Reação de genótipos de feijoeiro comum a Fusarium oxysporum f. sp. phaseoli, Macrophomina phaseolina e Xanthomonas campestris pv. phaseoli

Maringoni, Antônio Carlos; Lauretti, Renato Luis Bertoni

doi:10.1590/s0100-204x1999000400004

Cited by 10 publications

(12 citation statements)

References 6 publications

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“…The high susceptibility of some evaluated bean cultivars can be explained by the selection of plants in the absence of the pathogen or resistance in the parents that gave rise to them (MARINGONI; LAURETTI, 1999). The source of resistance in studies of inheritance in Mexico from beans to M. phaseolina is found in BAT 477 (HERNANDEZ-DELGADO et al, 2009), a genotype not studied in this work.…”

Section: Incidence and Sanitary Severity By Common Bean Cultivarsmentioning

confidence: 87%

Incidence of base rot and wilt, sanitary severity and influence about seed pathology by cultivars of common bean (Phaseolus vulgaris)

et al. 2019

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The objective of this work was to conduct a temporal evaluation of incidence of rot base and sanitary severity, and to relate the impact on the seed pathology of common bean cultivars. In the 2015-2016 harvest, in the city of Ipameri, Goiás, ten cultivars of common bean were evaluated (BRS Estilo©, BRS Pérola©, IPR Tangará©, IPR Tuiuiú©, IPR Uirapuru©, IAC Milênio©, Imperador©, IAC F3 R2©, IAC OTG© and IPR Campos Gerais©) and distributed into five blocks, totaling 40 experimental units. The incidence of wilt and base rot and sanitary severity were analyzed by taking ten random samples per block at 21, 28, 56, 63 and 69 days after planting. At the end of 120 days, a total of 20 plants were harvested per cultivar, and 250 seeds were harvested for application of the Blotter Test method. From 21 to 69 days after planting, the cultivars BRS Pérola© and IPR Campos Gerais© deserve to be highlighted for presenting the lowest incidence of wilt in the reproductive and vegetative cycles. The cultivar BRS Pérola© showed the lowest incidence of wilt and sanitary severity. In the analysis of harvested seeds, the cultivar BRS Pérola© presented high physiological quality for all evaluated parameters. On the other hand, Cramberry (OTG)© showed low physiological potential in germination and vigor tests.

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Section: Incidence and Sanitary Severity By Common Bean Cultivarsmentioning

confidence: 87%

Incidence of base rot and wilt, sanitary severity and influence about seed pathology by cultivars of common bean (Phaseolus vulgaris)

et al. 2019

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“…A importância do CBC tem sido descrita em razão da dificuldade de controle da doença, principalmente para o cultivo em áreas com alto potencial de inóculo e a ineficiência do controle químico, tanto para tratamento de sementes, quanto por meio de pulverizações foliares. Entre as medidas de controle empregadas verifica-se o cultivo em áreas não infestadas com o patógeno, uso de sementes sadias, rotação de culturas, uso adequado de irrigação e o emprego de cultivares resistentes (Maringoni & Lauretti, 1999). Entre as estratégias do manejo integrado de doenças, a resistência genética é considerada uma importante alternativa, sendo de fácil adoção pelos agricultores em razão de seu baixo custo e por ser ecologicamente segura, diminuindo, ou até mesmo evitando, o uso indiscriminado de defensivos agrícolas (Costa & Rava, 2003).…”

Section: (Recebido Em 19 De Junho De 2008 E Aprovado Em 25 De Novembrunclassified

Reação de genótipos de feijão ao crestamento bacteriano comum, avaliado por dois métodos de inoculação

Silva¹,

Santos

Balbinot³

et al. 2009

Ciênc. agrotec.

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RESUMOConhecer a resistência de genótipos de feijão à fitopatógenos é importante para uso em programas de melhoramento genético. Duas técnicas de inoculação bacteriana foram testadas para avaliar a sensibilidade de genótipos de feijão ao crestamento bacteriano comum, causado por Xanthomonas axonopodis pv. phaseoli. Foram inoculados folíolos de 56 genótipos de feijão, utilizando-se das técnicas de agulhas múltiplas e incisão com tesoura, utilizando o isolado XAP 15497. Foi possível classificar 21 genótipos resistentes, 13 moderadamente resistentes, 9 moderadamente suscetíveis e 13 suscetíveis pelo método de inoculação com agulhas múltiplas. No método de inoculação com tesoura, foi possível classificar 24 genótipos como resistentes, 21 como moderadamente resistentes, 7 como moderadamente suscetíveis e 4 suscetíveis. Os genótipos IPR Chopim, IAPAR 81, IAPAR 16, BRS Campeiro, BRS Radiante, IAPAR 80, UTF 6, SM 9906, PI 2072620, LP 01-51, PB 4, Uirapuru, IAPAR 20, Zonin, IAPAR 31, 2 V, CNPF 7762, BRS Talismã, Pérola, Lon Rosinha e UTF 9 tiveram comportamento semelhante diante dos dois métodos de inoculação. Verificou-se que os dois métodos de inoculação foram eficientes para a determinação das reações de suscetibilidade e resistência dos genótipos. Porém, a técnica de inoculação com agulhas múltiplas demonstrou maior praticidade e precisão para a avaliação da área foliar inoculada. Termos para indexação: Resistência, Phaseolus vulgaris, Xanthomonas axonopodis pv. phaseoli. ABSTRACTThe knowledge of resistance of bean genotypes to pathogens is important to genetic breeding programs. Two methods of bacterial inoculation were tested to evaluate the sensitivity of bean genotypes to common bacterial blight, caused by Xanthomonas axonopodis pv. phaseoli. Leaves of 56 bean genotypes were inoculated by the method of multiple needles and the method of incision with scissors, using the isolated XAP 15497. We classified 21 genotypes as resistant, 13 as moderately resistant, 9 as moderately susceptible, and 13 as susceptible by the method of inoculation with multiple needles. With the method of inoculation with scissors it was possible to classify 24 genotypes as resistant, 21 as moderately resistant, 7 as moderately susceptible, and 4 as susceptible. The genotypes IPR Chopim, IAPAR 81, IAPAR 16, BRS Campeiro, BRS Radiante, IAPAR 80, UTF 6, SM 9906, PI 2072620, LP 01-51, PB 4, Uirapuru, IAPAR 20, Zonin, IAPAR 31, 2 V, CNPF 7762, BRS Talismã, Pérola, Lon Rosinha, and UTF 9 had similar behavior in the two methods of inoculation. Both methods of inoculation were efficient in determining the reactions of susceptibility and resistance of the genotypes but the method of inoculation with multiple needles was more precise and practical in the evaluation of the inoculated portion of the leaf.

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“…Bactericides have not been an effective alternative to control this disease (Denardin and Agostini, 2013). The use of resistant cultivars and certified seeds, adequate use of irrigation, growing in non-infested soils, and crop rotation are the most effective methods for control of CBB (Maringoni and Lauretti, 1999;Singh and Miklas, 2015;Akhavan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Research Article Genetic diversity as an additional selection criterion in a carioca common bean recurrent selection program for resistance to common bacterial blight

Melo¹,

Silva²,

Pereira³

et al. 2019

Genet. Mol. Res.

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Common beans are a key source of protein and are consumed daily by most of the Brazilian population. More than 70% of what is consumed in this country is classified as carioca beans, based on seed qualities and appearance. We evaluated progenies of carioca common beans of the Brazilian agriculture research agency (Embrapa) recurrent selection program. This recurrent selection program is based on resistance to common bean bacterial blight (CBB), seed yield, and other important agronomic traits. Selection also considers the genetic representativeness of the parents and the genetic diversity among phenotypically selected progenies. Initially, 60 superior progenies were selected based on resistance to CBB and on seed type, in two locations (Santo Antônio de Goiás, GO and Ponta Grossa, PR). These progenies were evaluated in the C 0 S 0:2 generation in field trials in six locations during the rainy growing season. A randomized block experimental design was used with two replications, in plots of two 3-m rows spaced at 0.5 m. The most promising C 0 S 0:3 progenies for combined agronomic performance in the different environments were selected and were then evaluated by means of 24 microsatellite molecular markers for the purpose of determining the ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 18 (4): gmr18368 L.C. Melo et al. 2 genetic representativeness of their parents and the genetic diversity among them. The phenotypic data was subjected to analysis of variance for each trait in each of the environments, and then joint analyses were performed. To estimate genetic diversity among the progenies, the Rogers-W genetic distance was used, and a dissimilarity matrix was used to construct a dendrogram of genetic distances through the UPGMA method. Among the 60 C 0 S 0:2 progenies that were evaluated, those that stood out for resistance to CBB also stood out for seed yield and for resistance to other diseases. Various progenies were superior, exhibiting large genetic distances between each other and in relation to the parents. This indicates a possibility of direct and indirect gains from the recurrent selection program. This molecular information will help direct selection of individuals for future recombination cycles.

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Reação de genótipos de feijoeiro comum a Fusarium oxysporum f. sp. phaseoli, Macrophomina phaseolina e Xanthomonas campestris pv. phaseoli

Cited by 10 publications

References 6 publications

Incidence of base rot and wilt, sanitary severity and influence about seed pathology by cultivars of common bean (Phaseolus vulgaris)

Incidence of base rot and wilt, sanitary severity and influence about seed pathology by cultivars of common bean (Phaseolus vulgaris)

Reação de genótipos de feijão ao crestamento bacteriano comum, avaliado por dois métodos de inoculação

Research Article Genetic diversity as an additional selection criterion in a carioca common bean recurrent selection program for resistance to common bacterial blight

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