Abstract

This investigation was conducted at Biology Department, Faculty of Science, Soran University, located in Soran, Erbil Governorate, Kurdistan Region, Iraq The study included the influences of five concentrations of Nano-zinc EDTA, which contains 12% Nano-zinc (0, 60, 120, 180 and 240 mg L-1), using foliar and soil application methods, spraying two concentrations (0 and 100 mg L-1) of Salicylic acid (SA) and their combinations on some growth, yield components and yield of broad bean plant (Vicia faba L.) grown in calcareous soil. The factorial pot experiment was done using Randomized Complete Design (CRD) with four replications. The main results were as follow: the levels of applied nano-Zn, methods of application, SA concentration and their interactions affected on most of the growth and productivity characteristics the highest leaf area values were recorded from Zn2, soil application, and SA1 with the values of (16.38, 15.32 and 15.34) cm2 respectively, while their lowest values were obtained from Zn3, foliar application and SA0 with the mean values of (12.98, 14.83 and 14.81) cm2 respectively. The highest and lowest leaf area values (18.21 and 11.60 cm2) was observed from interaction treatments of (Zn2 × soil application × SA1 and Zn3 × Foliar × SA0) respectively. The highest pod weight values (134.81, 107.63 and 107.88 gr plant-1) were recorded from treatments Zn4, soil application, and SA1 respectively, while the lowest values (81.08, 96.00, and 95.76 gr plant-1) were noted from Zn1, foliar application, and SA0 treatments respectively.
The highest pod weight (143.02, 161.06 and 115.18) g plant-1 were recorded from interaction treatments of (Zn4 × soil application, Zn3 × SA1, and SA1 × soil application) respectively, while their lowest values (79.75, 75.73, and 91.30) g plant-1were recorded from interaction treatments of (Zn1 × soil application, Zn1 × SA1, and foliar application × SA0) respectively.