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31. (In Persian with English abstract). ##Zeinali, H. 1997. Study of growth indices and their relationship with yield in grain maize under different plant densities and planting dates. MSc Thesis. College of Agriculture, University of Tehran. 110 PP. (In Persian with English abstract). ##Vantine, M. and S. Verlinden. 2003. Growing Organic Vegetable Transplants. West Verginia University. USA.##Wicklow, D. T. 1991. Epidemiology of Aspergillus flavus in Corn. In: Aflatoxin in Corn: New Perspectives (Ed.) Shotwell, O. L. and Hurburg, C. R. Jr. pp. 315–328. Research Bulletin 599. Ames, Iowa: Iowa Agriculture and Home Economics Experiment Station. USA.##