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    Abstract
2010 (Vol. 2, Issue: 3)
Article Information:

Effect of Klebsiella Spp. and Different Ethylene Inhibitors on Striga hermonthica Benth. (Del.) Seeds Germination

M.M. Hassan, M.E. Abdelgani, A.E. Babiker and M.G. Osman
Corresponding Author:  M.M. Hassan 

Key words:  Biological control, ethylene biosynthesis, Striga hermonthica, , , ,
Vol. 2 , (3): Page No: 94-98
Submitted Accepted Published
2010 April, 09 2010 April, 22 2010 July, 05
Abstract:

The aim 0f this study was undertaken to evaluate the effect of the bacteria strain ( Klebsiella spp.), silver nitrate, cobalt chloride and ACC in germination of Striga seeds. Striga seeds required after- ripening, pretreatment (conditioning) in moist warm environment for 2-14 days and subsequently exposure to an exogenous stimulant. In the present study, an inhibitor of ethylene biosynthesis, AgNO 3 and CoCl 2, was found to inhibit germination. Germination was found to be inhibited by higher concentrations of AgNO 3 and CoCl 2. Combination of ACC with AgNO 3 and CoCl 2 increased Striga seeds suppression as compared with control. Also this study investigates the effect of microorganism in Striga germination. Klebsiella spp. strains known to produce large amounts of ethylene w ere tested for efficacy in germinating seeds of Striga hermonthica (Del.) Benth. Incubation of conditioned S. hermonthica seeds over a medium inoculated with a Klebsiella sp. resulted in considerable germination (34-49%) this indicates an involvement of a volatile substance. Unconditioned S. hermonthica seeds were not stimulated.
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  Cite this Reference:
M.M. Hassan, M.E. Abdelgani, A.E. Babiker and M.G. Osman, 2010. Effect of Klebsiella Spp. and Different Ethylene Inhibitors on Striga hermonthica Benth. (Del.) Seeds Germination.  Asian Journal of Agricultural Sciences, 2(3): Page No: 94-98.
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