Document Type : Articles
Author
Department of Horticulture, College of Agriculture, Kirkuk University, Iraq
Abstract
The research was conducted in the grape field of the University of Kirkuk / College of Agriculture in the Sayada region-Iraq, at latitude 35.33 north and longitude 44.20 east, during the growing season 2023 to study the effect of spraying with chelated Iron in three concentrations (0, 0.5 and 1) g L-1 and Benzyl Adenine in three concentrations (0, 50 and 100) mg L-1 on the vegetative growth and chemical content of young grape vines of Kishmishi cultivar, where the spraying was done with three dates each 4/15, 5/1 and 5/15/2023. The results obtained showed that spraying the vines with a concentration of 1 g L-1 of Iron chelated led to a significant increase in all the studied traits (Stem length and diameter, leaf area and content of chlorophyll, NPK and Fe, and branches content of dry matter) which amounted (139.56 cm, 182.78 mm, 76.04 cm2, 40.53 CCI, 2.34%, 0.34%, 0.85%, 651.70 mg kg-1, 41.28%) respectively, and spraying with a concentration of 100 mg L-1 of the growth regulator, Benzyl Adenine, resulted in a significant superiority in the characteristics (Length and diameter stem, leaf area, content of chlorophyll, P, K, Fe, and branches content of dry matter) which amounted (125.91 cm, 175.78 mm, 72.35 cm2, 39.51 CCI, 0.28%, 0.72%, 558.91 mg kg-1, 41.28%) respectively, while the two concentrations of 50 and 100 mg L-1 of Benzyl Adenine significantly affected the leaf content of nitrogen it amounted (2.09 and 2.11)% respectively, the bi-interaction between the levels of the factors included in the study had a significant effect, as the two levels excelled (1 g L-1 of Fe-EDDHA mixed with 100 mg L-1 of BA) and (1 g L-1 of Fe-EDDHA mixed with 50 mg L-1 of BA) significantly over the rest of the interactions for the studied traits
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