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| Registros recuperados: 125 | |
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| HOFFMANN,Lúcia Vieira; CARDOSO,Kálita Cristina Moreira; ROCHA,Antônio Sabino Neto da Costa; OLIVEIRA,Aryanny Irene Domingues de; ABREU,Aluana Gonçalves; PEREIRA,Caio César de Oliveira; MALAFAIA,Guilherme; MENEZES,Ivandilson Pessoa Pinto de. |
| ABSTRACT The Amazon Basin is a center of diversity of Gossypium barbadense and the strategy for conservation of this genetic resource depends on the knowledge of the diversity maintained in Amazonas State. During two expeditions, in 2012 and 2014, plants were collected in ten municipalities in the state of Amazonas, in the central Brazilian Amazon region. The molecular diversity was estimated by SSR markers for 50 samples collected in 2012. The morphological diversity of 24 plants collected in 2014 was assessed ex situ and compared to that of 50 plants of the same and other cotton varieties from other Brazilian states. Most of plants evaluated in situ in Amazonas had purple petioles and veins (82%), associated to medicinal use, and kidney seeds (78%). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Genetic resources; Cotton tree; Phenotypic characterization. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100001 |
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| RODRIGUES,Haroldo Silva; BORÉM,Aluízio; VALENTE,Mágno Sávio Ferreira; LOPES,Maria Teresa Gomes; CRUZ,Cosme Damião; CHAVES,Francisco Célio Maia; BEZERRA,Caroline de Souza. |
| ABSTRACT Sacha inchi (Plukenetia volubilis) is native to the Amazon region and has a high seed content of mono and polyunsaturated fatty acids, making it interesting for the pharmaceutical and cosmetic industry. The purpose of this study was to analyze sacha inchi genetic diversity and describe accessions based on phenotypic characteristics. Fruits and seeds of 25 accessions from the sacha inchi genebank of Embrapa Amazônia Ocidental in Manaus, Amazonas state, were sampled and biometrically measured. The data were subjected to analysis of variance, Mahalanobis distance, canonical correlation, and genetic diversity among and within accessions by analysis of molecular variance (AMOVA). There were significant differences among the means of the analyzed... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Euphorbiaceae; Biometrics; Amazon region; Genetic resources. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000200093 |
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| Machado, Caroline De Araújo; Universidade Federal de Sergipe; Moura, Catrine Regina Feitosa; Universidade federal de Sergipe; Lemos, Eurico Eduardo Pinto de; Universidade Federal de Alagoas; Ramos, Semíramis Rabelo Ramalho; Embrapa Tabuleiros Costeiros; Ribeiro, Francisco Elias; Universidade Federal de Sergipe; Lédo, Ana Da Silva; Embrapa Tabuleiros Costeiros. |
| The aim of this study was to evaluate the storage potential of the pollen grains of Brazil Green Dwarf (BGD), Brazilian Tall (BRA) and Cameroon Red Dwarf (CRD) coconut accessions under different storage conditions. Representative plants of BGD, BRA and CRD accessions were selected from the Coconut Active Germplasm Bank of Embrapa Coastal Tablelands. The pollen grains were collected, placed in cryotubes and maintained under the following storage conditions: T1, refrigerator (-4°C); T2, freezer (-20°C); T3, ultra-freezer (- 80°C) and T4, liquid nitrogen (-196°C). The pollen grain viability was determined by staining with 1% acetic carmine and in vitro germination in a Lora culture medium at 30 and 60 days after the storage. Storage under refrigerator (-4°C),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.00.00.00-4 Cocos nucifera L.; Genetic resources; Conservation; Meio de cultura; Germinação in vitro Fitotecnia- Cultura de Tecidos. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17346 |
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| Ferreira,J.B.; Guilhermino,M.M.; Leite,J.H.G.M.; Sousa,J.E.R.; Araújo,B.V.S.; Vasconcelos,A.M.; Lara,M.A.C.; Façanha,D.A.E.. |
| RESUMO O objetivo deste trabalho foi identificar polimorfismos genéticos de leptina, β-lactoglobulina e fator de transcrição pituitária (PIT1) e avaliar seus efeitos na composição química e na contagem de células somáticas de leite de vacas leiteiras mestiças que vivem em um clima quente. Um total de 291 vacas leiteiras mestiças foram investigadas. Foram coletadas amostras de sangue para extração de DNA e amostras de leite. As amostras foram classificadas em três grupos genéticos: 1 2(42), 3 4(83) e 7 8(166) Holandês x Guzerá. As frequências de alelos e genótipos foram determinadas e o equilíbrio Hardy-Weinberg foi avaliado. Foram realizadas análises da composição do leite (gordura, proteína, lactose e extracto seco desengordurado), contagem de... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Dairy cows; Animal production; Genetic resources; Guzerá; Holsten. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200715 |
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| Mratinić,Evica; Akšić,Milica Fotirić. |
| To determine the overall degree of polymorphism, detect similarities among the accessions and collect highly valued genotypes of native apples, 21 characters of 18 autochthonous apple cultivars were studied for three years. Particular individual accessions were selected from the south region of Serbia according to economically valuable characters and tested in situ. Agronomic evaluation of germplasm accessions revealed considerable diversity among different accessions for all the characters studied. The analysis of variance revealed significant differences among the accessions and among years for some characters as well. Cluster analysis distinguished Malus sp. accessions into three distinct groups. Despite of the significant differences among the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apple; Cluster analysis; Diversity; Genetic resources. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300004 |
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| Amabile,Renato Fernando; Faleiro,Fábio Gelape; Capettini,Flávio; Peixoto,José Ricardo; Sayd,Ricardo Meneses. |
| ABSTRACT Recently, researches have shown that the Brazilian savannah has a great potential to supply the demand for barley grains. The purpose of this study was to assess the genetic variability in 39 elite barley (Hordeum vulgare L.) genotypes based on the agro-morphological traits of a crop irrigated in the savannah system. An irrigation experiment in the design of complete randomized block with four replicates was conducted at Federal District - Brazil. The evaluated traits were: distance from the last knot to the rachis, distance from the flag leaf to rachis, spike length, number of grains by ear, flag leaf area, plant height, silking, lodging, grain yield, thousand-seed weight, protein content and grain commercial classification. After using analysis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic diversity; Hordeum vulgare L.; Genetic resources; Savannah. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000200147 |
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| PADILHA,Henrique Kuhn Massot; PEREIRA,Elisa dos Santos; MUNHOZ,Priscila Cardoso; VIZZOTTO,Márcia; VALGAS,Ricardo Alexandre; BARBIERI,Rosa Lía. |
| AbstractThe objective of this study was to evaluate the genetic variability for synthesis of bioactive compounds in pepper (Capsicum annuum, Solanaceae). Total phenolics, anthocyanins, carotenoids and antioxidant activity were evaluated in 14 accessions of Capsicum annuum from the Capsicum Genebank of Embrapa Temperate Agriculture (Pelotas – RS, Brazil). Thirty plants of each accession were cultivated in the field during spring and summer. The experimental design was a complete randomized block with 14 treatments (accessions) and three replications. The laboratory evaluations followed the same experimental design to field, but with two repetitions more. Seeds were discarded and opposite longitudinal portions of fruits were manually prepared for chemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanaceae; Genetic resources; Ex situ conservation; Characterization. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000300516 |
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| PRIORI,Daniela; VALDUGA,Eduardo; VILLELA,Juliana Castelo Branco; MISTURA,Claudete Clarice; VIZZOTTO,Márcia; VALGAS,Ricardo Alexandre; BARBIERI,Rosa Lía. |
| Abstract The objective of this work was to evaluate the genetic variability for the synthesis of bioactive compounds and minerals in pumpkin (Cucurbita moschata) landraces. Total phenolic compounds, carotenoids, antioxidant activity and minerals were evaluated in 10 accessions of Cucurbita moschata landraces from the Genebank of Embrapa Temperate Agriculture (Pelotas - RS, Brazil). Twenty plants of each accession were cultivated in the field during the spring/summer of 2013/2014. After harvesting of mature fruits, the seeds were discarded and opposite longitudinal portions of the pulp were manually prepared for analysis of the bioactive compounds. For the determination of minerals, pumpkin samples were frozen in plastic bags, and after freeze-dried and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pumpkin; Cucurbitaceae; Ex situ conservation; Genetic resources; Characterization. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000100033 |
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| Agostini-Costa,Tânia da Silveira; Teodoro,Ana Flávia Pádua; Alves,Rosa de Belem das Neves; Braga,Leandro Ribeiro; Ribeiro,Ieler Ferreira; Silva,Joseane Padilha; Quintana,Luciane Gomes; Burle,Marília Lobo. |
| The objective of this study was to characterize for the first time polyphenols and DPPH (2-diphenyl-1-picryhydrazyl radical) antioxidant activity in commonly cultivated accessions of Phaseolus lunatus from an ex situ germplasm collection maintained by Embrapa, in Brazil. Furthermore, the study aimed to detect changes in total polyphenols, total flavonoids and condensed tannin for the same accessions after regeneration in a greenhouse. The results showed the diversity of the lima bean collection for phenolic compounds, which were strongly correlated with antioxidant activity. Lima beans accessions with the highest polyphenols and antioxidant activity were those with colored seeds. Conservation through cold storage of P. lunatus seeds in a cold chamber in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus lunatus; Genetic resources; Germplasm collection; Leguminosae; Polyphenols. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200335 |
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| Pozzobon,Marisa Toniolo; Machado,Ana Caroline de Carvalho; Vaio,Magdalena; Valls,José Francisco Montenegro; Peñaloza,Andréa del Pilar de Souza; Santos,Sileuza dos; Côrtes,Ana Luiza; Rua,Gabriel Hugo. |
| Chromosome numbers were counted in 126 new accessions of 50 Paspalum species from Brazil, Argentina, Paraguay and Bolivia. The chromosome numbers 2n=12, 20, 24, 30, 40, 50, 60, 80 were confirmed. Chromosome numbers for P. arenarium (2n=20), P. barretoi (2n=20), P. aff. ceresia (2n=40), P. corcovadense (2n=20), P. crispulum (2n=20), P. flaccidum (2n=40), P. nummularium (2n=20), P. scalare (2n=20), P. vescum (2n=20) and P. rectum (2n=20) and a diploid cytotype of P. malacophyllum are reported for the first time. The predominance of tetraploid accessions (43.6%) was confirmed, but an unusually high number of diploid species (44%) and accessions (35.7%) was found. These results open new perspectives for breeding programs, phylogenetic studies, and for research... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromosome; Diploid; Polyploid; Ploidy level; Hybrid; Genetic resources. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000500014 |
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| Fuhrmann,Elisiane; Vieira,Eduardo Alano; Fialho,Josefino de Freitas; Faleiro,Fábio Gelape; Malaquias,Juaci Vitoria; Carvalho,Luiz Joaquim Castelo Branco. |
| ABSTRACT: Sweet cassava breeding programs are focused on the development of bio fortified cultivars that combine significant amounts of carotenoids in their reserve roots with desirable agronomic. The objective of this research was to evaluate agronomic and biochemical traits in sweet cassava clones with roots that have pink pulp. The nine genotypes were evaluated in two seasons in a randomized block design with three replications. Among the evaluated clones, the following stood out: i) for the height of the first branch (390/08, 345/08 and the control IAC 576-70); ii) for plant height (390/08, 345/08 e 378/08); iii) for shoot weight without original steam cutting (390/08, 406/08, 378/08 e 341/08); iv) for the percentage of starch in roots (378/08,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Breeding; Genetic resources; Lycopene.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100201 |
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| Lira,Ellen Grippi; Amabile,Renato Fernando; Fagioli,Marcelo; Montalvão,Ana Paula Leite. |
| ABSTRACT: Sunflower (Helianthus annuus L.) is an annual crop that stands out for its production of high quality oil and for an efficient selection, being necessary to estimate the components of genetic and phenotypic variance. This study aimed to estimate genetic parameters, phenotypic, genotypic and environmental correlations and genetic variability on sunflower in the Brazilian Savannah, evaluating the characters grain yield (YIELD), days to start flowering (DFL) based on flowering date in R5, chapter length (CL), weight of a thousand achenes (WTA), plant height (H) and oil content (OilC) of 16 sunflower genotypes. The experiment was conducted at Embrapa Cerrados, Planaltina, DF, situated at 15º 35’ 30”S latitude, 47º 42’ 30”W longitude and 1.007m above... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic diversity; Genetic resources; Genotypic correlations; Helianthus annuus L. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800402 |
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| Registros recuperados: 125 | |
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