Consulta: creatorFacets:"Ragassi,Carlos Francisco"
Registros recuperados: 10
Data/hora: 06/06/2024 08:22:07

Identification of protein kinase SNF1 in CitEST
Provedor de dados: 74
Autores: Guidetti-Gonzalez,Simone; Ragassi,Carlos Francisco; Carrer,Helaine.
SnRKs (Sucrose non-fermenting-1 related kinases) is a family of protein kinases found in many crops, such as Arabidopsis, rice, sugarcane, tomato and several other plant species. This family of proteins is also present in other organisms like Saccharomyces cerevisiae (sucrose non-fermenting-1 - Snf1) and in mammals (AMP-activated protein kinases - AMPKs). There is evidence that SnRKs play an important role in plant responses to nutritional and environmental stresses and that SnRKs also play a major role in controlling key enzymes in the biosynthetic pathways of plants. In this work, we identified 18 contigs and two singletons encoding putative SnRKs in the CitEST database. All of them present highly conserved N-terminal catalytic domain, which is found in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SnRK; Sucrose non-fermenting-1 (SNF1); Transcription regulator.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500015

Genotipagem de polimorfismos associados com sistemas de macho-esterilidade em acessos de cebola adaptados ao Brasil
Provedor de dados: 75
Autores: Ragassi,Carlos Francisco; Santos,Maria do Desterro M dos; Fonseca,Maria Esther de N; Oliveira,Valter R; Buzar,Anne Giselle R; Costa,Cyro P da; Boiteux,Leonardo S.
A produção em escala comercial de sementes híbridas de cebola (Allium cepa) tem sido conduzida com o emprego de dois sistemas de macho-esterilidade do tipo genética-citoplasmática (CMS-S e CMS-T) em associação ao citoplasma normal (macho-fértil). No entanto, a análise molecular desses diferentes tipos citoplasmáticos ainda não está disponível para um grande número de acessos de cebola adaptados para cultivo em regiões tropicais. Além de adaptação às condições edafoclimáticas do Brasil, muitos desses acessos apresentam tolerância a doenças, sendo de potencial valor como genitores de híbridos. O presente trabalho visou identificar os tipos citoplasmáticos de acessos de cebola de diferentes grupos morfoagronômicos de interesse para o melhoramento genético no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Marcadores moleculares; Genoma mitocondrial; Macho-esterilidade genética-citoplasmática; Melhoramento genético.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000300009

Desempenho de cultivares de batata sob diferentes espaçamentos em solo naturalmente infestado com Ralstonia solanacearum
Provedor de dados: 75
Autores: Carvalho,Agnaldo D F; Lopes,Carlos Alberto; Ragassi,Carlos Francisco.
RESUMO Nos últimos anos, diversas cultivares nacionais de batata foram lançadas, tais como BRSIPR Bel e BRS Camila, como alternativas às cultivares importadas tradicionalmente cultivadas no Brasil. Avaliou-se o comportamento das cultivares BRSIPR Bel, BRS Camila e Agata quando plantadas em quatro espaçamentos entre batatas-semente na linha (15, 20, 25 e 30 cm) em um campo naturalmente infestado com Ralstonia solanacearum em Brasília-DF. O delineamento experimental foi de parcelas subdivididas com quatro repetições, sendo a parcela composta pelos diferentes espaçamentos e a subparcela pelas cultivares. Aos 59 dias após o plantio (DAP), a incidência de plantas com sintomas de murcha bacteriana foi avaliada e, na colheita, (116 DAP), foram avaliados: massa...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Murcha bacteriana; Resistência genética; Sistema de produção.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400507

Genetic diversity of tropical-adapted onion germplasm assessed by RAPD markers
Provedor de dados: 75
Autores: Santos,Maria do Desterro M dos; Ragassi,Carlos Francisco; Fonseca,Maria Esther de N; Buzar,Anne Gizelle R; Oliveira,Valter R; Melo,Paulo César T de; Boiteux,Leonardo S.
Onion is a crop of significant socioeconomic importance to Brazil. Onion germplasm with adaptation to tropical and sub-tropical conditions has played an important role in the development of this crop in the country. In this context, we studied the genetic diversity in a germplasm collection potentially useful for the development of cultivars for tropical and subtropical regions. The genetic variability of 21 accessions/cultivars that have been used as germplasm and/or were developed by onion breeding programs in Brazil was evaluated via RAPD markers. The following accessions were included in the study :'Red Creole', 'Roxa IPA-3', 'Valenciana 14', 'Beta Cristal', 'Diamante', 'Composto IPA-6', 'Aurora', 'Bojuda Rio Grande', 'Alfa Tropical', 'Pêra IPA-4',...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Molecular markers; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100019

Productivity, quality of fruits and architecture of Jalapeño pepper at different planting densities
Provedor de dados: 75
Autores: Ragassi,Carlos Francisco; Zucolotto,Juliana; Gomes,Lucas M; Ribeiro,Cláudia SC; Madeira,Nuno Rodrigo; Reifschneider,Francisco José B.
ABSTRACT Mechanizing the harvest of Jalapeño pepper involves changes in the production system. Spacings between plants in rows (10 to 40 cm; 60 cm fixed between rows) were evaluated in relation to plant architecture, productivity and fruit quality of cultivar BRS Sarakura during three years, in a randomized complete block design with five replicates. Productivity (41.9 to 78.8 t ha-1) and plant height (40.1 to 47.3 cm) responded linearly to density; on the other hand, productivity per plant responded negatively (0.48 to 1.04 kg plant-1). The stem first bifurcation height was little influenced. Fruit chemical analyses were carried out in the second year of the experiment; spacing significantly influenced pH (5.36 to 4.84), total titratable acidity (TTA)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Mechanized harvesting; Crop management; Processing.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000300331

Performance of advanced potato genotypes in organic and conventional production systems
Provedor de dados: 75
Autores: Ragassi,Carlos Francisco; Carvalho,Agnaldo DF de; Silva,Giovani Olegário da; Pereira,Gabriel Emiliano; Pereira,Arione da S.
ABSTRACT Potato is responsive to intensive agricultural input use; however, it can be produced in less intensive production systems (such as the organic system) by using appropriate production techniques and genotypes adapted to this system. This study aimed to evaluate the performance of advanced potato genotypes for tuber yield under conventional and organic production systems, in order to select potential genotypes to become new cultivars adapted to these systems. Fifteen advanced potato clones and two controls were evaluated under organic and conventional production systems, in 2016 and 2017, in Brasília-DF, Brazil. The experimental design was randomized blocks with three replicates and plots composed of two rows with 10 plants each, spaced 0.35 m...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Agronomic evaluation; Production systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100053

New resistance sources to root-knot nematode in Capsicum pepper
Provedor de dados: 75
Autores: Pinheiro,Jadir B; Silva,Giovani Olegario da; Macêdo,Amanda G; Biscaia,Danielle; Ragassi,Carlos Francisco; Ribeiro,Cláudia SC; Carvalho,Sabrina Isabel C de; Reifschneider,Francisco José B.
ABSTRACT Thirty seven pepper genotypes, Capsicum chinense, C. annuum and C. frutescens, were characterized for resistance to three root-knot nematode species (Meloidogyne javanica, M. incognita race 1 and M. enterolobii) aiming to find potential resistance sources to be used in breeding programs. Three experiments were carried out, in 2013, 2014 and 2016, in a greenhouse, in randomized block design and six replicates, one plant/pot. Data were submitted to analysis of variance and average clustering. All evaluated pepper genotypes were resistant or immune to M. javanica. For M. incognita race 1, all accessions of C. frutescens, evaluated in the first experiment, were resistant, whereas the six accessions of C. chinense were susceptible. For M. incognita,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum spp.; Meloidogyne javanica; M. incognita race 1; M. enterolobii.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100033

Reaction of advanced inbred lines of Habanero pepper to Ralstonia pseudosolanacearum and Phytophthora capsici
Provedor de dados: 75
Autores: Soares,Renato Silva; Ribeiro,Cláudia Silva da Costa; Ragassi,Carlos Francisco; Lopes,Carlos Alberto; Carvalho,Sabrina Isabel Costa; Reis,Ailton; Braz,Leila Trevisan; Reifschneider,Francisco José Becker.
ABSTRACT Habanero pepper is important in the international market and is becoming popular in the national market; however, few cultivars adapted and resistant to devastating diseases caused by the soilborne pathogens Ralstonia pseudosolanacearum (RP) and Phytophthora capsici (PC) are available in Brazil. The aim of this study was to evaluate the reaction of Habanero-type advanced inbred lines, developed by Embrapa Hortaliças breeding program, to RP and PC. Although not required for the process of protection, registration and release of new cultivars, this information is important. CNPH 15.737; CNPH 15.740; CNPH 15.744; CNPH 15.745; CNPH 15.749 and CNPH 15.750 were inoculated with three RP and one PC isolates. Plants showing wilted leaves (RP) and stem...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum; Bacterial wilt; Phytophthora wilt; Incidence; Severity index; Resistance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400395

Efeito da descompactação profunda de solo na produção da cultura da batata
Provedor de dados: 75
Autores: Ragassi,Carlos Francisco; Favarin,José Laércio; Shiraishi,Fábio Akio; Moita,Antônio Williams; Sako,Henry; Melo,Paulo César T de.
O preparo de solo para batata no Brasil é geralmente realizado com o emprego de grade aradora (preparo raso), máquina cujo uso frequente estabelece uma zona compactada abaixo de 20 cm. Em tese, a descompactação profunda pode aumentar a produtividade e reduzir a incidência de doenças no tubérculo e esses efeitos podem variar com a espécie de gramínea cultivada anteriormente à cultura da batata. O objetivo do presente trabalho foi avaliar a descompactação profunda associada ao cultivo de Panicum maximum cv. Tanzânia, Brachiaria brizantha cv. Marandu e milho (Zea mays) híbrido 'Dekalb 191' e, como testemunha, o preparo raso associado ao cultivo do mesmo híbrido de milho. O experimento foi conduzido em Piracicaba-SP, de dezembro de 2006 a outubro de 2008 no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Gramínea antecessora; Doença; Manejo do solo.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000400014

Advanced lines of Jalapeño pepper with potential for mechanical harvesting
Provedor de dados: 65
Autores: Gomes,Lucas Matias; Ribeiro,Cláudia Silva da Costa; Ragassi,Carlos Francisco; Silva,Lorena Sousa; Reifschneider,Francisco José Becker.
ABSTRACT:  The objective of this study was to evaluate the plant and fruit characteristics in advanced lines of Jalapeño pepper for mechanical harvesting. Thus, two experiments were carried out in the field. Experiment I (2015) was conducted as a randomized block design (three replications and eight plants per plot) and Experiment II (2016) in a completely randomized design (five replications and ten plants per plot). In 2015, lines CNPH 30,112, CNPH 30,118, CNPH 30,147, CNPH 30,159, CNPH 30,183, and CNPH 30,245 were evaluated, together with the control ‘BRS Sarakura’. Significant differences were detected for fruit and plant characteristics (P&lt;0.05). Lines CNPH 30,118, CNPH 30,147, CNPH 30,159, and CNPH 30,245 were selected based on plant height and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum L.; Capsaicinoids; Breeding; Earliness; Processing; Soluble solids.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200151