Fitopatologia Brasileira (2005) 30, 413-415
Sônia M. Lima Salgado, Mário Lúcio V. Resende and Vicente P. Campos (2005)
Reprodução de Meloidogyne exigua em cultivares de cafeeiros resistentes e suscetíveis
[Reproduction of Meloidogyne exigua on resistant and susceptible coffee cultivars]
Fitopatologia Brasileira 30 (4), 413-415
Abstract: The resistance of the Iapar-59 coffee (Coffea arabica) cultivar to Meloidogyne exigua was compared with cv. IAC-Apoatã, used as a resistance standard, and with susceptible cultivars Mundo Novo (IAC 379-19), Catuaí (IAC 62) and Tupi (IAC 1669-33). One-year old plants were inoculated with 10,000 of M. exigua eggs and 93 days after inoculation, the reproduction of M. exigua was evaluated by determining the number of galls (NG), the number of eggs (NO), the reproduction factor (RF), reduction in the reproduction factor (RFR) and behaviour of the coffee plant. A lower degree of M. exigua reproduction was equally observed in 'Iapar-59' and 'Apoatã', in which NG, NO and the FR were lower then those observed in 'Mundo Novo', 'Catuaí' and 'Tupi'. Greater reduction in the reproduction factor (RFR) of M. exigua observed in 'Apoatã' and 'Iapar-59' indicaties a resistance reaction of 'Iapar-59'.
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(original language: Portuguese)
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Database assignments for author(s): Mário L.V. Resende
Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
Pest and/or beneficial records:
Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
---|---|---|---|---|
Meloidogyne exigua | Coffee (Coffea) |