim of this study was to assess the effects of ADE and its surrounding soil on the rhizosphere bacterial communities of two leguminous plant species that frequently occur in the Amazon region in forest sites (Mimosa debilis) and open areas (Senna alata). Bacterial community structure was evaluated using terminal restriction fragment length polymorphism (TRFLP) and bacterial community composition by V4 16S rRNA gene region pyrosequencing. T-RFLP analysis showed effect of soil types and plant species on rhizosphere bacterial community structure. Differential abundance of bacterial phyla, such as Acidobacteria, Actinobacteria, Verrucomicrobia, and Firmicutes, revealed that soil type contributes to shape the bacterial communities. Furthermore, bacterial phyla such as Firmicutes and Nitrospira were mostly influenced by plant species. Plant roots influenced several soil chemical properties, especially when plants were grown in ADE. These results showed that differences observed in rhizosphere bacterial community structure and composition can be influenced by plant species and soil fertility due to variation in soil attributes.
Palavras-Chave:  Comunidade de bactéria de rizosfera; Terra preta de índio.
Categoria do assunto:  P Recursos Naturais, Ciências Ambientais e da Terra
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Solos (CNPS)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPS18401 - 1UPCAP - DD2014.00542
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