Effect of Rhizoctonia solani fungus and its exudates on seedes germination and seedling growth of okra and its chemical and biological control.

	Effect of Rhizoctonia solani fungus and its exudates on seedes germination and seedling growth of okra and its chemical and biological control.
Kufa Journal for Agricultural Science
Article 1, Volume 2, Issue 1, 2010, Pages 75-90
Abstract
This study amied to know the effect of pathogenic fungus Rhizoctonia solani and its exudates on seeds germination and seedling growth of okra plant control and chemical and biocontrol by Trichoderma harzianum control it.the results appeared that the biocontrol agent increase the percentage of okra seeds germination in exudates T.h bioagent and was 96% while seedes that treated with exudates pathogenic fungus R.s was76% compared with comparasion treatment was 83%. the treatment soil and bentanol+seedes and T.h.exudates increased in percentage of healthy seedling, shoot weight, shoot length,root weight and root length was 93%,5.1g,5.50cm,1.73g,1.33cm respectively as compared with the control treatment which was 73%,3.96,4.23,1.13and 1.26 respectively, while increased percentage of infected seedling in treatment soil and R.s+seedes and R.s.exudates) it was 66% as compared with thecontrol treatment that was 53%.

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