Pathogenicity of Fusarium spp. associated with diseases of Aleppo-pine seedlings in Algerian forest nurseries

F. Lazreg, L. Belabid, J. Sanchez, E. Gallego and B. Bayaa
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F. Lazreg: Department Agronomy, Laboratory of Research on Biological Systems and Geomatics (L.R.S.B.G), University of Mascara, Mascara, Algeria
L. Belabid: Department Agronomy, Laboratory of Research on Biological Systems and Geomatics (L.R.S.B.G), University of Mascara, Mascara, Algeria
J. Sanchez: Department of Biology and Geology, University of Almeria, Almeria, Spain
E. Gallego: Andalusian Centre for the Assessment and Monitoring of Global Change (CAESCG), University of Almeria, Almeria, Spain
B. Bayaa: Faculty of Agriculture, University of Aleppo, Aleppo, Syria

Journal of Forest Science, 2014, vol. 60, issue 3, 115-120

Abstract: In northwestern Algeria, the production of Aleppo pine (Pinus halepensis Mill.) seedlings in four nurseries is hindered by the damping-off disease. Results obtained indicated that Fusarium spp. are commonly found on diseased seedlings, in most containers and bare-root nurseries. Twenty-one isolates of Fusarium, belonging to seven species, were previously isolated from diseased seedlings, and identified based on their morphological and molecular characteristics and their sequences had been deposited in NCBI-Genbank. These isolates were tested for their pathogenicity to local Aleppo pine seeds. The highest inhibition was observed with F. redolens and F. solani, with 75 and 69.3%, respectively. The root growth inhibition of the Aleppo pine seedlings was significantly different for each isolate. The influence of various isolates of Fusarium spp. on seed germination, shoot and root length and vigour index was significantly different. The disease incidence caused by F. redolens and F. solani was 91 and 90%, respectively.

Keywords: Pinus halepensis; Fusarium redolens; Fusarium solani; damping-off (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:60:y:2014:i:3:id:65-2013-jfs

DOI: 10.17221/65/2013-JFS

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