Mr.Wael Mostafa Aref, postgraduate student at the Agronomy. Department, will hold a seminar on “Determination of critical period of sesame weed competition (sesamum indcium L.) and its control” under supervision of 1- Prof. Hussein Mohamed Abd-Elrahem 2- Prof. Enaam Helmi Galal 3- Dr. Adel Ahmed Omran on 10:00 o’clock, Tuseday, 26/6/2012 at the seminar hall