Biblioteca do Café
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1
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Resultados da Pesquisa
Item IAC Herculândia - a Coffea canephora rootstock multiresistant to Meloidogyne species(Crop Breeding and Applied Biotechnology, 2023-08-20) Guerreiro Filho, Oliveiro; Fazuoli, Luiz Carlos; Braghini, Masako Toma; Gallo, Paulo Boller; Oliveira, Claúdio Marcelo Gonçalves; Padilha, Lilian; Fatobene, Barbhara Joana dos Reis; Andrade, Vinicius Teixeira; Vasconcelos, Larissa de Brito Caixeta; Rosa, Juliana Magrinelli OsórioIAC Herculândia is a Coffea canephora cultivar multiresistant to Meloidogyne exigua, M. incognita, and M. paranaensis to be used as a rootstock for Coffea arabica cultivars. It is a synthetic cultivar resulting from recombination among the clonal cultivars IAC WG, IAC FEBS, IAC PM, IAC LCCBF, and IAC ARM.Item IAC Herculândia – a Coffea canephora rootstock multiresistant to Meloidogyne species(Crop Breeding and Applied Biotechnology, 2023-08-20) Guerreiro Filho, Oliveiro; Fazuoli, Luiz Carlos; Braghini, Masako Toma; Gallo, Paulo Boller; Oliveira, Claúdio Marcelo Gonçalves; Padilha, Lilian; Fatobene, Bárbhara Joana dos Reis; Andrade, Vinicius Teixeira; Vasconcelos, Larissa de Brito Caixeta; Rosa, Juliana Magrinelli OsórioIAC Herculândia is a Coffea canephora cultivar multiresistant to Meloidogyne exigua, M. incognita, and M. paranaensis to be used as a rootstock for Coffea arabica cultivars. It is a synthetic cultivar resulting from recombination among the clonal cultivars IAC WG, IAC FEBS, IAC PM, IAC LCCBF, and IAC ARM.Item Coffea arabica clones resistant to coffee leaf miner(Crop Breeding and Applied Biotechnology, 2016-03) Guerreiro Filho, Oliveiro; Mendonça, Alex Paulo; Nonato, Juliana Vieira Almeida; Andrade, Vinícius Teixeira; Fatobene, Bárbhara Joana dos Reis; Braghini, Masako Toma; Prela-Pantano, AngelicaBrazilian arabica coffee production is based on a set of highly productive cultivars sexually propagated. All of them are susceptible to coffee leaf miner, Leucoptera coffeella, and most of them are also susceptible to coffee leaf rust, Hemileia vastatrix. Aiming to reduce the selection process of cultivars with multiple resistances to both biotic constraints, the Coffea arabica clones 760, 1059, 1064 and 1215 were evaluated under field conditions. The mean yield of four C. arabica clones was not statistically different from the experimental controls; however, the yield of clone 1059 was 21% higher than the control cultivar Obatã IAC 1669-20. Leaf miner resistance level in all the evaluated clones remained the same as the mother plant’s. However, the same did not occur for resistance to H. vastatrix, due to the emergence of new pathogen races. In summary, it is potentially feasible the adoption of clone 1059 as a new clonal cultivar resistant to coffee leaf miner.Item Multiple resistance to bacterial halo blight and bacterial leaf spot in Coffea spp.(Instituto Biológico, 2019) Rodrigues, Lucas Mateus Rivero; Destéfano, Suzete Aparecida Lanza; Almeida, Irene Maria Gatti de; Beriam, Luís Otávio Saggion; Braghini, Masako Toma; Guerreiro Filho, OliveiroBreeding for genetic resistance is an important method of crop disease management, due to the numerous benefits and low cost of establishment. In this study, progenies of 11 Coffea species and 16 wild C. arabica accessions were tested for their response to Pseudomonas syringae pv. garcae, the causal agent of bacterial halo blight, a widespread disease in the main coffee-producing regions of Brazil and considered a limiting factor for cultivation in pathogen-favorable areas; and also to P. syringae pv. tabaci, causal agent of bacterial leaf spot, a highly aggressive disease recently detected in Brazil. Separate experiments for each disease were carried out in a greenhouse, with artificial pathogen inoculations and ideal moisture conditions for disease development. The results showed that C. canephora, C. congensis, C. eugenioides, C. stenophylla, and C. salvatrix progenies, the wild C. arabica accessions Dilla & Alghe and Palido Viridis, and cultivar IPR 102 contain satisfactory levels of simultaneous resistance against bacterial halo blight and bacterial leaf spot. These results are useful in breeding programs for durable resistance to multiple biotic agents, providing new combinations of resistance alleles by hybridization, as well as for phytopathological studies, to identify infraspecific variability of the pathogens.Item IAC Catuaí SH3 - a dwarf Arabica coffee cultivar with leaf rust resistance and drought tolerance(Crop Breeding and Applied Biotechnology, 2019) Fazuoli, Luiz Carlos; Braghini, Masako Toma; Silvarolla, Maria Bernadete; Gonçalves, Wallace; Mistro, Júlio César; Gallo, Paulo Boller; Guerreiro Filho, OliveiroThe cultivar IAC Catuaí SH3 was developed by the pedigree method, from the recombination of the coffee tree H 2077-2-5-46, of the Catuaí Vermelho germplasm, with accession IAC 1110-8, from the exotic cultivar BA10. Cultivar IAC Catuaí SH3 is high-yielding, resistant to coffee leaf rust and tolerant to drought.Item Ethiopian coffee germplasm is a valuable resistance gene pool to brazilian Pseudomonas syringae PVS garcae and tabaci(Editora UFLA, 2021) Rodrigues, Lucas Mateus Rivero; Destéfano, Suzete Aparecida Lanza; Beriam, Luís Otávio Saggion; Ferreiro-Tonin, Mariana; Braghini, Masako Toma; Guerreiro Filho, OliveiroSeven wild accessions of Coffea arabica from Ethiopia prospected by FAO Coffee Mission 1964-1965 were investigated concerning the resistance to 18 Brazilian strains and two Kenyan strains of Pseudomonas syringae pv. garcae and four P. syringae pv. tabaci strains, causal agents of bacterial halo blight and bacterial leaf spot, respectively. The cultivars of C. arabica IPR 102, resistant to the diseases, and Mundo Novo IAC 376-4, susceptible, were used as experimental controls. Our results indicated that the Ethiopian accessions presented high levels of resistance to all Brazilian strains of P. syringae pv. garcae but were susceptible to infection caused by Kenyan strains, which causes different levels of severity in wild accessions and experimental controls. Ethiopian accessions were also considered resistant to the four P. syringae pv. tabaci strains, with low susceptibility observed, one point on the severity scale, in access E-268 in response to a strain of the bacterium.Item Variabilidade na concentração de dois compostos bioativos em grãos crus de café robusta(Embrapa Café, 2019-10) Lima, Valeria Bittencourt de; Salva, Terezinha de Jesus Garcia; Barboza, Franciane Rueda; Braghini, Masako TomaO maior consumo de café se dá como torrado e moído para emprego em preparo de bebidas. Na última década, entre outras variadas aplicações, ele tem sido apresentado também como ingrediente de diversas formulações de alimentos funcionais, pelo seu potencial de atividade bioativa calcada principalmente no seu conteúdo de ácidos clorogênicos e cafeína. Esse trabalho faz parte do estudo sobre a avaliação da diversidade de cafeeiros da espécie Coffea canephora do Banco de Germoplasma e em seleção no Instituto Agronômico de Campinas, e trata da análise da composição química do grão cru de café com respeito ao teor de ácido 5-cafeoilquínico (5-CGA) e cafeína. Os resultados da pesquisa revelaram que as concentrações dos dois compostos estão sujeitas a forte influência do ambiente, e que nas 20 progênies analisadas a diferença entre a maior e a menor concentração de 5-CGA foi de 28,3%, enquanto para a cafeína a diferença foi de 42,1%.Item IAC Obatã 4739 – dwarf arabic coffee cultivar with yellow fruits and resistant to leaf rust(Crop Breeding and Applied Biotechnology, 2018-07) Fazuoli, Luiz Carlos; Braghini, Masako Toma; Silvarolla, Maria Bernadete; Gonçalves, Wallace; Mistro, Júlio César; Gallo, Paulo Boller; Guerreiro Filho, OliveiroCultivar IAC Obatã 4739 was derived from a cross between coffee tree IAC 1669-20-1 and cultivar Catuaí Amarelo IAC 62. It is short and high-yielding, rust-resistant, has large and yellow fruits, medium to late maturation, excellent cup quality, and responds effectively to irrigation.Item IAC 125 RN – A dwarf coffee cultivar resistant to leaf rust and root-knot nematode(Crop Breeding and Applied Biotechnology, 2018-03) Fazuoli, Luiz Carlos; Braghini, Masako Toma; Braghini, Masako Toma; Silvarolla, Maria Bernadete; Gonçalves, Wallace; Mistro, Júlio César; Gallo, Paulo Boller; Guerreiro Filho, OliveiroIAC 125 RN was derived from a cross between the coffee cultivar Villa Sarchí and the Hibrido de Timor CIFC 832/2. The coffee trees are short and re- sistant to races 1 and 2 of the nematode Meloidogyne exigua and to all races of coffee rust, Hemileia vastatrix, present in Brazil. Brazil.Item Natural infection of several coffea species and hybrids and Psilanthus ebracteolatus by the coffee ringspot virus (CoRSV)(Escola Superior de Agricultura "Luiz de Queiroz", 2011-07) Kitajima, Elliot Watanabe; Chagas, César Martins; Braghini, Masako Toma; Fazuoli, Luiz Carlos; Fabris, Eliane Cristina Locali-; Salaroli, Renato BarbosaCoffee ringspot is a minor coffee disease caused by the nuclear type of Brevipalpus mite-transmitted virus, Coffee ringspot virus (CoRSV). Recently outbreaks of the disease in some growing regions of the state of Minas Gerais, Brazil, were registered with qualitative and quantitative yield losses. Coffea arabica was the only species registered as natural host. A survey was made on a germplasm collection of Coffea and related species kept at the Centro de Café “Alcides Carvalho”, Instituto Agronômico, Campinas, state of São Paulo (SP), Brazil, to assess natural susceptibility of Coffee species, other than C. arabica and some interspecific hybrids of Coffea as well as other non-Coffea plant species to the Coffee ringspot virus (CoRSV). The following plants were found with ringspot symptoms on their leaves and/or fruits besides C. arabica L.: C. kapakata (IAC 4511), C. dewevrei cv. Excelsa, C. canephora cv. Robusta, hybrid derivative of the C. arabica × C. racemosa (IAC1195-5-6-2), C. arabica × C. dewerei (Piatã IAC 387), Híbrido de Timor CIFC 832/1 (derivative from a natural crossing between C. arabica × C. canephora) and C. racemosa. Also Psilanthus ebracteolatus, a species close to the genus Coffee was also found with ringspot lesions on their leaves. All these plants were also found infested by Brevipalpus mites identified as B. phoenicis. Infection of these plants by CoRSV was confirmed by the observation of characteristic cytopathic effects in the tissues of the lesion and by RT-PCR using a pair of primer specific for CoRSV. Only with C. racemosa RT-PCR failed to amplify the CoRSV genome. The susceptibility of P. ebracteolatus to CoRSV adds new dimension regarding its controversial taxonomic position.