Impact of Spraying with the Jasmonic Growth Regulator and Adding Nutrient Solution on the Chemical Properties of Pummelo Seedlings (Shaddock)

Abstract

The College of Agriculture/Samarra University timber canopy was used for the 1/6/2022–1/6/2023 experiment. JA spraying and Ennne nutrition solution were applied to 54 Pummelo seedlings grafted on orange root to determine their chemical composition. Spraying seedlings with three concentrations of Jasmonates (JA) (0, 5, 10 mg.L-1) and three levels of nitrogen-rich (Ennne) nutrient solution (0, 4, 8 ml.L-1) The first appointment was 6/1/2022, the second 21 days later, and so on for the third date. This study used Randomized Complete Block Desigen (R.C.B.D) design as a factorial experiment with two components (JA and Ennne’s nutritional solution, three replications, two seedlings per experimental unit). Factors and their interactions were examined using SAS and the least significant difference (LSD) at 0.05. The study’s findings: After being sprayed with Jasmonates (JA) growth regulator, especially at a concentration of 10 mg.L-1, the nitrogen, phosphorus, potassium, carbohydrates, and Jasmonic acid content of the leaves increased to 0.49, 1.67, 3.40, and 107.2 mg kg-1, respectively, from the lowest rates seen in the comparison treatment. When compared to the control treatment, which had the lowest rates for nitrogen, phosphorus, potassium, carbohydrates, and Jasmonic acid, the sprayed leaves of plants given Ennne nutrient solution had significantly higher levels of these elements. The treatment G2E2 excelled and gave the highest rate of the leaves’ content of nitrogen, phosphorus, potassium, carbohydrates, and Jasmonic acid due to the dual interaction between jasmonic acid and Ennne nutrient solution, while the treatment G0E0 gave the lowest rate of the aforementioned traits.