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Journal of Agronomy 1 ( 2 ): 77 - 79 , 2002
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Pakistan Journal of Biological Sciences 2 ( 3 ): 767 - 771 , 1999
M. Tahir, M. Tariq, H.T. Mahmood and S. Hussain
Plant Pathology Journal 3 ( 2 ): 61 - 64 , 2004