Samer Naser<\/strong>(1)*<\/sup><\/strong><\/p>\n (1).Sub Directorate of Forestry Research, Lattakia Center of Scientific Agricultural Researches (GCSAR), Lattakia, Syria. (*corresponding author: Dr. Samer Naser E-Mail: nasersamer156@gmail.com<\/u>).<\/p>\n Received: 3\/08\/2020\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted: 23\/09\/2020<\/p>\n Abstract<\/strong><\/p>\n The study aimed to find out the effect of some agricultural substrates on the growth of seedlings of Myrtus<\/em> communis<\/em> and Biota<\/em> orientalis<\/em> to obtain exceled seedlings in its shoot and root system. Three agricultural substrates were used : Altorf (T)\u060c Nursery soil (S)\u060c mixture of Altorf and Nursery soil (TS) by (1:1 V\/V). and studied several quantitative indicators of growth and development of the total shoot and root system of the seedlings. Regarding the final germination\u060c Altorf achieved the highest germination rate for Myrtus communis<\/em> and Biota<\/em> orientalis<\/em> (79.3% – 86%\u060c respectively)\u060c outperforming a high significant\u00a0 superiority for the control (48.6% – 56.3%\u060c respectively) compared to achieving significant differences with the mixture substrate \u00a0(59.8% – 64.7%\u060c respectively). The results indicated the continued superiority of the Altorf and significantly over the control\u060c from germination through the length of the vegetative and root groups to the average dry weight of these groups and both plants. Consequently\u060c Altorf play a clear role in improving the data and indicators measured at the control alone compared to its mixture at the level of physical\u060c chemical and biological characteristics to confirm our results on the necessity of adding Altorf to the Nursery soil to improve the germination and growth of seedlings up to the end of the success of forest afforestation projects.<\/p>\n Keywords:<\/strong> Myrtus<\/em> communis<\/em> \u060c Biota<\/em> orientalis<\/em>. Agricultural substrates \u060c germination.<\/p>\n Full paper in Arabic:\u00a0PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Samer Naser(1)* (1).Sub Directorate of Forestry Research, Lattakia Center of Scientific Agricultural Researches (GCSAR), Lattakia, Syria. (*corresponding author: Dr. Samer Naser E-Mail: nasersamer156@gmail.com). Received: 3\/08\/2020\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted: 23\/09\/2020 Abstract The study aimed to find out the effect of some … Continue reading