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| Registros recuperados: 282 | |
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| GUIZADO,Stalin Juan Vasquez; NADEEM,Muhammad Azhar; ALI,Fawad; BARUT,Muzaffer; HABYARIMANA,Ephrem; GÓMEZ,Tedi Pacheco; SANTILLAN,Jhon Antoni Vargas; CANALES,Esperanza Torres; GÓMEZ,Juan Carlos Castro; CHUNG,Gyuhwa; BALOCH,Faheem Shehzad. |
| ABSTRACT Rosewood, Aniba rosaeodora is an endangered species in Amazon forests and its natural stands have been heavily depleted due to over-exploitation for the cosmetic industry. This study aimed to investigate the genetic diversity and population structure of 90 rosewood accessions from eight localities in the Peruvian Amazon through 11 Inter Simple Sequence Repeats (ISSR) primers. The ISSR primers produced a sum of 378 bands, of which 375 (99.2%) were polymorphic, with an average polymorphism information content (PIC) value of 0.774. The mean effective number of alleles (Ne), Shannon informative index (I), gene diversity (He) and total gene diversity (Ht) were 1.485, 0.294, 0.453 and 0.252, respectively. Analysis of molecular variance (AMOVA) showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aniba rosaeodora; Endangered species; Gene flow; Germplasm; Molecular characterization. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300204 |
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| Silva,Carlos Rogério Sousa; Venturieri,Giorgini Augusto; Figueira,Antonio. |
| There are two major in vivo collections of species of the genus Theobroma L. in Belém and Marituba, state of Pará, Brazil, and in both there are natural species, as well as natural and artificial interspecific hybrids. In order to organize a database of Brazilian Theobroma species, a description of the existing collections and detailed information about the interspecific hybrids, including an artificial key for their identification, are presented in this article. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Interspecific hybrids; Theobroma; Germplasm; Herrania. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000200012 |
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| Costa, Angélica Reolon da; Universidade de Passo Fundo; Grando, Magali Ferrari; Universidade de Passo Fundo.; Scheffer-Basso, Simone Meredith; Universidade de Passo Fundo; Cravero, Vanina Pamela; Universidade Nacional de Rosário. |
| A morphophysiological characterization of 19 accessions within an artichoke germplasm collection was conducted with the aim of determining genetic variability and to select materials suitable for in natura consumption to be used in genetic breeding. The collection was composed of commercial accessions, materials collected in South Brazil, and of foreign origin. Twenty quantitative, five multicategorical and two binary traits were evaluated. Quantitative data were submitted to a multivariate analysis. Genetic variability was observed for almost all characteristics. The traits with the greatest relative contribution to genetic divergence, which accounted for 79.54% of the variability, were as follows: the thickness and diameter bottom, bottom fresh mass/head... |
| Tipo: Pesquisa Empírica de Campo |
Palavras-chave: 5.01.00.00-9 Agronomia; 5.01.03.05-9 Melhoramento Vegetal Cynara cardunculus var. scolymus (L.) Fiori; Genetic variability; Germplasm; Multivariate analysis Melhoramento Vegetal. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14551 |
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| Pereira, Tamara; CAV-UDESC; Coelho, Cileide Maria Medeiros; CAV-UDESC; Santos, Julio Cesar Pires dos; CAV-UDESC; Bogo, Amauri; CAV-UDESC; Miquelluti, David Jose; CAV-UDESC. |
| O feijão representa importante fonte de nutrientes, e pode ter seus teores aumentados com o uso de genótipos que apresentem naturalmente elevados teores destes nutrientes, como ocorre nos genótipos crioulos. O objetivo deste trabalho foi caracterizar 34 genótipos crioulos do Banco Ativo de germoplasma de Feijão do CAV-UDESC quanto ao teor de nutrientes (cálcio, magnésio, zinco, ferro, fósforo, potássio, proteína total e solúvel) e antinutriente (fitato) nos grãos, durante os anos de cultivo de 2005/2006 e 2006/2007. O teor de nutrientes nos grãos de feijão foi influenciado tanto pelo genótipo, quanto pelas condições climáticas, com respostas diferentes em cada ano de cultivo, e entre os dois anos de cultivo. Os genótipos crioulos BAF 60, 69 e 108... |
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Palavras-chave: 5.00.00.00-4 variabilidade genética; Qualidade nutricional; Germoplasma; Análise multivariada 5.01.03.00-8 genetic variability; Nutrition quality; Germplasm; Multivariate analysis. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6328 |
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| Techio, Vânia Helena; UNC; Cagliari, Alexandro; Universidade do Contestado; Floss, Paulo Alfonso; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina; Croce, Dorli Mário da; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina. |
| O presente trabalho objetivou analisar a morfologia foliar (morfometria e nervação foliar) de procedências de erva-mate coletadas no Sul do Brasil e Argentina. Analisaram-se 30 folhas de cada procedência, obtendo-se cinco medidas (comprimento total da folha, largura máxima, comprimento desde a base até a largura máxima, comprimento do pecíolo e área) e calculando-se dois índices (comprimento total sobre a largura máxima e comprimento desde a base até a largura máxima sobre o comprimento total da folha). Para a nervação foliar, as folhas foram clarificadas por meio da técnica de diafanização. Os maiores e menores valores morfométricos foram, respectivamente, 118 e 67 mm para comprimento da folha, 51 e 34 mm para largura máxima, 78 e 42 mm para comprimento... |
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Palavras-chave: 2.02.00.00-5 erva-mate; Morfometria e nervação foliar; Germoplasma Genética mate; Morphometry and leaf venation; Germplasm. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3448 |
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| Techio, Vânia Helena; UNC; Davide, Lisete Chamma; UFLA; Souza, Tatiana Matioli; 3Bios Consultoria e Serviços Ambientais Ltda; Pereira, Antônio Vander; EMBRAPA-MG. |
| Avaliou-se o complemento cromossômico de 16 acessos de Pennisetum disponíveis na Coleção de Germoplasma da Embrapa Gado de Leite – Juiz de Fora, Estado de Minas Gerais. Para a avaliação citogenética, utilizou-se a técnica de esmagamento e coloração com Feulgen. Para quatro acessos foram obtidas metáfases com 2n = 28 cromossomos, confirmando sua classificação como P. purpureum. A origem híbrida P. purpureum x P. glaucum foi constatada em oito acessos, os quais apresentaram 2n = 21. Em um acesso identificado como híbrido entre P. purpureum x P. glaucum, foram observadas metáfases com 2n = 54, permitindo inferir que não se trata de um híbrido interespecífico triplóide. Para outros três acessos avaliados, também foram observadas células com 2n = 54, embora... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas Pennisetum; Citogenética; Germoplasma; Híbridos interespecíficos. Pennisetum; Cytogenetics; Germplasm; Interspecific hybrids. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5016 |
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| Occhiuto,P.N; Peralta,I.E; Asprelli,P.D; Galmarini,C.R. |
| Paprika production is concentrated in Northwestern Argentina, where around 1500 ha are annually grown. Farmers mainly from Andean valleys, maintain their local landraces or “criollas” under different environmental conditions, using their farming traditions and selection criteria. These traditional varieties represent valuable genetic resources for conservation and selection of agronomical and quality traits. Between 2005 and 2007 eight collecting trips were made to Northwestern Argentina in order to recover local germplasm. As a result, five hundred new vegetable seed samples have been incorporated into the Germplasm Bank. Among these accessions 32 belong to Capsicum, the majority for paprika production, that were evaluated in field... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; C. baccatum; Germplasm; Characterization; Pungency; Pre-breeding. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2014000200002 |
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| Fernandes,Maria Elisa S.; Fernandes,Flávio L.; Silva,Derly J.H.; Picanço,Marcelo C.; Jhamc,Gulab N.; Carneiro,Pedro C.; Queiroz,Renan B.. |
| The objective of this work was to study the density of trichomes and hydrocarbons associated with the resistance by antixenosis of 42 subsamples of tomato plants from the Horticultural Germplasm Bank of the Universidade Federal de Viçosa (HGB-UFV) to Liriomyza trifolii. These subsamples were studied in addition to 'Santa Clara' cultivar, which was used as a standard of susceptibility to leafminers. The evaluated characteristics were the number of mined leaflets per plant, mines per plant, trichome density and chemical compounds in the leaves. Differences were detected among the subsamples in the variables studied. We identified 20 peaks in the chromatograms of leaf hexane extract the subsamples tested. The subsamples HGBs - 216, 813, 985, 987, 991, 992,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Liriomyza trifolii; Solanum lycopersicum; Germplasm; Pest resistance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100021 |
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| OLIVEIRA,FREDERICO I.C. DE; FIEGE,LEONARDO B.C.; CELIN,ELAINE F.; INNECCO,RENATO; NUNES,GLAUBER H.S.; ARAGÃO,FERNANDO A.S. DE. |
| ABSTRACT Melon is one of the most important vegetable crops in the world. With short cycle in a system of phased planting, phytosanitary control is compromised, and a great volume of agricultural chemicals is used to control vegetable leafminer. Genetic control is an ideal alternative to avoid the damage caused by this insect. Thus, the aim of this study was to evaluate Cucumis accessions in regard to resistance to leafminer and correlate the variables analyzed. Fifty-four accessions and four commercial hybrids of melon were tested. The study was divided into two experiments: with and with no choice. The following characteristics were evaluated: with choice, in field - subjective score based on the infestation and the number of mines per leaf; and with no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Germplasm; Liriomyza sativae; Lab system. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301155 |
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| Siqueira,Marcos Vinicius Bohrer Monteiro; Borges,Aline; Valle,Teresa Losada; Veasey,Elizabeth Ann. |
| This study was carried out in order to assess the genetic diversity of 20 cassava (Manihot esculenta Crantz) genotypes with high phenotypic performance using microsatellite markers. Two groups were considered for this study: eleven varieties for industrial uses and nine for household consumption. By using nine microsatellite primers, high polymorphism was identified in all the loci analyzed, with values reaching 100%. On average, 3.4 alleles per locus were found, with 0.371 the value estimated for the observed heterozygosity and 0.555 for gene diversity for the entire set of varieties. The genetic variability found in both varieties, cultivated on a large-scale in the South Center region of Brazil, is wide enough to allow the choice of divergent parental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Genetic diversity; Germplasm; Microsatellites. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400003 |
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| Okatan,Volkan; Çolak,Ayşen Melda; Güçlü,Sultan Filiz; Korkmaz,Nazan; Sękara,Agnieszka. |
| ABSTRACT Rosehip, Rosa canina L. fruit, is valued for its flavor, taste, color and aroma, in accordance with its recognition as one of richest sources of pro-health compounds. Screening, preservation and propagation of the most valuable local populations of rosehip are performed for food, pharmacological, and cosmetic applications. Eleven native R. canina genotypes from the Interior Aegean region, Turkey, were collected and analyzed regarding organic acids, phenolic compounds, sugars, and DPPH scavenging activity within this study. Regarding biochemical profile of fruits, protocatechuic acid and quercitrin were the most dominant compounds among 12 identified phenolics. The dominant organic acids were malic and citric and fructose and glucose were the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rosa canina L.; Germplasm; Phytonutrients; Biodiversity preservation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300397 |
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| Cardona,Christian Camilo Castañeda; Coronado,Yacenia Morillo; Conronado,Ana Cruz Morillo; Ochoa,Iván. |
| ABSTRACT The oil palm (Elaeis guineensis Jacq) plays an important role in the economy of some tropical countries; Colombia ranks first for production in Latin America and fifth in the world. The aim of this research was to characterize the genetic variability of 51 oil palm genotypes from the Congo with seven randomly amplified microsatellite markers RAM. As a result, 241 alleles were generated andthe number of polymorphic loci ranged from 46 to 14 for the ACA and CGA primers, respectively. High genetic diversity was found, with a total heterozygosity of 0.64, along with a high percentage of polymorphic loci, 89%. The coefficient of genetic differentiation (Fst) was 0.15, indicating that there was moderate genetic differentiation. The genetic diversity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Genetic markers; Germplasm; Genetic structure. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000400546 |
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| Singh,Atul; Singh,Pratap; Tiwari,A K; Sharma,B L. |
| ABSTRACT Red rot, caused by Colletotrichum falcatum Went is the most important disease of sugarcane in India inflicting substantial loss to both cane industry and cane growers. To keep in view the importance of red rot disease of sugarcane, 117 accession of sugarcane germplasm including different Saccharum species and Indian and foreign commercial hybrids were tested against red rot with Cf 07, Cf 08 & Cf 09 (national pathotypes) by plug method of inoculation. Out of 117, 6 were found resistant and 12 were moderately resistant against red rot and rest were moderately susceptible/susceptible/highly susceptible. Theses resistance and moderately resistant accession can be further utilize to produce resistance varieties against the most devastating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; Germplasm; Resistance; Red rot; Plug method. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100203 |
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| Eira,Mirian T. S.; Silva,E. A. Amaral da; De Castro,Renato D.; Dussert,Stéphane; Walters,Christina; Bewley,J. Derek; Hilhorst,Henk W. M.. |
| Considerable advances in our understanding of coffee seed physiology have been made in recent years. However, despite intense research efforts, there are many aspects that remain unclear. This paper gives an overview of the current understanding of the more important features concerning coffee seed physiology, and provides information on recent findings on seed development, germination, storage and longevity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Coffee; Germination; Germplasm; Longevity; Seed development; Storage. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100011 |
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| Registros recuperados: 282 | |
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