Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel
Soliman, N., Mansour, M., Hilal, A., Shafie, R. (2009). Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel. EKB Journal Management System, 37(2), 45-57. doi: 10.21608/ejp.2009.235008
Nour K. Soliman; Mostafa S. Mansour; Arafa A. Hilal; Radwa M.S. Shafie. "Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel". EKB Journal Management System, 37, 2, 2009, 45-57. doi: 10.21608/ejp.2009.235008
Soliman, N., Mansour, M., Hilal, A., Shafie, R. (2009). 'Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel', EKB Journal Management System, 37(2), pp. 45-57. doi: 10.21608/ejp.2009.235008
Soliman, N., Mansour, M., Hilal, A., Shafie, R. Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel. EKB Journal Management System, 2009; 37(2): 45-57. doi: 10.21608/ejp.2009.235008

Performance of Algal Filtrates and Biocides for the Control of Sclerotinia sclerotiorum Causing Damping-off of Fennel

Egyptian Journal of Phytopathology
Article 4, Volume 37, Issue 2, December 2009, Page 45-57  XML PDF (4.04 MB)
Document Type: Original Article
DOI: 10.21608/ejp.2009.235008
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Authors
Nour K. Soliman1; Mostafa S. Mansour1; Arafa A. Hilal2; Radwa M.S. Shafie email 2
1Plant Pathology Department, Faculty of Agriculture, Cairo University, 12612 Giza, Egypt.
2Plant Pathology Research Institute, Agricultural Research Center, 12619, Giza, Egypt
Abstract
Fennel, Foeniculum vulgare Mill., is one of the umbelliferous medicinal plants and is subjected to infection by Sclerotinia sclerotiorum (Lib.) de Bary, causing economic losses in plant stand and yield in Egypt. Biological control of S. sclerotiorum using algal filtrates of Nostoc spp., Oseillatoria spp., Spirulina platensis, Chlorella spp., Anabaena oryzae, Wollea spp., Anabaena flos-aquae and N. humifusum as well as the commercial biocides namely, Rhizo-N, Plant guard, Bio-ARC and Bio-Zeid were evaluated under laboratory and greenhouse conditions. All the tested algal filtrates, except those of Anabaena oryzae and Wollea spp., have significantly reduced the mycelial growth of S. sclerotiorum. However, filtrates of Nostoc spp., Oseillatoria spp. and S. platensis completely inhibited the radial growth of the fungus and significantly decreased damping-off percentages and increased length of shoot-and root systems, plant fresh weight and number of branches/plant. All the used biocides have significantly reduced the radial growth of S. sclerotiorum. Rhizo-N gave the highest inhibition followed by Plant guard. The least inhibition of S sclerotiorum growth was recorded by Bio-ARC and Bio-Zeid. Rhizo-N decreased damping-off percentages and increased the length of shoot and root systems, plant fresh weight and number of branches/plant.
Keywords
Fennel; Foeniculum vulgare; Damping-off; Sclerotinia sclerotiorum; biological control; biocides; Algal Filtrates; Nostoc spp; Nostoc humifusum; Oseillatoria spp; Spirulina platensis; Chlorella spp; Anabaena oryzae; Wollea spp; Anabaena flos-aquae
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