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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 2, No. 2, 2005-2006, pp. 129-132
Bioline Code: st05017
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 2, No. 2, 2005-2006, pp. 129-132

 en Comparative efficacy of brown, green and red seaweeds in the control of root infecting fungi and okra
V. Sultana, S. Ehteshamul-Haque, J. Ara and M. Athar

Abstract

The effect of soil amendment by brown, green and red seaweeds was studied in controlling the root rot infecting fungi of okra seedlings in the greenhouse. The soil amendment with seaweeds Stokeyia indica check for this species in other resources , Padina pavonia check for this species in other resources (brown), Solieria robusta check for this species in other resources (red), at 1% w/w reduced Macrophomina phaseolina check for this species in other resources , Rhizoctonia solani check for this species in other resources and Fusarium solani check for this species in other resources infection on okra roots. Codium iyengarii check for this species in other resources (green) at 0.5 % w/w was effective against F. solani, while at 1% w/w was found phytotoxic. S.robusta showed better control of F. solani infection when used with Pseudomonas aeruginosa check for this species in other resources than either used alone. S. robusta produced better plant height and fresh weight of shoot than P. aeruginosa. Results of the present study suggest that the use of brown seaweeds S. indica and P. pavonia alone and S. robusta alone or in combination with P. aeruginosa have great potential to control root-infecting fungi of okra with enhancement of plant growth. These seaweeds alone or in combination with P. aeruginosa may be utilized as biological control of root infecting fungi of okra.

Keywords
Seaweeds, Pseudomonas aeruginosa, root infecting fungi, okra, biocontrol

 
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