Preliminary study on temperatures for the development of Valsa ceratosperma
Keywords:
Eucalyptus, Fungus, GrowthAbstract
The growth of Valsa ceratosperma (Tode:Fr.) Maire was analyzed under axenic conditions at several temperatures. An isolate obtained from cankers on trunks of Eucalyptus grandis was inoculated on Petri dishes with PDA medium with plugs of mycelium-agar and incubated under temperatures of 10, 15, 20, 25, 30, 35 and 40 ºC. The growth was evaluated based on linear growth rate of colony (mm/day). The development of V. ceratosperma occurred in the 15 to 35 °C range and the higher rate was verified at 30 °C.
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AUER, C. G. Cancros em Eucalyptus grandis: relação entre incidência e qualidade de sitio, taxonomia da espécie de Valsa associada e sua patogenicidade comparada com Cryphonectria cubensis. 1991. 93 f. Tese (Doutorado em Agronomia) - Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba.
FERREIRA, F. A. Patologia florestal: principais doenças florestais no Brasil. Viçosa: Sociedade de Investigações Florestais, 1989. 570 p.
HODGES, C. S.; REIS, M. S.; FERREIRA, F. A.; HENFLING, J. D. M. O cancro do eucalipto causado por Diaporthe cubensis. Fitopatologia Brasileira, Brasília, v. 1, n. 3, p. 129-169, 1976.
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