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Registros recuperados: 33
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A cultura do milho na Amazônia. Infoteca-e
PEREIRA, O. G..
bitstream/item/69744/1/IPEAN-Fitotecnia1.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Cultivo; Melhoramento genetico; Brasil; Maize; Cultivation; Genetic breeding; Cultural practices; Yield; Harvest.; Colheita; Milho; Pesquisa; Polinização; Pratica Cultural; Produtividade.; Plantio; Amazonia; Pollination; Planting; Research..
Ano: 1971 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376203
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Apport d'un programme de génétique à une filière de production aquacole : l'exemple de l'ostréiculture ArchiMer
Lapegue, Sylvie; Bedier, Edouard; Goyard, Emmanuel; Degremont, Lionel; Baud, Jean-pierre; Gerard, Andre; Goulletquer, Philippe; Boudry, Pierre.
Two oyster species are currently present along the French coasts : the indigenous European flat oyster (Ostrea edulis), and the Pacific cupped oyster (Crassostrea gigas), that has been introduced from Japan since the beginning of the 70ies. The flat oyster successively suffered from two protozoan diseases during the 60ies and its production decreased from 20 000 tons/year by that time to 1 500 tons/year nowadays. Consequently, the oyster production is principally (99%) based upon the Pacific oyster species with approximately 150 000 tons/year among which 90% are grown from the natural spat. However, the hatchery production of this species is developing and was estimated to 400 to 800 millions spat in 2002. Moreover, strengthened relationships between...
Tipo: Text Palavras-chave: Growth; Selection; Genetic breeding; Genetic; Ostrea edulis; Crassostrea gigas; Oysters; Croissance; Sélection; Amélioration génétique; Génétique; Ostrea edulis; Crassostrea gigas; Huîtres.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2003/acte-3491.pdf
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Aspectos básicos do cultivo do coqueiro (Cocos nucifera L.). Infoteca-e
ALVES, R. M.; MÜLLER, A. A..
bitstream/item/190948/1/Aspectos-basicos.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Cultivo; Melhoramento genético; Coconut; Cultivation; Production cost; Genetic breeding; Harvest; Coco; Cocos Nucifera; Colheita; Custo de Produção.
Ano: 1995 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374719
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BRS F63 (Camila): A fresh market potato cultivar, with high yield potential and resistance to virus Y Horticultura Brasileira
Pereira,Arione S; Silva,Giovani O; Bertoncini,Odone; Castro,Caroline M; Bortoletto,Antonio C; Hirano,Elcio; Azevedo,Fernanda Q; Lima,Mirtes F; Gomes,Cesar B; Dutra,Leonardo F; Suinaga,Fabio A; Carvalho,Agnaldo DF; Melo,Paulo E; Lopes,; Carlos A; Reisser Junior,Carlos; Pinheiro,Jadir B; Medeiros,Carlos AB; Krolow,Ana CR; Castro,Luis AS; Nazareno,Nilceu RX de.
ABSTRACT Camila potato, registered and protected as BRS F63, is a cultivar for the fresh market, with oval tubers of attractive appearance, having shallow eyes, yellow and smooth skin, and light yellow flesh. It presents medium specific gravity (dry matter), which allows greater culinary versatility than ‘Agata’. Cooked tubers have a firm texture and distinctive flavor, with potential for use even in gourmet kitchen, for preparing salads and other similar dishes. The vegetative growth cycle and dormancy are medium. It presents high productive potential, with high percentage of marketable tubers. It is moderately resistant to greening. Concerning physiological disorders in the tubers, ‘BRS F63’ (Camila) is similar to ‘Agata’ and ‘Asterix’ in crops of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum tuberosum; Genetic breeding; PVY; Variety.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100136
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BRS Tui: a new Biquinho-type pepper cultivar released by Embrapa Horticultura Brasileira
Ribeiro,Cláudia S da C; Carvalho,Sabrina Isabel C de; Heinrich,Ana Gláucia; Reifschneider,Francisco José B.
ABSTRACT The orange-fleshed Biquinho pepper type cultivar BRS Tui was developed by Embrapa Hortaliças to meet the demands of fresh fruit and processing agroindustry of preserves, jellies, flavored oils and vinegar markets. Its fruits are very aromatic, tasty, and crunchy. It is resistant to important diseases, and presents high yield, uniformity and fruit quality. Moreover, ‘BRS Tui’ fruits are sweet and serve consumers who do not consume hot peppers because of their pungency.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum chinense; Processing; Diseases resistance; Genetic breeding.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400526
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Características da produção leiteira em búfalos (Bubalus bubalis L.). Infoteca-e
MARQUES, J. R. F.; NASCIMENTO, C. N. B. do; CARVALHO, L. O. D. de M.; LOURENÇO JUNIOR, J. de B.; COSTA, N. A. da; BATISTA, H. A. M.; RIBEIRO, M. J. P. da S. de S.; BARBOSA, C.; RAMOS, A. de A.; PIMENTEL, E. S..
bitstream/item/41643/1/Boletim-Pesquisa-121-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Percentagem; Fonte de variação; Bubalino; Característica; Estatística descritiva; Melhoramento genético; Fat percentage; Genetic breeding; Management; Sources of variation; Buffalo; Characteristic.; Animal; Gordura; Leite; Lactação; Manejo.; Lactation; Milk; Statistics..
Ano: 1991 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383556
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Carbon isotope fractionation for cotton genotype selection PAB
Brito,Giovani Greigh de; Suassuna,Nelson Dias; Diola,Valdir; Sofiatti,Valdinei; Ducatti,Carlos; Silva,Evandro Tadeu da; Morello,Camilo de Lelis.
The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed-cotton yield in SHGO,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium; Carbon isotope discrimination; Genetic breeding; Phenotyping..
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000900673
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Chemical composition of five loquat cultivars planted in Brazil Ciênc. Tecnol. Aliment.
Hasegawa,Patrícia Nagai; Faria,Adelia Ferreira de; Mercadante,Adriana Zerlotti; Chagas,Edvan Alves; Pio,Rafael; Lajolo,Franco Maria; Cordenunsi,Beatriz Rosana; Purgatto,Eduardo.
Loquat is a fruit with high market value cultivated in Southeast Brazil. Despite of this, there are little details about its quality characteristics. Fruits from five loquat cultivars, developed using genetic breeding, were analyzed to assess their compositional traits. The cultivars Centenária, Mizuho, Mizumo, Néctar de Cristal and Mizauto were selected based on their high productivity and resistance to diseases. Soluble sugars, organic acids, and carotenoids were quantified using liquid chromatography. The cultivar (cv.) with the highest total sugar concentration was Mizumo and the lowest concentration was found in Centenária. The main sugar detected was sucrose, and the malic acid was the major organic acid. Ascorbic acid was detected in small amounts....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ripening; Eriobotrya japonica; Genetic breeding; Β-carotene.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000200040
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Collecting and evaluation of germplasm of spiked pepper from Brazilian Amazon Horticultura Brasileira
Gaia,José Maria D; Mota,Milton Guilherme da C; Conceição,Carmen Célia C da; Maia,José Guilherme S.
Spiked pepper (Piper aduncum L.) is an aromatic plant species with high essential oil production. It is a species that occurs abundantly in the Brazilian Amazon. Its essential oil has exploitable biological properties in the human health and agriculture. Aiming to study its germplasm toward future use in genetic breeding programs, collecting was carried out (inflorescences, cuttings, leaves and thin branches) in ten provenances from the Brazilian Amazon. Twelve morphoagronomic traits were determined to take the data: number of leaves by branch, length of leaf, width of the leaf, circumference of the older branch, height of the plant, number of orthotropic branches, number of plageotropic branches, length of the internodes, number of spikes per branches,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Piper aduncum L.; Genetic resources; Conservation of germplasm; Morphoagronomic traits; Genetic breeding.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000200004
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Divergência genética entre progênies de polinização aberta de Pinus caribaea var. hondurensis a partir de caracteres quantitativos PFB - Pesquisa Florestal Brasileira
Santos, Wanderley dos; Araújo, Elton Gean; Souza, Danilla Cristina Lemos; Silva, Janaína Rodrigues da; Recco, Camila Regina Silva Baleroni; Moraes, Mário Luiz Teixeira de; Aguiar, Ananda Virginia de.
Este trabalho foi realizado com o objetivo de estimar a divergência genética entre progênies de Pinus caribaea var. hondurensis, por meio de caracteres quantitativos. O experimento foi instalado em delineamento látice 10 x 10, triplo, com 100 tratamentos (96 progênies oriundas de polinização aberta de um pomar clonal da espécie e quatro testemunhas). Foram avaliados os caracteres: diâmetro a 1,30 m do solo, altura total de planta, volume cilíndrico, produção de resina total e resina por área de painel. Utilizou-se a distância generalizada de Mahalanobis (D2) e o método de otimização de Tocher. A maior distância genética observada entre as progênies foi de 100% (D2 = 65,51) e a menor foi de 0,09% (D2 = 0,15). O caractere volume foi o que mais contribuiu...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic breeding; Generalized Mahalanobis distance; Tocher optimization Recursos Florestais; Engenharia Florestal; Botânica; Genética Vegetal; Melhoramento genético; Distância generalizada de Mahalanobis; Otimização de Tocher.
Ano: 2016 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/920
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Evaluation of maize top crosses under two nitrogen levels Ciência e Agrotecnologia
Guedes,Fernando Lisboa; Souza,João Cândido de; Costa,Emiliano Fernandes Nassau; Reis,Matheus Costa dos; Cardoso,Gustavo Andrade; Ematné,Hugo Junqueira.
Maize crops in Brazil have a wide diversity of management systems. There is a large contingent of family agriculture, which uses little or no agricultural inputs, compared to the rural enterprise which uses the most modern production systems. This difference in the management systems is particularly noticeable in relation to consumption of fertilizers, especially nitrogenous ones. Therefore it is necessary to obtain plants with efficient nitrogen (N) use that also respond to applied nitrogen. Thus, the aim of the study was to evaluate the performance of S0:1 progenies, in top crosses, under two nitrogen levels and select the best ones based on responsiveness and efficiency. Sixty seven S0:1 progenies from populations of single cross hybrids were crossed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic breeding; Zea mays; S0:1 progenies; Tester; Abiotic stress.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600011
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Evaluation of sunflower cultivars for central Brazil Scientia Agricola
Porto,Willyam Stern; Carvalho,Claudio Guilherme Portela de; Pinto,Ronald José Barth; Oliveira,Marcelo Fernandes de; Oliveira,Ana Cláudia Barneche de.
Despite a large availability of areas suitable for sunflower cropping in Central Brazil, few adapted cultivars are available in the market. The objective of this work was to select sunflower cultivars adapted to this important production region. Experimental data from 2000 to 2004 were obtained by the National Sunflower Trials, coordinated by Embrapa Soja. The evaluated traits were grain and oil yields. Two criteria were used for selection of cultivars: i) the general mean obtained from different environments; ii) partitioning of general mean in favorable and unfavorable environments. Partitioning of the general mean allowed to detect the specific environment indicated for each cultivar. For grain yield, the cultivar Helio 251 presented general indication,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Helianthus annuus; Genetic breeding; Interaction genotypes × Environments.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000200005
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Experience with Descriptors, Registration and Protection of vegetable cultivars: eggplant as a case study Horticultura Brasileira
Carvalho,Sabrina IC; Reifschneider,Francisco JB; Ribeiro,Cláudia SC; Bianchetti,Luciano B; Fernandez,Francisco L.
ABSTRACT The Registro Nacional de Cultivares [RNC (National Register of Cultivars)] and the Serviço Nacional de Proteção de Cultivares [SNPC (National Service for Cultivar Protection)] were established by the Ministry of Agriculture, Livestock and Food Supply (MAPA) in 1997. The registration of a cultivar in the RNC allows the production, processing and commercialization of seeds in the country. The right of commercial exploitation, assured by the protection of a cultivar in the SNPC, allows the allocation of resources to public and private breeding programs, and the subsequent launching of new cultivars. The authors’ experience with the theme and its relevance to the public and private sectors provided the base for this article, thus sharing the elements...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum melongena; Intellectual property; Seeds; Morphological characterization; Genetic breeding.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200146
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Formação de supercaracteres para seleção de famílias de maracujazeiro amarelo - DOI: 10.4025/actasciagron.v32i2.3328 Agronomy
Ferreira, Fábio Medeiros; Universidade Federal do Amazonas - Instituto de Ciências Exatas e Tecnologia em Itacoatiara; Neves, Leonarda Grillo; Universidade Estadual do Mato Grosso - Departamento de Agronomia; Bruckner, Claudio Horst; Universidade Federal de Viçosa - Departamento de Fitotecnia; Viana, Alexandre Pio; Universidade Estadual do Norte Fluminense - Laboratório de Melhoramento Genético Vegetal; Cruz, Cosme Damião; UFV; Barelli, Marco Antonio Aparecido; Unemat.
No presente estudo, objetivou-se formar supercaracteres para seleção simultânea de variáveis relacionadas à produção e qualidade dos frutos em famílias de irmãos completos e, ou, meios-irmãos de maracujazeiro amarelo (Passiflora edulis f. flavicarpa). Avaliaram-se 113 famílias e 11 variáveis, no Delineamento I de Comostock e Robinson, em blocos ao acaso com três repetições. A análise de fatores estabeleceu três supercaracteres: tamanho do fruto (TF), produtividade (PROD) e rendimento de indústria (RI). Para grande maioria das variáveis originais, foram verificados sinais de cargas fatoriais que refletem o verdadeiro sentido da seleção em programas de melhoramento de maracujá. Detectou-se variabilidade genética nos níveis hierárquicos de genitor masculino e...
Palavras-chave: Agronomia Passiflora edulis f. flavicarpa; Seleção simultânea; Análise multivariada; Melhoramento genético Melhoramento Vegetal Passiflora edulis f. flavicarpa; Simultaneous selection; Multivariate analysis; Genetic breeding.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3328
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Genetic control of Eucalyptus urophylla and E. grandis resistance to canker caused by Chrysoporthe cubensis Genet. Mol. Biol.
Guimarães,Lúcio Mauro da Silva; Resende,Marcos Deon Vilela de; Lau,Douglas; Rosse,Leonardo Novaes; Alves,Alexandre Alonso; Alfenas,Acelino Couto.
Chrysophorte cubensis induced canker occurs in nearly all tropical and subtropical regions where eucalypts are planted, causing losses in both wood quality and volume productivity, especially so in the warmer and more humid regions of Brazil. The wide inter and intra-specific genetic variability of resistance to canker among Eucalyptus species facilitates the selection of resistant plants. In this study, we evaluated resistance to this pathogen in five Eucalyptus grandis (G) and 15 E. urophylla (U) trees, as well as in 495 individuals from 27 progenies derived from crosses between the trees. In the field, six-months-old test seedlings were inoculated with C. cubensis. Lesion length in the xylem and bark was measured eight months later. The results...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic resistance; Genetic breeding; Eucalypt and interspecific hybrids.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300024
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Genetic parameters and agronomic evaluation of cassava genotypes PAB
Silva,Rodrigo de Souza; Moura,Elisa Ferreira; Farias Neto,João Tomé de; Sampaio,José Edson.
Abstract: The objective of this work was to estimate genetic parameters and predict genetic values for the selection of cassava (Manihot esculenta) genotypes in the state of Pará, Brazil. The trial was performed with 56 genotypes in two growing seasons (2012/2013 and 2013/2014), in the municipality of Igarapé-Açu, in the state of Pará, using the augmented blocks design with two control treatments. The evaluated traits were: plant shoot weight (PSW), number of roots per plant (NRP), number of rotten roots per plant (NRRP), fresh root yield (FRY), harvest index (HI), and starch content in the roots (SCR). The restricted maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods were used. There was genetic variability among genotypes for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Genetic breeding; Genetic variability..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000700834
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Genetics of coffee quality Braz. J. Plant Physiol.
Leroy,Thierry; Ribeyre,Fabienne; Bertrand,Benóit; Charmetant,Pierre; Dufour,Magali; Montagnon,Christophe; Marraccini,Pierre; Pot,David.
Coffee quality, in the present context of overproduction worldwide, has to be considered as a main selection criterion for coffee improvement. After a definition of quality, and an overview of the non genetic factors affecting its variation, this review focuses on the genetic factors involved in the control of coffee quality variation. Regarding the complexity of this trait, the different types of quality are first presented. Then, the great variation within and between coffee species is underlined, mainly for biochemical compounds related to quality (caffeine, sugars, chlorogenic acids, lipids). The ways for breeding quality traits for cultivated species, Coffea arabica and Coffea canephora are discussed, with specific challenges for each species. For C....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffea spp.; Biochemical compounds; Candidate genes; ESTs; Genetic breeding; Marker-assisted selection; Quality.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100016
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Mating system parameters in a high density population of andirobas in the Amazon forest PAB
Campos,Tatiana de; Cunha,Marcia Oliveira da; Sousa,Adna Cristina Barbosa de; Teixeira,Renata Beltrão; Raposo,Andrea; Sebbenn,Alexandre Magno; Wadt,Lucia Helena de Oliveira.
The objective of this work was to estimate the mating system parameters of a andiroba (Carapa guianensis) population using microsatellite markers and the mixed and correlated mating models. Twelve open‑pollinated progeny arrays of 15 individuals were sampled in an area with C. guianensis estimated density of 25.7 trees per hectare. Overall, the species has a mixed reproductive system, with a predominance of outcrossing. The multilocus outcrossing rate (t m = 0.862) was significantly lower than the unity, indicating that self‑pollination occurred. The rate of biparental inbreeding was substantial (t m ‑ t s = 0.134) and significantly different from zero. The correlation of selfing within progenies was high (r s = 0.635), indicating variation in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carapa guianensis; Allogamy; Conservation; Genetic breeding; Microsatellite; Population size.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000500006
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Melhoramento genético das raças gir e guzera pelo teste de progenie. Infoteca-e
VERNEQUE, R. da S.; TEODORO, R. L.; MARTINEZ, M. L..
bitstream/item/82855/1/Melhoramento-genetico-das-racas.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Melhoramento genetico; Genetic breeding; Progeny test.; Animal; Teste de Progênie..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/593348
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Melhoramento genético de bovinos na Amazônia. Infoteca-e
MARQUES, J. R. F..
Por que melhorar o rebanho? O que melhorar? Considerações sobre o que melhorar. Como melhorar? Porque cruzar? Por que inseminar? Cruzamento s recomendados. Seleção. Escolha de reprodutores. Escolha de matrizes. Formação de algumas racas nacionais. Esquemas gerais de cruzamentos.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Melhoramento genético; Brasil; Bovine; Genetic breeding; Selection.; Bovino; Cruzamento; Seleção.; Amazonia; Crossing..
Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/387581
Registros recuperados: 33
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