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| ZAMBOLIM, l.; CAIXETA, E. T.. |
| Coffee leaf rust is the most important disease thorought the world. The disease caused by a biotrofic fungi growing areas of the world coffee leaf rust causes losses from Central American coffee park. identified in 1860. Madagascar and Java). I the disease was identified in Brazil. America, Caribean and Mexico. Currently, more than 50 identified by using coffee differentials clones of CIFC in the world. The most comum and widespread resistance genes ( identified by the differential interaction of genes of the host and of the pathogen. M technique, found two different genes in HdT 832/1 and HdT 832/2 not yet identified in differential clones ( to refer the isolates of system. Several pathotypes was found in several countri based on a set of differentials of... |
| Tipo: Artigo de periódico |
Palavras-chave: Hemileia Vastatrix; Leaf rust; Coffea; Pathotypes. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139326 |
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| VALDO, S. C. D.; WENDLAND, A.; ARAÚJO, L. G.; MELO, L. C.; PEREIRA, H. S.; MELO, P. G.; FARIA, L. C.. |
| Bacterial wilt of common bean caused by Curtobacterium flaccumfaciens pv. flaccumfaciens is an important disease in terms of economic importance. It reduces grain yield by colonizing xylem vessels, subsequently impeding the translocation of water and nutrients to the superior plant parts. The existence of physiological races in C. flaccumfaciens pv. flaccumfaciens has not so far been reported. The objective of the present investigation was to identify physiological races, evaluate differential interaction, and select resistant genotypes of common bean. Initially, 30 genotypes of common bean were inoculated with eight isolates exhibiting different levels of aggressiveness, under controlled greenhouse conditions. Disease was assessed 15 days after... |
| Tipo: Artigo de periódico |
Palavras-chave: Partial diallels; Differentiating series; Feijão; Phaseolus vulgaris; Melhoramento genético vegetal; Resistência genética; Plant breeding; Aggression; Genetic resistance; Varietal resistance; Pathotypes. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1057294 |
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| Silva,Gisele B.; Zambolim,Laércio; Prabhu,Anne S.; Araújo,Leila G.; Zimmermann,Francisco J.P.. |
| The phenotypic diversity of Magnaporthe grisea was evaluated based on leaf samples with blast lesions collected from eight commercial fields of the upland rice cultivars 'BRS Primavera' and 'BRS Bonança', during the growing seasons of 2001/2002 and 2002/2003, in Goias State. The number of M. grisea isolates from each field utilized for virulence testing varied from 28 to 47. Three different indices were used based on reaction type in the eight standard international differentials and eight Brazilian differentials. The M. grisea subpopulations of ´Primavera' and 'Bonança', as measured by Simpson, Shannon and Gleason indices, showed similar phenotypic diversities. The Simpson index was more sensitive relation than those of Shannon and Gleason for pathotype... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Pyricularia grisea; Population dynamics; Rice blast; Pathotypes; Virulence. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582007000100001 |
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| DIANESE, A. de C.; ZACARONI, A. B.; SOUZA, B. C. P. de; PAGANI, A. P. da S.; PINHEIRO, N. O.; GOMES, E. M. de C.; TORRES, G. A. M.; CONSOLI, L.; CAFÉ-FILHO, A. CORRÊA. |
| Abstract: Wheat blast caused by Magnaporthe oryzae pathotype Triticum (MoT) has become an important fungal disease on wheat and is now present in most of the important wheat-producing tropical regions of the world. This study evaluated head blast incidence on the spikes of 281 hexaploid wheat genotypes and two Triticum durum cultivars across three years (2011?2013) in the Cerrado Biome in the Brazilian Midwest, a hotspot area and where the highest disease levels have been recorded. Forty eight host lines exhibiting moderate to high resistance to the disease included synthetic hexaploid wheat genotypes (SHW) and derivatives (17), breeding lines (16), landraces (2), and cultivars (13). Thirty early genotypes were identified to have head blast incidence... |
| Tipo: Artigo de periódico |
Palavras-chave: Cultivares; Blast reaction; Trigo; Brusone; Cerrado; Ecossistema; Fungo; Pyricularia Oryzae; Magnaporthe oryzae; Wheat; Cultivars; Pathotypes; Landraces; Hexaploidy; Head; Fungi; Ecosystems; Disease incidence; Triticum turgidum subsp. durum; Blast disease. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1140557 |
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| Prabhu,Anne Sitarama; Castro,Emílio da Maia de; Araújo,Leila Garcês de; Berni,Rodrigo Fascin. |
| The objective of this work was to evaluate the resistance spectra of six elite breeding lines of rice, developed for improved yield and grain quality, in inoculation tests in the greenhouse and in the field. Forty-six isolates of Pyricularia grisea collected from the cultivar Primavera, 31 from the cultivar Maravilha and 19 from six elite breeding lines, totaling 96 were utilized for inoculations. Out of 11 international and 15 Brazilian pathotypes, IC-1, IB-9, and BD-16, respectively, were identified as most frequent isolates collected from the cultivar Primavera. The isolates retrieved from Maravilha belong to four international and 11 Brazilian pathotypes, the predominant ones being IB-9 and IB-49 and BB-1 and BB-21, respectively. Lines CNAs 8711 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Pathotypes; Physiologic races; Rice blast; Inoculation methods. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000200006 |
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| TREVISOL, I. M.; JAENISCH, F. R. F.; SILVA, V. S.; BRENTANO, L.; KLEIN, T. A. P.; IANISKI, F.; CARON, L.; OKINO, C. H.; SILVA, A. D.; RITTERBUSCH, G. A.; ESTEVES, P. A.. |
| Projeto/Plano de Ação: 03.09.00.018. |
| Tipo: Separatas |
Palavras-chave: Patótipos.; Bronquite.; Pathotypes. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/953295 |
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