Consulta: subjectFacets:"Germplasm conservation"
Registros recuperados: 15
Data/hora: 10/06/2024 09:12:05

Criopreservação por vitrificação em gotas de plúmulas de embriões zigóticos de coqueiro anão verde do Brasil de Jiqui.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: LEDO, A. da S.; SANTANA, F. V.; OLIVEIRA, A. C. A. de; MACHADO, C. de A.; SILVA, A. V. C. da; RAMOS, S. R. R.
bitstream/item/219217/1/COT-233-Ana-Ledo.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Coco; Genética Vegetal; Germoplasma; Banco de Germoplasma; Criopreservação; Coconuts; Germplasm; Germplasm conservation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128149

Manual de gestão do banco ativo de germoplasma de abacaxi.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SOUZA, F. V. D.; AUD, F. F.; SOUZA, E. H. de; FERREIRA, F. R.; SANTOS, G. S.
O banco de abacaxi localizado na Embrapa Mandioca e Fruticultura está entre os mais antigos da Empresa, tendo sido estabelecido em 1975 a partir de 39 acessos recebidos do Instituto Agronômico de Campinas. A ampliação dessa coleção começou a partir de 1979, quando a Embrapa Recursos Genéticos e Biotecnologia e a Embrapa Mandioca e Fruticultura iniciaram várias expedições de coleta em regiões prioritárias do Brasil e atividades de intercâmbio. Esse banco constituiu-se na maior coleção de germoplasma de abacaxi do mundo e atualmente conta com 764 acessos conservados, tanto em condições de campo, quanto em telado, com uma duplicata de segurança in vitro. Durante muitos anos o público-alvo desse banco foi apenas o programa de melhoramento genético voltado para...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Abacaxi; Banco de Germoplasma; Pineapples; Germplasm conservation.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136486

Coleção de Microrganismos Patogênicos a Caprinos e Ovinos - CMPCO.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: FACCIOLI-MARTINS, P. Y.; SOUZA, V. de; PINHEIRO, R. R.
Resumo: Esta publicação tem por objetivo descrever a história, a composição da Coleção de trabalho de Microrganismos Patogênicos a Caprinos e Ovinos, e de que forma ela tem conservado, caracterizado, documentado e utilizado seus isolados. A coleção foi criada em 2012 e atualmente é composta por 141 cepas bacterianas e seis cepas virais, pertencentes às espécies Corynebacterium pseudotuberculosis, Staphylococcus aureus e ao gênero Lentivirus. Esses isolados são utilizados para produção de antígenos para imunodiagnósticos, em diagnósticos moleculares e na avaliação de resistência a antimicrobianos e ação de anti-sépticos e antimicrobianos. Participa de projetos das coleções institucionais e de gestão da qualidade. [Collection of Goat and Sheep Pathogenic...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Caracterização; Germplasm bank; Characterization; Diagnosis; Quality; Pathogenic Microorganisms; Caprino; Ovino; Banco de Germoplasma; Conservação; Resistência Genética; Diagnostico; Qualidade; Sheep diseases; Goat diseases; Germplasm conservation; Conservation banks; Genetic resistance; Small ruminants; Brazil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123793

Levantamento de germoplasma de arroz (Oryza sativa L) e algumas considerações sobre o seu cultivo em Rondônia.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SOBRAL, C. A. M.; FONSECA, J. R.
Descreve levantamento feito sobre as cultivares de arroz plantadas nas principais regioes produtoras em Rondonia. Foi identificada a cultivar "agulhinha" como a mais plantada, onde, de acordo com produtores, e altamente produtiva e com excelente tipo de grao.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rondônia; Amazônia Ocidental; Western Amazon; Arroz; Oryza Sativa; Germoplasma; Banco de Germoplasma; Rice; Germplasm; Plant cultural practices; Germplasm conservation.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698068

Conservação de germoplasma de patauá e bacaba (Complexo Oenocarpus/Jessenia).
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: OLIVEIRA, M. do S. P. de; MOTA, M. G. da C.; ANDRADE, E. B. de.
bitstream/item/60197/1/CPATU-PA151.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Conservação de germoplasma; Jessenia batava.; Bacaba; Melhoramento; Patauá.; Oenocarpus; Germplasm conservation; Plant breeding.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374127

Seed viability of active collections in ex-situ genebanks: an analysis of sorghum germplasm conserved at ICRISAT genebank
Provedor de dados: Open Acess Agriculture Research Repository
Autores: Sastry, D.V.S.S.R.
Palavras-chave: Seed viability; Gene banks; Sorghum; Grain; Germplasm; Regeneration; Relative humidity; Protocols; Seed treatment; Germplasm conservation.
Ano: 2008
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3116

Tolerance of jenipapo seeds to cryoprotectants and thawing after immersion in liquid nitrogen
Provedor de dados: PFB - Pesquisa Florestal Brasileira
Autores: Sobrinho, Severino de Paiva; Albuquerque, Maria Cristina de Figueiredo e; Luz, Petterson Baptista da; Neves, Leonarda Grillo; Camili, Elisangela Clarete.
The objective of this study was to evaluate the effects of two cryoprotectants followed by thawing on the physiological potential of Genipa americana L. seeds. Two experiments testing 12 treatments were conducted, one for each cryoprotectant, both in a factorial scheme of 6 × 2 (cryoprotectant concentrations × thawing methods). We tested 0, 5, 10, 15, 20, and 25% for dimethyl sulfoxide, and 0, 0.25, 0.5, 0.75, 1.0, and 1.25 M for sucrose. The thawing methods were fast (38 °C for 30 min) and slow (25 °C for 4 h). The seeds were immersed in the cryoprotectant solution for 3 h, stored for 120 h, and then thawed. The seeds were then sown in substrate (sand and vermiculite, 1:1). Emergence percentage along with speed index, length, fresh and dry matter mass of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais Genipa americana; Germplasm conservation; Seed preservation Genipa americana; Conservação de germoplasma; Conservação de sementes.
Ano: 2017
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1145

Rescue of a non-viable accession and rapd analysis of recovered plants of Arachis retusa
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Gagliardi,Rachel Fatima; Pacheco,Georgia Pereira; Oliveira,Carlos Alberto; Carneiro,Leonardo Alves; Valls,José Francisco Montenegro; Vieira,Maria Lucia Carneiro; Mansur,Elisabeth.
In vitro regeneration of Arachis retusa was examined for the purpose of germplasm renewal and conservation. Random amplified polymorphic DNA (RAPD) fingerprinting was used to evaluate the genetic stability of plants derived from embryo axes and apical segments. Ten arbitrary decamer primers were screened and five of them were selected. Ninety genomic regions were evaluated, with an average of 18 loci per clone. All amplified segments were monomorphic. The results indicate that recovered plants are genetically stable at the assessed genomic regions and that both regeneration processes are suitable for in vitro germplasm preservation of Arachis species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germplasm conservation; Micropropagation; Molecular characterization; Genetic stability.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000200015

IDENTIFYING APPROPRIATE GERMPLASM FOR PARTICIPATORY BREEDING: AN EXAMPLE FROM THE CENTRAL VALLEYS OF OAXACA, MEXICO
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Bellon,   Mauricio R.; Smale,   Melinda; Aguirre,   Alfonso; Taba,   Suketoshi; Aragon,   Flavio; Diaz,   Jaime; Castro,   Humberto.
Identifying the appropriate germplasm to be improved is a key component of any participatory breeding effort because of its implications for impacts on social welfare and genetic diversity. This paper describes a method developed to select a subset of 17 populations for a participatory breeding project from a set of 152 maize landraces. The larger set of landraces was collected in order to characterize, for conservation purposes, the maize diversity present in the Central Valleys of Oaxaca, Mexico. The method combines data representing the perspectives of both men and women members of farm households and those of genetic resources specialists, including professional plant breeders, gene bank managers, and social scientists. The different perspectives...
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Oaxaca; Maize; Zea mays; Land race; Germplasm conservation; Plant breeding; Selecting; Innovation adoption; Social welfare; Welfare economics; On farm research; Participatory research; Farm Management.
Ano: 2000
URL: http://purl.umn.edu/46524

Costing the Ex Situ Conservation of Genetic Resources: Maize and Wheat at CIMMYT
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Pardey,   Philip G.; Koo,   Bonwoo; Wright,   Brian D.; Van Dusen,   M. Eric; Skovmand,   Bent; Taba,   Suketoshi.
Worldwide, the number of genebanks and the amount of seed stored in them has increased substantially over the past few decades. Most attention is focused on the likely benefits from conservation, but conserving germplasm involves costs whose nature and magnitude are largely unknown. Because more resources spent on conserving germplasm often means less spent on characterizing the collection or using the saved seeds in crop-improvement research, knowledge of the costs of germplasm conservation has important, possibly long run, R&amp;D management, policy, and food-security consequences. Moreover, these costs place a lower bound on the benefits deemed likely to justify the expense of saving this seed. In this paper we compile and use a set of cost data for...
Tipo: Working or Discussion Paper
Palavras-chave: Germplasm conservation; Gene banks; Plant; Maize -- Breeding; Wheat -- Breeding; Rate of return; Resource /Energy Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/97509

Diversity and genetic struture in cajá tree (spondias mombin l.) populations in northeastern Brazil
Provedor de dados: Revista Brasileira de Fruticultura
Autores: Silva,Edson Ferreira da; Martins,Luiza Suely Semen; Oliveira,Visêldo Ribeiro de.
Spondias mombin L. is a fruit tree from the American continent from the Anacardiaceae family. In Brazil it is common in different vegetation types but is more frequent in the Atlantic and Amazonian rainforests. It is economically important because of its fruits, which are widely consumed raw or processed as fruit jellies, juices and ice creams. The leaves have great importance in the pharmaceutical industry because of their antibacterial properties. In the state of Pernambuco, cajá tree is widely distributed in the Zona da Mata region and less frequently in the Agreste and Sertão areas. In this work diversity and genetic structure were studied in four populations of cajá tree from Pernambuco's Zona da Mata, Northeast Brazil, using isozymes polymorphism...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic diversity; Germplasm conservation; Isozymes.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452009000100024

Residual effect of growth regulators in etiolation and regeneration of in vitro pineapple plants
Provedor de dados: Revista Brasileira de Fruticultura
Autores: Souza,Fernanda Vidigal Duarte; Canto,Ana Maria Mascarenhas Eloy; Souza,Antônio da Silva; Costa,Maria Angélica Pereira de Carvalho.
This work aimed to evaluate the influence of naphthaleneacetic acid (NAA) and gibberellic acid (GA3) plant regulators in in vitro etiolation and subsequent regeneration of the PE x SC-60 pineapple hybrid. Nodal segments of in vitro plants with approximately 5-7 cm height were incubated in basic MS culture medium supplemented with 0.0; 0.5 and 1.0 mg L-1 of naphthaleneacetic acid (NAA) in combination with gibberellic acid (GA3) in concentrations of 0.0; 0.5 and 1.0 mg L-1, and maintained at 27 ºC under dark condition. Evaluations were carried out at 90 and 180 days after incubation period. The best results for length of etiolated stems were obtained with 1.0 mg L-1 of NAA. In the experiment followed by the regeneration, stems with 3 cm from the etiolation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus var. comosus; In vitro culture; Plant regulators; Nodal segments; Germplasm conservation; Micropropagation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000200035

Diversidade genética de populações naturais de Pfaffia glomerata (Spreng.) Pedersen estimada por marcadores RAPD - DOI: 10.4025/actasciagron.v31i3.548
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Kamada, Takeshi; FESURV; Picoli, Edgard Augusto de Toledo; UFV; Alfenas, Acelino Couto; UFV; Cruz, Cosme Damião; UFV; Vieira, Roberto Fontes; EMBRAPA; Otoni, Wagner Campos; UFV.
Pfaffia glomerata é uma espécie nativa da América do Sul e de ocorrência natural em alguns Estados do Brasil. Porém, as populações naturais de fáfia têm sido ameaçadas em decorrência do intenso extrativismo, em virtude de suas propriedades terapêuticas de interesse. No presente estudo, objetivou-se estimar a diversidade genética de quatro populações naturais oriundas da bacia do Rio Paraná. Os indivíduos foram multiplicados in vitro e caracterizados de acordo com o padrão eletroforético de marcadores RAPD, utilizando-se 268 marcas polimórficas obtidas a partir de 67 primers. As estimativas de distância genética foram obtidas pelo complemento aritmético do coeficiente de Nei e Li, e os genótipos agrupados de acordo com o método UPGMA. Três populações...
Palavras-chave: 5.01.00.00-9    Agronomia ‘ginseng brasileiro’; Conservação de germoplasma; Melhoramento vegetal 5.01.03.05-9 brazilian-ginseng; Germplasm conservation; Plant breeding.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/548

First collection of landrace vegetable crops cultivated in Valle Fértil, Argentina
Provedor de dados: Agriscientia
Autores: Asprelli,P.D.; Lorello,I.M.; Occhiuto,P.N.; Togno,L.S.; Makuch,M.A.; García Lampasona,S.C.; Peralta,I.E.
The richness of the cultural values found in the Argentinean Andean communities is integrated by a varied diversity of genetic resources, the development of a sustainable agriculture, and the conservation of the producer's own seeds. Local agriculture is a family economic activity, in which traditional varieties of vegetable landraces are highly appreciated for their flavour, colour and aromas. However; social, economic and environmental factors have an effect on crop diversity conservation. The main aim of this work was to retrieve and maintain a representative collection of traditional crop genetic resources still cultivated in the District of Valle Fértil, San Juan Province, Argentina, and to document the farmers' crop experiences and uses. Fifty...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vegetable landraces; Agricultural biodiversity; Genetic erosion; Germplasm conservation.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2012000100005

Behavior and preservation of an in vitro collection of European aspen in Spain
Provedor de dados: Biocell
Autores: Martin,M.T.; Pedranzani,H.E.; Sierra de Grado,R.
An in vitro collection has been established with selected European aspen from Palencia province (Spain). Currently, this collection includes 32 high quality clones, selected for their good bearing and healthy state. Most of them belong to different discrete local populations. Populus tremula L. was propagated in proliferation Aspen Culture Medium; they required subculture every 3 months. The purpose of this study was, therefore, to select a medium which allows the maintenance of 32 clones for a period longer than 3 months without subculture and to observe the behavior of those clones in 15 different culture medium compositions. Seven nodal cutting stem explants from each clone were cultured in parallel in the different media. One and three months after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Populus tremula; Germplasm conservation; In vitro plant culture; Micropropagation; Selected clone.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452007000100005