Cultivars Evaluation Coffea arabica to the Parasitism of Meloidogyne

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					       Cultivars Evaluation Coffea arabica to the Parasitism of
                         Meloidogyne exigua

                      A.L.A. GARCIA1*, V.P. CAMPOS2, L. PADILHA3
               1
                   Fundação Procafé, Varginha, MG. *Email: garcialmg@gmail.com
                                     2
                                       DFP/UFLA, Lavras, MG
                                          3
                                            Embrapa Café


SUMMARY

Nematodes may cause damages in Brazilians coffee plantations, depending on the species and
the type of soil. The Meloidogyne exigua is spread in the coffee regions, especially in older
farmings in South of Minas Gerais. Coffe trees in the areas with nematodes have showed
reduction in their development and production. It gets worse when the plants are under stress
conditions. The use of resistant cultivar is the best way to control the nematode. The aim of
this work was to evaluate the behavior of Coffea arabica cultivars when inoculated with M.
exigua to identify resistance sources. The tests were carried out at Nematology lab in the
UFLA, Lavras, MG, in greenhouse, with randomized block design, four replications and plot
with three plants. The reaction of 22 coffee cultivars were evaluated with reference to the M.
exigua using Acaiá IAC 474/19 and IAPAR 59 as resistant and susceptible controls. Coffee
plant was inoculated with 5000 eggs of M. exigua, 80 days after transplanting. The number of
galls/gr root were counted at 40 and 120 days after inoculation. To IAPAR 59 cultivar were
confirmed to be immune, since no galls was observed in their roots. Catucaí Vermelho 785/15
and Acauã cultivars had segregation behavior with some resistant plants and others of reduced
susceptibility. Catucaí Vermelho 36/6, Siriema, Soledade, Bem-te-vi Amarelo, Catucaí
Vermelho 20/15- cv 395, Catucaí Amarelo 3-5, Franca Cultivar, Catucaí Vermelho 36/6- cv
470, Catucaí Amarelo 24/137, Sabiá Tardio, Catucaí Amarelo 2SL- cv 446, Catucaí Amarelo
3 SM, Catucaí Amarelo 20/15- 479, Icatu IAC 2944, IBC-Palma II, Canário, Catucaí Açu
Vermelho, IBC-Palma I e Acaiá-IAC 474/19, were considered susceptible.