Abstract

This study was carried out during the winter season of 2022-2023 at the Research Station of College of Agricultural Engineering Sciences, University of Baghdad /AL-Jadiriya, Iraq. In order to know the effect of seed soaking with Moringa leaf extract on some vegetative growth characteristics and biological yield of three bread wheat cultivars. Randomized Complete Block Design with the arrangement of split-plots with three replications was used. Bread wheat cultivars (Rasheed, Buhooth 22, Buhooth 10) occupied the main plots while treatments of soaking with Moringa leaf extract occupied the sub-plots, they included three concentrations (1% , 3% , 5% in addition to 0% tap water as control). The obtained results indicated that cultivar Rasheed was superior in plant height (100.23cm), flag leaf area (48.06cm²), number of tillers (409.3m^-2), spike length (17.38cm), dry weight (1243.3 g m^-2) and biological yield (12.45 t ha^-1). The results showed that most of  the treatments Moringa leaves extracted recorded significant differences from the control treatment which gave the lowest values, except for the number of tillers. The highest values were in the 3% concentration treatment and for all studied traits that were included plant height (105.11cm), leaf area (49.29cm²), spike length (15.83cm), dry weight (1283.3g m^-2) and biological yield (12.24 t ha^-1). The effect of interaction for both factors was significant in most studied traits except for the number of tillers.