EVALUATION THE EFFICIENCY OF SOME Drechslera

Abd-Al-Razak,; J.K,; Juber, K.S.

	EVALUATION THE EFFICIENCY OF SOME Drechslera
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 16, Issue 6, 2011, Pages 0-0
Authors
; ; K.S. Juber
Abstract
The study has been conducted to evaluate the efficiency of five isolates that associated with cogongrass foliage and study the variation in virulence among certain fungal isolates by using gel electrophoresis technique for the total soluble protein on the polyacrylamide gel and cultural characteristic. The results of the pathogenicity tests under glass house condition (25 + 3oC) show The isolate GD11 has recorded the highest rate of cogongrass infection with 83.12% followed by the isolate GD13 with 82.81%, while the lowest rate have been caused by the isolates GD14 with 26.18%. isolates belong to Drechslera have been isolated from five location selected from three governorates (Baghdad, Babylon and Diala). The detection for variation resources between five isolates of D. state of Cochliobolus bicolar indicated the isolate were differ between each other in the nature and mean growth rate in addition to inoculum density, with the superior of the GD48 isolate in the mean number of the spores over all the other isolates.The mean number of spores in its treatment was 96.57 x 105 spore / ml, while the isolate GD13 produced clear difference between the isolates in the type and number of proteins. The two isolates GD11 and GD13 revealed 89.88% genetic similarity in addition to the protein with molecular weight 21 kd which were found in both the isolates and it was not found in the others and this may be related with high virulence of the two isolates.

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