A field experiment was carried out at the Al-Hsai District/Falluja City/Al-Anbar Province during the winter season 2020-2021. To study the effect of Nano potassium (NK) and Cytokinin (CTK) on the growth, and quality of the local cultivar of faba bean. Split plot system was used according to the design of a completely randomized block design R.C.B.D and three replications. The main blocks included four concentrations of CTK; 0, 50, 100, and 150 mg. L-1, while the secondary blocks included four concentrations of NP; 0, 1, 2, and 3 g.L-1. The results of the experiment were summarized as follows: The NK concentrations influenced all the studied properties. Where the concentration of 2 g.L-1 affected most of the studied properties, like the plant height of 122.9 cm, the number of branches per plant of 14.34 branches. plant-1, the number of leaves per plant of 157.9 leaves. plant-1, leaf area 4918 cm2. plant-1, and leaf content of chlorophyll of 48.28 SPAD, while the control treatment outperformed in the trait of flowering beginning with the lowest average number of days (61.67 days). The CTK concentration of 100 mg. L-1 affected significantly on most of the studied traits. Where it prevails in plant height of 130.97 cm, number of branches per plant 13.55 branches. plant-1, number of leaves per plant of 165.5 leaves. plant-1, and LA of 5689 cm2. Plant-1. The highest level of Leaf chlorophyll content of 44.98 SPAD was found in the CTK concentration of 50 mg. L-1, which was not significantly different from 150 mg.L-1. Whereas the lowest number of days from cultivation to flowering starts of 62.58 days were found at control treatment. The interaction between NK and CTK had affected most of the studied traits, as the interaction of 2 gm. L-1 and 100 mg. L-1 (NK x CTK) has the highest average of plant height (158 cm) and number of leaves per plant (186.1 leaves. plant-1). Whereas the interaction between 1 gm. L-1 NP and 50 gm. L-1 CTK has the highest number of branches per plant 16.61 branches. Plant-1. Moreover, the highest average of LA (6812 cm2.plant-1) was found in the interaction between 1 gm. L-1 NP and 100 mg.L-1 CTK. The highest Leaf chlorophyll content of 56.53 SPAD was found in the interaction of 2 gm. L-1 of NP and 50 gm.L-1 of CTK. Whereas, the same interaction has an insignificant difference on number of days from cultivation to flowering starts trait.

A field experiment was carried out in the fields of a farmer in the (Al-Boouda) area of Al-Karmah district - Al-Anbar Governorate during the summer season of 2022, to study the effect of spraying with several concentrations of the growth regulator (triacontanol) on the vegetative growth characters of soybean cultivars. The experiment was carried out in split plots arrangement, according to the RCBD design, with three replications. Four concentrations of growth regulator TRIA (0, 40, 50, 60) mg L−1 were allocated to the main plots, while three cultivars of soybean (Lee, Shama, Se-220) were allocated to the sub-plots. The result indicates that the Lee cultivar outperformed in most of the vegetative growth characters over the rest of the other cultivars such as the number of branches (6.91 branches Plant−1), plant height (98.08 cm), leaf area (38.62 cm2 Plant−1) and leaf area index (2.05). While the cultivar Shama was earlier to reached the stage of beginning flowering, and it took the least number of 57.00 days, compared to other cultivars. Whereas the cultivar Se-220 outperformed with highest mean of chlorophyll index in the leaves, reaching 37.43 spad. The results showed that the treatments sprayed with a growth regulator at a high concentration (60 mg L−1) were superior in most of the studied growth characteristics, and their average number of branches was (7.40 branches Plant−1), plant height (110.0 cm), and leaf area and leaf area index (44.87 cm2 Plant−1 and 2.38) respectively, and it needed the least number of days to reach the stage of the beginning of flowering at 58.33 days compared to the other concentrations. The results also indicated that the interaction between the study factors had a significant effect on most of the vegetative growth characters, where the Lee cultivar plant sprayed with a concentration of (60 mg L−1) of the growth regulator achieved the highest averages for several characters, including number of branches, plant height, and leaf area, while the two-way interaction did not affect significantly the number of days from planting to the beginning of flowering and the leaf area index.