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Palavra-chave Disease resistance (150) Plant breeding (40) Variedade Resistente (39) Varieties (39) Corn (32) Maize (32) ข้าวโพด (32) Downy mildew (27) โรคราน้ำค้าง (23) Yields (22) Melhoramento Genético Vegetal (18) Doença de Planta (17) Variety trials (17) Plant diseases (15) Cerrado (14) Feijão (13) Fungi (13) Beans (12) Phaseolus Vulgaris (12) Maracujá (11) Mais... Tipo do documento Folhetos (41) Info:eu-repo/semantics/article (23) Text (15) Folders (14) PhysicalObject (2) Info:eu-repo/semantics/report (1) Journal Article (1) Journal article (1) Parte de livro (1) Report (1) Mais... Ano 2023 (1) 2022 (1) 2020 (4) 2019 (3) 2018 (3) 2017 (1) 2016 (2) 2015 (5) 2014 (3) 2013 (3) 2012 (3) 2011 (2) 2010 (1) 2009 (3) 2008 (3) 2007 (5) 2006 (11) 2005 (3) 2004 (10) 2003 (9) Mais... País Brazil (78) Thailand (38) France (15) India (10) Japan (2) Mexico (2) United States (2) Argentina (1) Belgium (1) Chile (1) Mais... Idioma Inglês (78) Português (55) Thailandês (4) Espanhol (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 150 Primeira ... 1 2 3 4 5 6 7 8 ... Última Screening common bean germplasm for resistance to genetically diverse Sclerotinia sclerotiorum isolates from Argentina Agronomy Abán, Carla Luciana; Taboada, Gisel Maria; Casalderrey, Norma Beatriz; Maggio, Maria Elisa; Chocobar, Mario Osvaldo; Spedaletti, Yamila Andrea; Gonzalez, Mónica Alicia Aparicio; Vizgarra, Oscar Vicéforo; Galván, Marta Zulema. White mold caused by Sclerotinia sclerotiorum (Lib.) de Bary is a devastating disease that affects the common bean (Phaseolus vulgaris. L) crop worldwide. In Argentina, white mold has been detected in all bean production areas, reaching seed yield and quality losses up to 100% on susceptible common bean cultivars under favorable weather conditions. The aim of this study was to screen the physiological resistance of 20 common bean accessions to five genetically distinct isolates of S. sclerotiorum collected from the main common bean growing area of Argentina, using the greenhouse straw test. The white mold reaction was scored at 7, 14, and 21 days post-inoculation using a 1 (no disease symptoms) to 9 (severely diseased or dead plants) scale and the area... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris white mold disease resistance straw test. Fitopatologia Melhoramento Vegetal Phaseolus vulgaris; White mold; Disease resistance; Straw test.. Ano: 2020 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42786 Screening of melon populations for resistance to Didymella bryoniae in greenhouse and plastic tunnel conditions BABT Tsutsumi,Cláudio Yuji; Silva,Norberto da. Studies were carried out to evaluate melon populations for resistance to Gummy Stem Blight, caused by Didymella bryoniae for use in breeding programs under greenhouse and plastic tunnel conditions. Were evaluated reactions of half-sib populations of PI 140471 and Anô nº 2 had as with susceptible check Eldorado 300. Plants were inoculated 45 days for needle prickling followed by application of 0.05 ml of 5.0 x 10(5) spores/ml suspension in axis of third and fourth true leaves.Resistance evaluation was made after 90 days of age using a scale varying one to five. PI 140471 and Anô nº 2 progenies were found superior and differed significantly with the checker Eldorado 300 for the F Test. Anô nº 2 possessing multiple resistance to diseases and desirable... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis melo; Gummy stem blight; Plant breeding; Disease resistance. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000200002 Evaluation of soybean breeding lineages to new sources of root-knot nematode resistance Ciência e Agrotecnologia Hamawaki,Osvaldo Toshiyuki; Hamawaki,Raphael Lemes; Nogueira,Ana Paula Oliveira; Glasenapp,Jacqueline Siqueira; Hamawaki,Cristiane Divina Lemes; Silva,Carolina Oliveira da. ABSTRACT In Brazil, as the soybean crop expands the losses caused by nematodes as well as its incidence in producing areas have increased. Therefore, this work aimed to develop a non-genetically modified soybean which combines desirable traits as the root-knot nematode resistance, early-maturity, high seed yielding, and high oil and protein contents. Consequently, seeds (F2) derived from the double-crossing between (Guarani x Sambaiba) x (M Soy 6101 x Conquista) were bulked to grow the F3 generation. Following generations were advanced by the SSD method of breeding until F6. Thus, plants showing superior characteristics were planted separately to perform progeny tests and then advanced breeding lines were thoroughly tested and compared to standards in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant breeding; Disease resistance; Glycine Max; Pratylenchus brachyurus.. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100222 Genética de la resistencia al complejo Phyllachora maydis Maubl., Monographella maydis Müller & Samuels y Coniothyrium phyllachorae Maubl., en diversos genotipos de maíz (Zea mays L.). Colegio de Postgraduados Hernández Ramos, Lervin. El complejo de la mancha de asfalto del maíz, inducido por los hongos Phyllachora maydis y Monographella maydis, es una enfermedad de importancia económica en México y Centroamérica, debido a que provoca severas pérdidas en el rendimiento y deteriora la calidad del forraje. El mejoramiento genético de la resistencia del hospedante a través de la generación de genotipos resistentes representa la medida de control más eficiente para el control de la enfermedad. Se conoce poco respecto a la base genética de la resistencia al CMA, por lo cual se determinó la Aptitud Combinatoria General (ACG) y Aptitud Combinatoria Especifica (ACE) de 18 líneas endogámicas S7 mediante el Modelo I de frecuencias fijas de Griffing, bajo el Método II que incluyó las 18 líneas más... Palavras-chave: Phyllachora maydis; Zea mays L.; Resistencia a enfermedades; Herencia de la resistencia; Análisis dialélico; ACG; ACE; Disease resistance; Inheritance of resistance; Diallel analysis; GCA; SCA; Fitopatología; Maestría. Ano: 2014 URL: http://hdl.handle.net/10521/2318 Jitomate riñón tolerante a patógenos de raíz y aptitud combinatoria de colectas de jitomate (Solanum lycopersicum L.) nativo de México. Colegio de Postgraduados Guzmán Moreno, Marco Antonio. En la primer parte del presente trabajo se tuvo como base el uso de germoplasma de jitomate nativo riñón para estudiar su tolerancia a patógenos de la raíz. Se utilizaron generaciones avanzadas obtenidas por selección (S4) y por hibridación (F4), así como progenitores originales, provenientes de colectas de los estados de Hidalgo, Puebla y Tabasco. Las generaciones en S4 y F4 más los progenitores originales fueron evaluados para resistencia poligénica a patógenos de raíz como Fusarium spp. y Ralstonia spp. en condiciones de campo e invernadero. Para la siembra en campo se utilizó un diseño de bloques completos al azar con cuatro repeticiones. El sitio experimental estuvo sembrado con jitomate comercial los últimos ocho años, encontrándose infestado en... Palavras-chave: Solanum lycopersicum; Pudriciones de raíz; Resistencia a enfermedades; Cruzas dialélicas; Aptitud combinatoria; Genética; Doctorado; Root-rots; Disease resistance; Diallel crosses; Combining abillity. Ano: 2012 URL: http://hdl.handle.net/10521/1816 Protective effect of an antimicrobial peptide from Mytilus edulis chilensis expressed in Nicotiana tabacum L. Electron. J. Biotechnol. Arenas,Gloria; Marshall,Sergio H.; Espinoza,Valeria; Ramírez,Ingrid; Peña-Cortés,Hugo. A "defensin-like" antibacterial peptide from Mytilus edulis chilensis, was sub-cloned into a binary vector for expression in plant tissues. The resulting new clone was electroporated into A. tumefaciens to transform tobacco plants. The presence of the construct in transgenic tobacco lines was demonstrated through RT-PCR, Northern and Western blots. Transformed positive plants were selected and grown for challenging. Tobacco leaves were infiltrated with Pseudomonassyringae pv. syringae and visual lesions determined at different times post-exposure. Of seven plants exposed, four gave variable protection up to seven days post-infection while one of them appears to be fully protected. These results suggest that defensin-like antimicrobial peptides from... Tipo: Journal article Palavras-chave: Antibacterial peptide; Disease resistance; In vivo expression; Nicotiana tabacum L.; Pseudomonassyringae pv. syringae; Transgenic tobacco plants. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000200008 New soybean (Glycine max Fabales, Fabaceae) sources of qualitative genetic resistance to Asian soybean rust caused by Phakopsora pachyrhizi (Uredinales, Phakopsoraceae) Genet. Mol. Biol. Pierozzi,Pedro Henrique Braga; Ribeiro,Aliny Simony; Moreira,José Ubirajara Vieira; Laperuta,Larissa Di Cássia; Rachid,Breno Francovig; Lima,Wilmar Ferreira; Arias,Carlos Alberto Arrabal; Oliveira,Marcelo Fernandes de; Toledo,José Francisco Ferraz de. Asian soybean rust (ASR), caused by the phytopathogenic fungi Phakopsora pachyrhizi, has caused large reductions in soybean (Glycine max) yield in most locations in Brazil where it has occurred since it was first reported in May 2001. Primary efforts to combat the disease involve the development of resistant cultivars, and four dominant major genes (Rpp1, Rpp2, Rpp3 and Rpp4) controlling resistance to ASR have been reported in the literature. To develop new long-lasting soybean ASR resistance genes, we used field experiments to assess ASR leaf lesion type in 11 soybean genotypes (BR01-18437, BRS 184, BRS 231, BRS 232, BRSGO Chapadões, DM 339, Embrapa 48, PI 200487, PI 230970, PI 459025-A and PI 200526) and the 55 F2 generations derived from their... Tipo: Info:eu-repo/semantics/article Palavras-chave: Disease resistance; Genetic inheritance; Major genes; Phakopsora pachyrhizi. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300018 Differential expression of genes identified from Poncirus trifoliata tissue inoculated with CTV through EST analysis and in silico hybridization Genet. Mol. Biol. Cristofani-Yaly,Mariângela; Berger,Irving J.; Targon,Maria Luisa P.N.; Takita,Marco A.; Dorta,Sílvia de O.; Freitas-Astúa,Juliana; Souza,Alessandra A. de; Boscariol-Camargo,Raquel L.; Reis,Marcelo S.; Machado,Marcos A.. Citrus is the most important fruit crop in Brazil and Citrus tristeza virus (CTV) is considered one of the most important pathogens of citrus. Most citrus species and varieties are susceptible to CTV infection. However, Poncirus trifoliata, a close relative of citrus, is resistant to the virus. In order to better understand the responses of citrus plants to the infection of CTV, we constructed expressed sequence tag (EST) libraries with tissues collected from Poncirus trifoliata plants, inoculated or not with Citrus tristeza virus at 90 days after inoculation, grafted on Rangpur lime rootstocks. We generated 17,867 sequence tags from Poncirus trifoliata inoculated (8,926 reads) and not (8,941 reads) with a severe CTV isolate. A total of 2,782 TCs... Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus; Disease resistance; Citrus tristeza virus; Biotic stress. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500025 An AFLP marker linked to the Pm-1 gene that confers resistance to Podosphaera xanthii race 1 in Cucumis melo Genet. Mol. Biol. Teixeira,Ana Paula Matoso; Barreto,Fatima Aparecida da Silva; Camargo,Luis Eduardo Aranha. Brazil produced 330,000 metric tons of melons in 2005, principally in the Northeast region where one of the most important melon pathogens is the powdery mildew fungus Podosphaera xanthii. The disease is controlled mainly by incorporating single dominant resistance genes into commercial hybrids. We report on linkage analysis of the Pm-1 resistance gene, introgressed from the AF125Pm-1 Cantalupensis Charentais-type breeding line into the yellow-fleshed melon (Group Inodorus) breeding line AF426-S by backcrossing to produce the resistant line AF426-R, and the amplified fragment length polymorphism (AFLP) marker M75/H35_155 reported to be polymorphic between AF426-S and AF426-R. Segregation analysis of M75/H35_155 using a backcross population of 143 plants... Tipo: Info:eu-repo/semantics/article Palavras-chave: AFLP marker; Cucumis melo; Disease resistance; Linkage analysis; Powdery mildew. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300023 Reaction of Capsicum peppers commercialized in the Federal District to bacterial wilt Horticultura Brasileira Rossato,Maurício; Santiago,Thais R.; Lopes,Carlos Alberto. ABSTRACT In Brazil, the bacterial pathogens Ralstonia solanacearum and R. pseudosolanacearum cause substantial losses by inducing bacterial wilt on several solanaceous crops; R. pseudosolanacearum is the main species associated with peppers (Capsicum sp.). To verify the bacterial wilt reaction on Capsicum peppers commercialized in the Federal District (DF), fruits of several genotypes within this genus were collected from six different fairs distributed in the satellite cities of Gama, Sobradinho and Guará. Seedlings with four true leaves derived from seeds extracted from such fruits were root inoculated with 108 CFU/mL with a representative isolate of R. pseudosolanacearum (race 1, biovar 3, phylotype I, sequevar 18). The evaluated species were: Capsicum... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ralstonia solanacearum; Ralstonia pseudosolanacearum; Capsicum sp.; Capsicum chinense; Capsicum baccatum var. pendulum; Capsicum frutescens; Disease resistance. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200173 Sources of resistance against the Pepper yellow mosaic virus in chili pepper Horticultura Brasileira Bento,Cíntia dos S; Rodrigues,Rosana; Zerbini Júnior,Francisco Murilo; Sudré,Cláudia P. The Pepper yellow mosaic virus (PepYMV) naturally infects chili and sweet pepper, as well as tomato plants in Brazil, leading to severe losses. This work reports the reaction to the PepYMV of 127 Capsicum spp. accessions, aiming at identifying resistance sources useful in breeding programs. The experiment was carried out in a completely randomized design, with eight replications, in greenhouse conditions. Plants were protected with an insect-proof screen to avoid virus dissemination by aphids. Leaves of Nicotiana debneyi infected with the PepYMV were used as the inoculum source. Plants were inoculated with three to four fully expanded leaves. A second inoculation was done 48 hours later to avoid escapes. Only the youngest fully expanded leaf was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum spp.; Pepper yellow mosaic virus; Potyvirus; Germplasm evaluation; Disease resistance; Pre-breeding. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000200013 Avaliação de linhagens de soja quanto a resistência ao cancro-da-haste. Infoteca-e PAIVA, F. de A.. Tipo: Folhetos Palavras-chave: Resistencia a doenca; Soybean; Cerrado; Glycine Max; Fungo; Linhagem; Soja; Disease resistance; Fungi; Progeny. Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/243682 Reação de espécies de passiflora a nematóides-das-galhas. Infoteca-e SHARMA, R. D.; JUNQUEIRA, N. T. V.; GOMES, A. C.. Tipo: Folders Palavras-chave: Nematóide de planta; Plant nematodes; Plant galls; Galha; Maracujá; Meloidoginose; Passiflora Edulis; Variedade Resistente; Disease resistance; Passion fruits. Ano: 2005 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569452 BRS Pétala soybean cultivar. Infoteca-e SOUZA, P. I. M.; MOREIRA, C. T.; FARIAS NETO, A. L.; ALMEIDA, L. A.; KIIHL, R. A. S.; FARIA, L. C.; ARANTES, N. E.; SPEHAR, C. R.; ABUD, S.; NUNES JÚNIOR, J.. Tipo: Folders Palavras-chave: Glycine Max; Melhoramento Vegetal; Soja; Variedade; Variedade Resistente; Disease resistance; Plant breeding; Soybeans; Varieties. Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568303 A pereira "Packham's Triumph". Infoteca-e FAORO, I. D.; SEZERINO, A. A.; PASA, M. da S.; ARGENTA, L. C.; FIORAVANÇO, J. C.; OLIVEIRA, P. R. D. de. O cultivar de pereira ?Packham?s Triumph? é descrito nesse trabalho quanto a origem, adaptação climática e botânica e características agronômicas. Também são apresentados os principais aspectos morfológicos, fisiológicos, de resistência a doenças da planta, porta-enxertos, demandas por plantas polinizadoras e armazenagem. Termos para indexação: Pyrus communis; cultivar de pera; resistência às doenças. Abstract ? the pear cv. Packham?s Triumph is described in this article as its origin, climate adaptation, botanical and agronomic characteristics. It is also presented the main morphological, physiological aspects, plant disease resistance, rootstocks, demands for pollinating plants and storage. Index terms: Pyrus communis; pear cultivar; disease resistance. Tipo: Folhetos Palavras-chave: Cultivar de pera; Resistência às doenças; Pear cultivar; Pyrus Communis; Doença de Planta; Pêra; Disease resistance. Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103151 Japira: cultivar de banana resistente à sigatoka-negra. Infoteca-e OLIVEIRA, T. K. de; SIVIERO, A.; PEREIRA, J. E. S.; SILVA, S. de O. e. Esta publicação apresenta a cultivar de banana Japira, resistente à sigatoka-negra. Tipo: Folders Palavras-chave: Banana; Musa sp; Variedade Resistente; Doença Fúngica; Sigatoka Negra; Mycosphaerella Fijiensis; New variety; Disease resistance; Black Sigatoka. Ano: 2006 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/505562 Reação de espécies de Piper a dois isolados de Nectria haematococca f. sp. piperis. Infoteca-e ALBUQUERQUE, F. C. de; DUARTE, M. de L. R.; BENCHIMOL, R. L.; ENDO, T.. Tipo: Folhetos Palavras-chave: Resistência a doença; Pará; Brasil; Fungal diseases; Fusariose; Fungo; Fusarium Solani; Nectria Haematococca; Pimenta do Reino; Piper Nigrum; Amazonia; Fungi; Disease resistance. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375368 Trigo BRS 207: nova opcao para os triticultores do Distrito Federal e dos estados de Minas Gerais e Goias. Infoteca-e ANDRADE, J. M. V. de. Tipo: Folhetos Palavras-chave: Wheats; Cerrado; Irrigação; Rendimento; Trigo; Triticum Aestivum; Variedade Resistente; Disease resistance; Irrigation; Varieties; Yields. Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567581 BRS Supremo: cultivar de grão preto de feijoeiro comum de porte ereto indicada para a região do Distrito Federal. Infoteca-e CARVALHO, W. P. de; ALBRECHT, J. C.. ABSTRACT: During the years 2001 and 2002, four experiments were conducted in the winter season, under irrigation and in the raining season in the experimental area of the Embrapa Cerrados Research Center at Planaltina, Federal District. The objective was to identify cultivars that presented the following characteristics: resistance to diseases, high yeld, resistance to lodging, desirable plant height and good market acceptance, to be indicated for cultivation in the Federal District. It was concluded that the cultivar BRS Supremo is indicated for this region, due to its high yield characteristics, erect type, resistance to diseases and lodging, as well as its excellent cooking qualities. Tipo: Folhetos Palavras-chave: Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente; Disease resistance; Beans; Plant breeding; Varieties. Ano: 2007 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570291 Reprodução e patogenicidade de Meloidogyne javanica no híbrido EC-2-0 de maracujá-azedo. Infoteca-e SHARMA, R. D.; RITZINGER, C. H. S. P.; JUNQUEIRA, N. T. V.; ALVES, R; T.. RESUMO: O nematóide formador de galha das raízes, Meloidogyne javanica (Treub) Chitwood constitui-se ameaça para a cultura do maracujá-azedo, Passiflora edulis f. flavicarpa na Região do Cerrado. O híbrido EC-2-0 (cultivar Marília Sul Brasil x Roxo Australiano) tem grande potencial de produção no Cerrado e maior tolerância às doenças da parte aérea. O ensaio foi conduzido em casa de vegetação, na Embrapa Cerrados, Planaltina-DF, visando a determinar a patogenicidade e a reprodução desse nematóide no híbrido EC-2-0 de maracujá-azedo aos diferentes tipos de inóculos: 100, 1000, 10.000 ovos e juvenis de segundo estágio por kg de solo (50% mistura de Latossolo Vermelho Escuro e areia grossa do rio com calagem, adubado e autoclavado) e por planta com 21 dias.... Tipo: Folhetos Palavras-chave: Nematóide de planta; Plant nematodes; Plant galls; Galha; Maracujá; Meloidoginose; Passiflora Edulis; Variedade Resistente; Disease resistance; Passion fruits. Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568535 Registros recuperados: 150 Primeira ... 1 2 3 4 5 6 7 8 ... Última

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