Maher AlAbrash*(1) Yahia Kamari(2) and Mahmoud Khudour(1)
(1). Department of Horticulture, Faculty of Agriculture, University of Aleppo. Aleppo, Syria.
(2). Aleppo Research Center, General Commission for Scientific Agricultural Research GCSAR, Damascus, Syria.
(*Corresponding author: Eng. Maher AlAbrash. E-Mail: almaher99a@gmail.com).
Received: 16/10/2019 Accepted: 30/11/2019
Abstract
The research was carried out in Homs governorate using ornamental hawthorn (Pyracantha coccinea) seeds to study the effect of several factors (fruit color, date of planting, imbedding, GA3) on germination. The seeds were collected from two kinds of fruits (red and orange) and planted in two different dates (autumn and spring) after being treated with cold imbibed for (30 and 60) days and with different concentrations of GA3 (200, 400 and 600) PPM for five hours, in addition to the control. The results showed that there were no significant differences in the germination criteria studied between the fruit color (orange and red), while the spring date exceeded the autumn date in the germination percentage, which reached (27.5 – 19.4 %) respectively. The results also showed that all treatments exceeded the control, where germination rate was (0%), while treatment with GA3 (400) PPM and cold imbibed for 60 days gave the highest germination rate (35.8-57.5 %) respectively. As for the combined effect of the studied factors, the treatment that exceeded the other factors was 400 PPM of GA3, and the seeds that were taken from orange fruits in the spring time where the germination rate reached ((70%.
Keywords: Ornamental hawthorn, Seed propagation, GA3, Imbedding, Planting date.