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Lodging is a major constraint to increasing yield in many crops, but is of particular importance in the small-grained cereals. This study investigated the genetic contro! of lodging and component traits in wheat through the detection of utiderlying quantitative trait loci (QTL), The analysis was based on the identittcation of genomic regions which affect various traits related to lodging resistance in a population of 96 doubled haploid lines of the cross 'Milan' x 'Catbird", mapped using 126 microsatellite markers. Although major genes related to plant height (Rhl genes) were responsible for increasing lodging resistanee in this cross, several other traits independenl of plant height were shown to be important such as rool and shoot traits, and various components of plant yield. Yield components sueh as grain number and weight were shown to be an indicator of plant susceptibility to lodging-QTL for lodging and associated traits were found on chromosomes IB, ID. 2B. 2D. 4B, 4D. 6D and 7D. QTL for yield and associated traits were identified on chromosomes IB, ID. 2A. 2B. 2D. 4D and 6A,