The Role of Aspergillus niger in the prgteet of fungi Isolated from Tomato plant and Rhizoctonia solani cause seed decay and damping  off Tomato seedlings (Lycopersici esculamtum (Mill)

	The Role of Aspergillus niger in the prgteet of fungi Isolated from Tomato plant and Rhizoctonia solani cause seed decay and damping off Tomato seedlings (Lycopersici esculamtum (Mill)
Magazine of Al-Kufa University for Biology
Article 1, Volume 2, Issue 1, 2010, Pages 53-61
Abstract
The experiment was condueted in plant disease lab-at college of Agriculture / university of kufa on march , 22th . 2009 in order to study the effect of Aspergillus miger on contol of fungi which are isolated from tomato plant and Rhizoctonia solani the results showed that it was isolated 8 isolates of fungi accompanied with tomato plants . The highest frequency of fungi was penicillium which is 20.75% , where 95 the least frequency was Rhizopus which was 5.55 % . This expertment indicated that fusarium oxysporum and Rhizoctonia solani were the most virulent to 54.66 and 52% respectively as compared with the control which wsa 82.66 % , and also effected on the others growth Rarameters for example seedlings damp-off preemergence and post emergence the filtering extract of A.niger in habited the gronth og both fungi in the cultural medium which were 5.8 and 7.2 cm respectively as companed with the control which were 7.8 and 8.7 cm respectively the filtering extract of A.niger increased the germination percentage of tomato seeds which were 82.18 nd 79.31% respectively as compared with the contral of 64.33 and 62.17% respectivelyg and also decreased the seesa decay and seedling damp-off as compared with the control.

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