OCCURRENCE AND PATHOGENICITY OF Meloidogyne javanica ON TEAK (Tectona grandis Linn. F.) PLANTS
2013
Anmyna Soraia de Oliveira | Rosangela Aparecida da Silva
<p><a href="http://dx.doi.org/10.5902/1980509812340">http://dx.doi.org/10.5902/1980509812340</a></p><p><a href="http://dx.doi.org/10.5902/1980509812340"></a>Teak (Tectona grandis) is originated from Asia, and was introduced in the state of Mato Grosso, Brazil, inthe decade of 1970. The analysis of roots collected from Nova Maringá, Mato Grosso state, revealed thepresence of the nematode Meloidogyne javanica,that was confirmed by morphometric perineal features offemales. The females were extracted from egg masses of teak roots and the nematode was maintained intomato plants. Because no information is available about this pathosystem, the objective of this study wasto evaluate the pathogenicity of Meloidogyne javanica on teak plants. This study showed, that in controlledconditions, teak is a susceptible host to the nematode because the reproduction factor (Pf =final populationof nematodes/ Pi) varied from 2.6 to 27. Moreover, the nematode is a teak plant pathogen, because theplants exhibited pronounced symptoms of nutrients deficiency.</p>
显示更多 [+] 显示较少 [-]