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| Registros recuperados: 238 | |
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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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| 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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| 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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| 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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| 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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| 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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| Paredes C,Mario; Becerra V,Viviana; González A,María I. |
| Garlic (Allium sativum L.) is a species of vegetative propagation, showing high morphological diversity. Besides, its clones have specific adaptations to different agroclimatic regions. The objective of this study was to determine the genetic diversity of 65 garlic clones collected in Chile and introduced from different countries, by using RAPD (Random Amplified Polymorphic DNA). Fourty random primers of 10 mers generated a total of 398 bands with an 87% of polymorphism. Each primer amplified between two and 20 bands. The size of the fragments obtained fluctuated between 3200 and 369 bp. The results showed that the clones analyzed had a genetic similarity rate of 94%. In addition, 70% of them were clustered in one major group. However, in spite of that... |
| Tipo: Journal article |
Palavras-chave: Germplasm; Genetic diversity; RAPD diversity. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100001 |
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| Fernandes,Murilo de Oliveira; Bianchi,Paola Alvares; Silva,Lígia Renata Almeida da; Vianna,Larissa Souza; Santos,Eileen Azevedo; Moulin,Monique Moreira. |
| ABSTRACT: The collection and characterization of tomato germplasm are of relevant importance for agriculture. This study aimed to collect and characterize, by way of morphological description and statistical tools for the composition of groups, tomato accesses from the Southern and Serrana regions of the State of Espírito Santo, as well as to establish the tomato germplasm bank of the Ifes - Campus de Alegre. Thirty-seven accessions were collected from different commercial locations of Espírito Santo. The experiment was conducted in the Ifes Campus de Alegre in the Agroecology sector. For the morpho-agronomic characterization, sixteen essential descriptors were used, nine quantitative and seven qualitative. In the color of the ripe fruit, there was the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Germplasm; Genetic diversity; Qualitative and quantitative characters. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100400 |
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| Registros recuperados: 238 | |
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