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

The Effect of Indole Butyric Acid IBA Concentrations on ‎Rooting and Growth of Stem Cuttings of Thymus spp. Which ‎Spread Naturally in Latakia Governorate

Malak Sabbouh*(1) Talal Amin(2) and Hafez Mahfoud(3)

(1). Forestry and Environment Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.

(2). Biotechnology Department, General Commission for Scientific Agricultural Research GCSAR, Damascus, Syria.

(*Corresponding author: Eng. Malak Sabbouh. E-Mail: malak.sabboh@gmail.com).

Received: 08/01/2019                               Accepted: 01/04/2019


The study was conducted during 2018 to determine the effect of Indole Butyric Acid (IBA) on rooting of three types of thyme spread naturally in Latakia governorate. A stem cuttings of thymus capitatus (Snobar Gableh), Thymus syriacus (Kasab), and thymus cilicicus (Al-Dalia) were collected. and treated with different concentrations of IBA (0, 250, 500, 750 and 1000 ppm) then they were planted under controlled conditions at the greenhouse of the seedlings of olive propagation in Latakia. The root traits (rooting%, number of roots and length of roots), and shoot traits (length of main stem cm, number of shoots and length of shoots) were measured after two months of planting. The results were analyzed according to Randomized Completely Block Design with three replicates. The treatments of IBA showed positive effect on all the studied trait as compared with the control, according to the concentration of IBA and the species studied. The concentration 500 ppm showed the best results over the studied species of thyme in terms of rooting percentage (81.78%), number of roots (139.86) and number of shoots (6.97), while the concentration of 250 ppm gave the highest root length (16.83 cm) and the main stem length (9.5 cm). In general, these concentrations significantly surpassed the other concentrations. T. cilicicus showed the best root characteristics, while T. capitatus had better shoot characteristics , whereas T. syriacus showed intermediate values between the two previous species.

Key words: Thymus spp., IBA, Stem cutting, Rooting percentage.

Full paper in Arabic: PDF

The Influence of IBA Auxin on Stem Cuttings Rooting of Some Prunus cerasia Blanche Shrubs

Mohammad Nizam*(1) Haitham Ismael(2) and Hafez Mahfoud(1)

(1). Latakia Agricultural Research Center, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(*Corresponding author: Eng. Mohammad Nizam. E-Mail: mohammad.nizam85@hotmail.com).

Received: 09/07/2018                                Accepted: 16/09/2018


The research was carried out in 2017 on twenty-four shrubs of Prunus cerasia Blanche naturally prevailing in 12 sites in the Syrian coast to determine the ability of their stem cuttings to rooting after treatment with different concentrations of IBA (Indole-3 Butyric Acid): 1000, 2000 and 4000 ppm and the control. The findings showed that treatment (2000) ppm was the most significant and giving the highest rooting percentage, number of roots and root length for both wood and semi-wood cuttings. The shrubs LK1 and LK2 from Kassab location gave the best results for rooting of wood and semi-wood cuttings. LK1 shrub gave the highest rooting percentage, number of roots and root length for wood cuttings at concentration of 2000 ppm (26.66%, 4.33 root/cutting, 4.85 cm respectively). As for semi-wood cutting, the highest rooting percentage was for LK1 and LK2 shrubs at concentrations of (2000 and 4000) ppm (33.33)%, while the highest number of roots was for LK2 cuttings at concentration of (2000) ppm (6.19) root/cutting, and the highest root length was for LK1 cuttings at concentration of (2000) ppm (6.63) cm.

Key words: Wild plum, Stem cuttings, Prunus, IBA.

Full Paper in Arabic: PDF