Suscetibilidade da mamoreira anã a nematóide
Occurrence of the root-knot nematode on castor bean in São Paulo
Fausto Joaquim Coral; Nicolau V. Banzatto; Luiz Gonzaga E. Lordello
SUMMARY
Castor bean plants of the variety IA-38 (the most planted in the state of São Paula) were found to be heavily attacked by the root-knot nematode, Meloidogyne incognita. This seems to be the first record ot the occurrence of a gall-forming nematode on this host plant in Brazil.
The affected castor bean plants were stunted, show ed leaf drop, and presented symptoms similar to those of nitrogen deficiency. The yield was also reduced. The plant roots had small to medium sized galls, as well as cortical cracks. The main root had a peculiar rough aspect.
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Recebido para publicação em 13 de novembro de 1961.
Datas de Publicação
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Publicação nesta coleção
09 Mar 2010 -
Data do Fascículo
1961
