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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
25/09/2020 |
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Data da última atualização: |
25/09/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ZAMBOLIM, L.; SOUZA NETO, P. N. de; ZAMBOLIM, E. M.; CAIXETA, E. T.; SAKIYAMA, N. S.; FERRÃO, R. G. |
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Afiliação: |
LAÉRCIO ZAMBOLIM, UNIVERSIDADE FEDERAL DE VIÇOSA; PEDRO NERY DE SOUZA NETO, UNIVERSIDADE FEDERAL DE VIÇOSA; EUNIZE MACIEL ZAMBOLIM, UNIVERSIDADE FEDERAL DE VIÇOSA; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; NEY SUSSUMO SAKIYAMA, UNIVERSIDADE FEDERAL DE VIÇOSA; ROMÁRIO GAVA FERRÃO, INSTITUTO CAPIXABA DE PESQUISA E EXTENSÃO RURAL. |
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Título: |
Components of resistance of conilon coffee that reduce the rate of leaf rust development. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Australasian Plant Pathology, v. 45, n. 4, p. 389-400, 2016. |
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DOI: |
10.1007/s13313-016-0425-4 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to quantify the levels of resistance of 39 hybrids BClone 83 × Clone 02^of Coffea canephora var. conilon to the races II (v5) and XXXIII (v5,7,9) of H. vastatrix. To study the resistance of the genotypes, leaf discs were removed from the plants and spreaded on the top of a stainless steel screen inside gerbox as a moist chamber. The gerboxes were mantained at 22 ± 2 °C in the dark for 48 h and under 12 h of photoperiod, respectively. The hybrids were classified into four levels: resistant (R), moderately resistant (MR), moderately susceptible (MS) and susceptible (S). Leaf discs (%) containing sporulated lesions was the resistance component that had the greatest absolute correlation (0.95). The level of resistance of the hybrids varyied according to the race of the pathogen. The percentage of R, MR, MS and S of the hybrids to race II and XXXIII were 25 %, 25 %, 38 %, and 11 %, and 13 %, 37 %, 42 %, and 8 %, respectively. Nine (25 %) and five (13 %) hybrids were R to race II and XXXIII, respectively. Four hybrids (21, 30, 48 and 66) showed vertical resistance to races II and XXXIII. Possibly these hybrids have the resistance factor SH6, because they were resistant to race XXXIII v5,7,9. Leaf discs (%) with sporulating lesions can be used as a reference in future studyies of screening genotypes with horizontal resistance to C. canephora genotypes to leaf rust. |
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Palavras-Chave: |
Physiological races. |
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Thesagro: |
Hemileia Vastatrix. |
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Thesaurus NAL: |
Coffea arabica var. arabica; Horizontal resistance. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02158naa a2200241 a 4500
001 2125136
005 2020-09-25
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s13313-016-0425-4$2DOI
100 1 $aZAMBOLIM, L.
245 $aComponents of resistance of conilon coffee that reduce the rate of leaf rust development.$h[electronic resource]
260 $c2016
520 $aThis study aimed to quantify the levels of resistance of 39 hybrids BClone 83 × Clone 02^of Coffea canephora var. conilon to the races II (v5) and XXXIII (v5,7,9) of H. vastatrix. To study the resistance of the genotypes, leaf discs were removed from the plants and spreaded on the top of a stainless steel screen inside gerbox as a moist chamber. The gerboxes were mantained at 22 ± 2 °C in the dark for 48 h and under 12 h of photoperiod, respectively. The hybrids were classified into four levels: resistant (R), moderately resistant (MR), moderately susceptible (MS) and susceptible (S). Leaf discs (%) containing sporulated lesions was the resistance component that had the greatest absolute correlation (0.95). The level of resistance of the hybrids varyied according to the race of the pathogen. The percentage of R, MR, MS and S of the hybrids to race II and XXXIII were 25 %, 25 %, 38 %, and 11 %, and 13 %, 37 %, 42 %, and 8 %, respectively. Nine (25 %) and five (13 %) hybrids were R to race II and XXXIII, respectively. Four hybrids (21, 30, 48 and 66) showed vertical resistance to races II and XXXIII. Possibly these hybrids have the resistance factor SH6, because they were resistant to race XXXIII v5,7,9. Leaf discs (%) with sporulating lesions can be used as a reference in future studyies of screening genotypes with horizontal resistance to C. canephora genotypes to leaf rust.
650 $aCoffea arabica var. arabica
650 $aHorizontal resistance
650 $aHemileia Vastatrix
653 $aPhysiological races
700 1 $aSOUZA NETO, P. N. de
700 1 $aZAMBOLIM, E. M.
700 1 $aCAIXETA, E. T.
700 1 $aSAKIYAMA, N. S.
700 1 $aFERRÃO, R. G.
773 $tAustralasian Plant Pathology$gv. 45, n. 4, p. 389-400, 2016.
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