Effect of Alar and Light Intensity on some Vegetative Growth Characteristics of Juniper Plant (Juniperus Sabina L.)

Abstract

The research carried out at the Department of Horticulture and Landscape Engineering in the Agricultural Research and Experiment Station of the College of Agriculture / University of Kirkuk in Al-Sayada, which is located at an altitude of 300 meters above sea level and at 35.23 North latitude and 44.20 East longitude. The aim of the study is to know the effect of foliar spraying with alar in three concentrations (0, 750 and 1500) mg.L−1, where the plants were sprayed after planting twice on (6/7/2021 and 6/22/2021) and two levels of light intensity. (50% of the light intensity inside the wooden canopy and 100% of the light intensity under direct sunlight) on the growth of juniper plants and to determine if juniper cultivation is successful in Kirkuk’s particular environmental and climatic circumstances, . A randomized complete block design (RCBD) was used to conduct the experiment. The treatments were distributed randomly to the experimental units, with three replications, three seedlings in one experimental unit. The plants were grown in each experimental unit, three plants, the distance between one plant and another was 40 cm, and the distance between one replication and another was 1 meter. The characteristic of the length of the long branches from the base of the main branch, and the characteristic of the length of the short branches at the end of the main branches, which amounted to (3,255 branches.plant−1, 28,460 cm, 12,533 cm) respectively, which did not differ significantly between them at the end of the experiment.