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Abstract

The effects of date of planting on backing qualities, yield and proteingcontent of winter wheat, variety Omid was studied.
A completely randomized block with three replications was used in this experiment . Dates of planting consisted of 5 treatments, starting 20th of Mehr and progressively 10-days apart. The experiment was conducted for two years, at the experimental farm of College of Agriculture of Tehran University , at Karaj.
The results show that the best date of planting with respects to yield and baking qualities was late Mehr(2nd treatment). Late planting ( late Aban) resulted in low yield and poor backing qualities .
The statistical analysis shows that the highest protein contents were obtained from late planting,Aban 10th and 2Oth.Dates prior to Aban 10th and after Aban 20th resulted in low protein content