Epidemiological analysis and influence of basal canker caused by Chrysoporthe cubensis in accumulation of biomass, carbon sequestration and energy flow in Eucalptus sp. forests

• Grant number: 11/18529-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: January 01, 2012
• End date: August 31, 2014
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering
• Principal Investigator: EDSON LUIZ FURTADO
• Grantee: Karina Goulart Tumura
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

The culture of eucalyptus is one of the most important in Brazil, becoming a source of renewable energy and wood, supporting important agro-industrial processes for production of pulp, paper and essences. The eucalyptus as another plant species is infected by various pathogens, especially fungi, from stecklings to adult plants. In this work, will be studied the causal agent of basal canker, Chrysoporthe cubensis. This disease has a wide geographical distribution, occurring from the south of São Paulo State to the Amazon and its damages can be observed in sensitive regions of low altitude of Espírito Santo, Rio Doce Valley in Minas Gerais and Recôncavo Baiano. Symptoms are quite varied and can attack plant from five months until the end of the rotation. Young plants, because of their reduced diameter, can be ringed at its base by canker, being put to death. The attack in older plants results in injury with little or abundant cracking up typical cankers that can be found at various heights of the trunk. Studies of forest biomass are made with different objectives, including to check the phytosanitary status of an ecosystem because it is the result of the action of biotic and abiotic factors. There are few studies about the influence of diseases for biomass accumulation, carbon sequestration and energy flow in Eucalyptus forests. To proceed this study was chosen the area of EUCFLUX project, which has the technology called Torre de Fluxo (Eddy Flux Tower Covariance Method) needed to measure these parameters . The objectives of this study are: a) Verify the susceptibility to canker of the clones used in the experimental plots of EUCFLUX; b) Check incidence/severity of the disease in field; c) Study the spatial distribution of diseased plants; d) Assess the influence of canker in the life time of attacked plants and; e) Assess the influence of attacked plants by canker in the accumulation of biomass, carbon fixation and energy flow of the forest. After obtaining data, all necessary statistical analysis will be done.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TUMURA, Karina Goulart. Space-time dynamics, damage and losses quantification and canker influence (chrysoporthe cubensis) in biomass acumulation, carbon fixation in six eucalyptus' genotypes. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agronômicas. Botucatu Botucatu.