Effect of boron and gibberellins spray on the chemical content in the leaves of olive tree
Abstract
This examination was done in the olive orchard of, Civil Engineering Department, College of Engineering – University of Baghdad-Al-Jadriya during 2015/2016 growing seasons to research the impact of gibberellins (GA3) and boron spray on 15 year's old trees of "Ashrasi" olive cultivar. This examination included two treatments, viz: three levels of spraying of GA3, 0 (GA0), 100mg.L-1 (GA100) and 200 mg.L-1 (GA200) and three concentration of boric acid (17% Boron) such as spray 0 (B0), 25 mg.L-1 (B25) and 50 mg.L-1 (B50) with their replications. Medicines were imitated multiple times at factorial trial in a Randomized Complete Black Design (RCBD) using 27 trees. The exploratory outcomes demonstrated that gibberellin at 200 mg.L-1 and boric acid at 50 mg.L-1 (GA200B50) altogether gave the most elevated leaf chlorophyll content of 64.34 and 68.10 (SPAD unit), leaf carbohydrate content 0.52 and 0.68 %, the most elevated leaf nitrogen content of 1.204 and 1.446 %, leaf potassium content of 1.582 and 1.710 %, leaf boron content of 26.19 and 32.98 mg.kg-1 and leaf zinc substance of 13.10 and 17.12 mg.kg-1 for the two seasons, separately. The least estimation of these parameters was found in the control (GA0B0) treatment.
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