Helvacioglu, I. AtilganSehirali, S.2024-10-292024-10-2920111302-70502146-5894https://hdl.handle.net/20.500.11776/14949The research was conducted in experiment fields of Field Crop Department of Tekirdag Agricultural Faculty at Trakya University in growing seasons of 2001-2002 and 2002-2003 based on random block of experiment desing with four replications. Two durum wheat cultivars (Aydin 93 and Epidur) were used as the material in this research. The main stem length, tiller numbers, apex developments and the number of circles on apex were measured as physical properties. In the physical properties the difference of bread wheat varieties on main stem development, tiller numbers, apex developments and the number of circles on apex were significant. Achived data evince that earlyriser and mid-riser wheat varieties which complete apex growing more faster, are more convenient for Trakya Region. However, it is determined that wheat varieties which completes apex growing more later, are not convenient for this region. In apex growing the exess number of circles on apex shows that spikelet numbers will be more.trinfo:eu-repo/semantics/closedAccessDurum wheatapex developmentsthe number of circles on apexArticle812132N/AWOS:000453150700003