COMPARTIVE STUDY OF SOME DURUM WHEAT VARIETIES ANDTHE EFFECT OF NITROGEN AND PHOSPHOROUS FERTLIZATION ON YIELD AND YIELD COMPONENTS UNDRE

Abstract

This study was conducted in field crops station /Ninavh Al - Rashidia for the season 2001-2002 in order to finding out suitable varieties of some durum wheat (Om-Raby , Waha , Bagra-jow and local variety with fertilized (60kg/h ) of compund fertilizer (27:27:0) NPK, Result indicated superiority of fertilizer treatment in plant hight, No of spikes /m2 , seed index and the yield of grain and straw. Om-Raby variety gave the same effect significant for the same characters. The superiority of Spikes/m2 resulted from the interaction of fertilizer treatment with all varieties where as highest grain yield and harvest index gaind from interaction of fertilizer treatment with Om-Raby variety .