Abstract
Triple test cross analysis applied to study additive, dominance and epistatic components of genetic variation for
five seedling traits namely shoot length, fresh shoot weight, root length, fresh root weight and root/shoot ratio at
two salinity levels 0 (control) and 10 dSm-1 in wheat. The results revealed that the epistatic component is an
important element for salinity tolerance at seedling stage in wheat. Both additive and dominance gene effects
were involved in the inheritance of shoot length, fresh shoot weight, root length fresh root weight and root/shoot
ratio. Complete dominance was indicated for shoot length, fresh root weight and root/shoot ratio and partial
dominance was observed for other traits at control and over dominance was observed for shoot length, fresh
shoot weight and root/shoot ratio, complete dominance for fresh root weight and partial dominance for root length
at 10 dSm-1 salinity level. Significant epitasis was observed for all the traits except shoot length at both the salinity
treatments
