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| Registros recuperados: 43 | |
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| Ferreira,Mariane Gonçalves; Azevedo,Alcinei Mistico; Siman,Luhan Isaac; da Silva,Gustavo Henrique; Carneiro,Clebson dos Santos; Alves,Flávia Maria; Delazari,Fábio Teixeira; da Silva,Derly José Henriques; Nick,Carlos. |
| ABSTRACT Germplasm classification by species requires specific knowledge on/of the culture of interest. Therefore, efforts aimed at automation of this process are necessary for the efficient management of collections. Automation of germplasm classification through artificial neural networks may be a viable and less laborious strategy. The aims of this study were to verify the classification potential of Capsicum accessions regarding/ the species based on morphological descriptors and artificial neural networks, and to establish the most important descriptors and the best network architecture for this purpose. Five hundred and sixty-four plants from 47 Brazilian Capsicum accessions were evaluated. Neural networks of multilayer perceptron type were used in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum spp.; Garson’s method; Artificial intelligence; Taxonomy; Germplasm bank. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300203 |
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| LIMA, M. F.; DIAS, R. de C. S.; QUEIROZ, M. A. de. |
| Avaliou-se a resistencia de 77 acessos de melancia, coletados em Pernambuco, Bahia e Maranhao, pertencentes ao BAG da Embrapa Semi-Arido, Petrolina, PE, ao virus do mosaicoo da melancia- II (Watermelon mosaic virus- II- WMVII). O experimento foi conduzido em casa telada (anti-afideos) com sistema de ar forcado, a atemperatura de 25-30 oC. O delineamento foi blocos ao acaso, com 4 repeticoes e 5 plantas por parcela. Como inoculo, folhas de aboboreira (Cucurbita pepo), cv. Caserta, provenientes de plantas inoculadas mecanicamente com um isolado de WMV- II, em casa-de-vegetacao, foram maceradas na diluicao 1:10 (p:v), em tampao fosato 0,02 M, Ph 7,0, contendo 0,1% de Na2SO3. Fizeram-se 2 inoculacoes de WMV- II em plantulas, previamente pulverizadas com... |
| Tipo: Parte de livro |
Palavras-chave: Avaliacao; Watermelon; Germplasm bank; Diseases; Valuation; Banco de Germoplasma; Citrullus Lanatus; Doença; Melancia; Mosaico; Vírus. |
| Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132392 |
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| LIMA, M. F.; SENA, L. C. N.; QUEIROZ, M. A. de. |
| Avaliou-se a resistencia de 20 acessos de abobora (Cucurbita spp.), procedentes da Bahia e Maranhao, pertencentes ao BAG da Embrapa Semi-Arido, Petrolina, PE, ao fungo P. capsici. O ensaio foi conduzido em casa-de-vegetacao, em delineamento de blocos ao acaso, com 3 repeticoes e 5 plantas por parcela. A cvs. Jacarezinho e Caserta foram utilizadas como padrao de suscetibilidade e 'Seco Melhorada', padrao de resistencia intermediaria ao fungo. Um isolado de P. capsici, obtido de plantas de abobora com sintomas da doenca, foi cultivado em meio V-8 modificado (Fitopatol. Bras., (7):55-61, 1982), sob luz cotiledonar, 10 dias apos o plantio das sementes em solo esterilizado com brometo de metila, pela deposicao de 3,0 ml de suspensao de inoculo (6,7 x 10(4)... |
| Tipo: Parte de livro |
Palavras-chave: Avaliacao; Germplasm bank; Diseases; Abóbora; Banco de Germoplasma; Doença; Phytophthora Capsici; Cucurbita; Pumpkins. |
| Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132404 |
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| 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 |
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| KALIL FILHO, A. N.; LUZ, A. I. R.; SÁ SOBRINHO, A. F. de; WOLTER, E. L. A.; PEREIRA JÚNIOR, O. L.. |
| Visando o melhoramento genetico da sacaca, foi instalado um Banco Ativo de Germoplasma (BAG) na Embrapa Amazonia Ocidental. Estao sendo feitas coletas e multiplicacao vegetativa de acesso de sacaca de diversos locais da Amazonia. O BAG-Sacaca visa nao somente a conservacao do germoplasma, mas o estudo da variabilidade genetica entre acesso, para selecao de genotipos superiores para producao de biomassa (folhas), e com maior potencial de producao de oleos essenciais. Ate o presente, foram coletados 15 acessos. Dentro de procedencias foram detectados dois ecotipos: sacaca branca e roxa ou vermelha. Esta com folhas maiores e de cor verde-escura, parecendo possuir maior teor de oleo. Entretanto, analise preliminar de oleo, sujeito a confirmacao, evidencia a... |
| Tipo: Outras publicações técnicas (INFOTECA-E) |
Palavras-chave: Sacaca; Brasil; Amazonas; Germplasm bank; Oil.; Banco de Germoplasma; Óleo.; Croton cajucara.. |
| Ano: 1998 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667997 |
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| Vettorazzi, Renato Gobbi; Carvalho, Virginia Silva; Sudré, Cláudia Pombo; Rodrigues, Rosana. |
| This study aimed to develop a protocol for the in vitro conservation of 30 accessions of sweet potato collected in the northern region of Rio de Janeiro State, Brazil, aiming to extend the period between subcultures for this species. An in vitro minimal growth experiment was established with accession UENF 1931 in a factorial arrangement consisting of four concentrations of mineral salts in MS medium and four concentrations of sucrose, at two temperatures. The others accessions were grown in medium containing 100% MS salts and 2% sucrose, which was the medium that allowed the in vitro conservation of accession UENF 1931 for a longer time period. For this second experiment, 30 accessions of sweet potato and two temperatures were used. Plant height, number... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.03.00-8 Ipomoea batatas; Minimal growth; Germplasm bank; Maintenance of diversity; Fitotecnia. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32700 |
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| PEZZOPANE, C. de G.; LIMA, A. G.; CRUZ, P. G. da; BELONI, T.; FAVERO, A. P.; SANTOS, P. M.. |
| The evaluation of genetic resources in germplasm banks of Paspalum can contribute to their use in breeding programs and for advanced research in biotechnology. This study evaluated the tolerance of 11 Paspalum accessions to abiotic stress caused by soil water deficit in a greenhouse experiment at Embrapa Pecuária Sudeste, São Carlos, state of São Paulo, Brazil. The variables analyzed were: dry biomass of green matter, dead matter and roots; leaf area; leaf water potential; number of days to lose leaf turgor (wilting); soil moisture at wilting; and number of tillers per pot. The results showed high genetic variability for all traits, not only among species but also within species, and also reflected the existence of different strategies of response and... |
| Tipo: Artigo de periódico |
Palavras-chave: Genotypes; Germplasm bank; Abiotic stress. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080224 |
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| Gill-Langarica,Homar R.; Muruaga-Martínez,José S.; Vargas-Vázquez,M.L. Patricia; Rosales-Serna,Rigoberto; Mayek-Pérez,Netzahualcoyotl. |
| A core collection of the common bean (Phaseolus vulgaris L.), representing genetic diversity in the entire Mexican holding, is kept at the INIFAP (Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias, Mexico) Germplasm Bank. After evaluation, the genetic structure of this collection (200 accessions) was compared with that of landraces from the states of Oaxaca, Chiapas and Veracruz (10 genotypes from each), as well as a further 10 cultivars, by means of four amplified fragment length polymorphisms (AFLP) +3/+3 primer combinations and seven simple sequence repeats (SSR) loci, in order to define genetic diversity, variability and mutual relationships. Data underwent cluster (UPGMA) and molecular variance (AMOVA) analyses. AFLP analysis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L.; Amplified fragment length polymorphisms (AFLP); Germplasm bank; Genetic relationships; Simple sequence repeats (SSR). |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400012 |
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| Chiorato,Alisson Fernando; Carbonell,Sérgio Augusto Morais; Benchimol,Luciana Lasry; Chiavegato,Marilia Barbosa; Dias,Luiz Antonio dos Santos; Colombo,Carlos Augusto. |
| Germplasm banks store genotype samples, improved varieties, landraces and wild species, all generically denominated accessions. The importance of characterizing germplasm banks is based on the identification and knowledge of relevant traits for genetic improvement and ex situ germplasm conservation. Thus, the present study had as aim the evaluation of the genetic diversity among 220 accessions of a Brazilian common bean germplasm bank of the "Instituto Agronômico de Campinas" (IAC) by means of 23 morpho-agronomical descriptors and 19 RAPD loci. These accessions correspond to genotypes from the Andean and Middle American gene pool as well as from cultivars derived from common bean improvement programs. The Middle American accessions and the improved... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Germplasm bank; Botanical descriptors; Multivariate analyses. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000300007 |
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| Bertoni,Bianca W.; Telles,Mariana P. de C.; Malosso,Milena G.; Torres,Simone C.Z.; Pereira,José O.; Lourenço,Mirian V.; França,Suzelei de C.; Pereira,Ana M.S.. |
| Jacaranda decurrens (Bignoniaceae) is an endemic species of the Cerrado with validated antitumoral activity. The genetic diversity of six populations of J. decurrens located in the State of São Paulo was determined in this study by using molecular markers for randomly amplified polymorphic DNA (RAPD) and amplified fragment length polymorphism (AFLP). Following optimization of the amplification reaction, 10 selected primers generated 78 reproducible RAPD fragments that were mostly (69.2%) polymorphic. Two hundred and five reproducible AFLP fragments were generated by using four selected primer combinations; 46.3% of these fragments were polymorphic, indicating a considerable level of genetic diversity. Analysis of molecular variance (AMOVA) using these two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bignoniaceae; Carobinha; Cerrado; Germplasm bank; Preservation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300025 |
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| Laviola,Bruno Galvêas; Rosado,Tatiana Barbosa; Bhering,Leonardo Lopes; Kobayashi,Adilson Kenji; Resende,Marcos Deon Vilela de. |
| The objective of this work was to estimate the genetic parameters and variability among accessions (half-sib families) of physic nut (Jatropha curcas) during the early stages of development. For this study, 110 accessions in the first year of development of the physic nut germplasm bank, maintained at Embrapa Cerrados, DF, Brazil, were evaluated in situ. The experiment was established in a randomized complete block design, with two replicates and five plants per plot arranged in rows at 4x2 m spacing. Grain yield, total number of branches per plant, plant height, stem diameter, canopy projection on the row, canopy projection between rows, canopy volume, number of days until first flowering and height of the first inflorescence were evaluated. Estimates of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas; Germplasm bank; Plant breeding. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001000010 |
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| Bertoni,Bianca Waléria; Astolfi Filho,Spartaco; Martins,Ernani Ronie; Damião Filho,Carlos Ferreira; França,Suzelei de Castro; Pereira,Ana Maria Soares; Telles,Mariana Pires de Campos; Diniz Filho,José Alexandre F.. |
| Zeyheria montana, an endemic species of the Bignoniaceae family from the Brazilian Cerrado's known for its anti-cancer properties, is widely used as imuno stimulant in the popular medicine and its therapeutic activity must be validated by scientific data. The objective of this work was to evaluate the genetic variability of eight plant populations collected within the state of São Paulo, Brazil, via Random Amplification of Polymorphic DNA (RAPD) used as molecular markers. After an optimized protocol for the amplification reaction, nine selected primers generated 105 reproducible bands, indicating up to 60% polymorphism. Analysis of molecular variance (AMOVA) revealed higher genetic variation within populations (84.03%) than among populations (15.97%). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bignoniaceae; Germplasm bank; Bolsa-de-pastor; Conservation. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400012 |
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| SOUZA, R. de L.; DIAS, L. A. dos S.; CORRÊA, T. R.; CAIXETA, E. T.; FERNANDES, E. da C.; MUNIZ, D. R.; ROSMANINHO, L. B. de C.; CARDOSO, P. M. R.. |
| We evaluated the genetic variability of a collection of Jatropha curcas germplasm, represented by 93 accessions, using microsatellite markers. Among the 60 markers tested, five of them detected polymorphisms, with a total of 11 alleles and mean of 2.2 alleles per loci. These five markers enabled the quan-tification of genetic variability through estimates of expected (He=0.42) and observed (Ho=0.64) heterozygosity, Shannon-Weaver index (H?=0.62), coefficient of inbreeding (?=-0.44) and the formation of 11 clusters. Simultaneously, 14 accessions randomly sampled among the 93 and represented by seven plants each, were analyzed with these same five markers to quantify the within and between variability. Most of the genetic variation (92.58%) was contained... |
| Tipo: Artigo de periódico |
Palavras-chave: Molecular marker; Germplasm bank; Biofuel; Jatropha Curcas; Variability; Breeding. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125515 |
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| Danner,Moeses Andrigo; Citadin,Idemir; Sasso,Simone Aparecida Zolet; Sachet,Marcos Robson; Mazaro,Sérgio Miguel. |
| The purpose of this study was to characterize cultivated genotypes of three jabuticaba species (Plinia cauliflora, P. trunciflora, and P. jaboticaba). Phenology and fruit growth, as well as leaf, flower and fruit traits were evaluated. Variability in all traits was observed among genotypes of the three jabuticaba species. The trait peduncle size is indicated for differentiation of the three species under study. The leaf and fruit sizes of the genotypes P. trunciflora 3, P. trunciflora 4, P. trunciflora 5 and P. jaboticaba 1 differ from those described in the literature for these species, indicating the formation of ecotypes. Jabuticaba fruit skin contains high anthocyanin and flavonoid concentrations, with potential use in food and pharmaceutical industries. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plinia sp; Germplasm bank; Genetic variability; Fruit quality. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300019 |
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| Registros recuperados: 43 | |
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