The research consisted of eight parents of linseed which were crossed as per half diallel analysis (Griffing 1956 Model 1 and Method 2) in Rabi 2010-11 to generate 28 crosses (excluding reciprocals). These 28 crosses were assessing along with eight parents and three checks viz: T-397, Neelum and Allahabad Local in RBD having three replications during 2011-12 at the Field Experimentation Centre of Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad. | Half diallel analysis for estimation of heterosis for phonological traits in linseed (Linum usitatissimum L)