Анотация: The objectives of the study were to determine the contribution of stem reserves to grain filling in a triticale cultivar and lines under drought stress conditions created at post-anthesis stage by chemical desiccant application such as potassium chlorate (4 percentage). The study was conducted with completely random block design replicated three times at Southern Marmara Region in 2005 and 2006. In this study, dry matter translocation (DMT- mg grain-1), dry matter translocations efficiency (DMTE- percentage), rate of grain weight reduction (RGWR- percentage), mean productivity (MP- kg ha-1) and seed yield tolerance (SYT- kg ha-1) were determined. Two-year averages indicated that the lines C9 and N x E (3) were more drought resistant than the other genotypes in respect of DMT, RGWR, MP and STY