Effect of some plant extracts and sodium azide on wheat crop protection from the infection  by Rhizoctonia solani

	Effect of some plant extracts and sodium azide on wheat crop protection from the infection by Rhizoctonia solani
journal of kerbala university
Article 1, Volume 4, Issue 1, 2008, Pages 57-68 PDF (0 K)
Abstract
This study was carried out to investigate the effect of water extracts of Cuminum cyminum L. , Hibiscus sabdariffa L., Datura metel Linn and Datura innoxia Mill on radial growth of R. solani with protection of seed wheat from infection and effect of sodium azide on emergence and seedling growth of wheat during winter season 2007-2008.The results showed that water extracts of Hibiscus Sabdariffa L. at concentration 25% was the most effective in inhibiting of the radial growth 100% of the R.solani .The highest percentage of emergence were from soil polluted with R.solani and seeds soaked in D. innoxia Mill extract and irrigated with Cuminum cyminum L. and each of two extract (50 and 75 %) and which were yield 100 % percentage of seed emergence .While Hibiscus sahdariffa L. water extract 20% in inoculated soil was the highest in percentage of seed emergence and wet wight of seedling (100% and 0.17 gm)respectively . soaked of seed in sodium azide 3mM and planted in soil inoculated by R.solans were the high parentage of seed emergence (85.80) % the period of socked seed (24) hours with concentration of sodium azide in soil inoculated by R.solani and concentration of sodium azide 1.5mM with period (24) hours in sterilized soil were the high in wet Wight (0.18) gm and this don't different significantly about socked in sodium azide 1.5 mM with (24)hours and planting in soil inoculated which gave (0.17)gm.

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