Effect of Sowing Dates and Different Concentrations of IBA ‎on the Multiplication of ‎Dodonaea viscosa ‎

Aysar Mohammad Salem AlMeaamari*(1) and Alaa Hashem Younes AlTaai(1)

(1). Horticulture and Forestry Department, Faculty of Agriculture, Al Mosul University, Iraq.

(*Corresponding author: Dr. Aysar Mohammad Salem AlMeaamari. E-Mail: aysaralsalim@yahoo.com).

Received: 21/03/2020                               Accepted: 12/05/2020


This study was conducted in a plastic house at the Department of Horticulture and Landscape Design, Faculty of Agriculture and Forestry,  Mosul University, In tow dates (15th November and 15th February) during 2019/2020 season, in order to study the effect of the date of sowing and treatment with Indole Acid at concentrations of (0, 250, 500, 750, 1000 and 2000 mg/L), and the effect of the interaction between them on root ability of the half woody cuttings of Dodonaea viscosa plants, and the extent of its effect on improving the characteristics of root and plant growth.  The experiment was laid according to completely randomized design CRD with two factors and 3 replicates per treatment, and ten cuttings per replicate. The data was statistically analyzed and its treatments were compared with Duncan multiple test. The results showed that the date of getting the cuttings and treatment with Indole acid had a significant impact on the studied traits. No rooting was observed at the first date, while the second date had a clear response after ten weeks of cultivation, where the highest rooting percentage was obtained (33.33 %) due to the treatment with a concentration of 1000 mg/L and the number of roots (14.43) and the highest value of root length (10.86 cm) and the number of vegetative branches (1.96) and the length of the vegetative branch (2.76 cm) besides the fresh weight of the roots (2.50 g) and the highest dry weight (0.08 g).

Keyword: Dodonaea viscosa, Sowing dates, IBA, Multiplication.

Full paper in Arabic: PDF