The ability of plant leaves (Ficus retusa L.) and (Phoenix dactylifera L.) on the accumulation of lead and nickel In the city of Tartous

The aim of the study was to study the ability of the leaves of the figs (Ficus retusa L.) and (Phoenix dactylifera L.) in the city of Tartous to accumulate the lead elements (Pb), nickel (Ni).

The role of some trees leaves in the detention of marine aerosols at the Syrian coast

In this study, the quantity of deposited particles on some trees leaves at Syrian coast has been determined; and the seasonal changes in the concentration of trace metals (Zn,Mn,Cd,Pb) at both sides corresponding to the land and sea have been identified.

Determination of some trace heavy metals in dust particles deposed on the leafs of some trees along Syrian coast

This study deals with the determination of the quantity of solid dust particles deposed on the leafs of some trees along Syrian coast and the concentration of some heavy metals in it (Zn, Fe, Pb, Cu, Ni, Cd, Co, Mn) .Some sites near to human and industrials activities , and others near to agriculture activities , and others relatively far from pollution sources has been selected. The results showed that the quantity of solid dust particles on leafs trees and concentration of heavy metals in it such as (Pb, Ni, Cd, Co) increasing near the industrials activities and dense traffic, and decreasing in the sites that relatively far from of pollution sources. However Cypress trees attach solid quantities more than Pride of china, following Rever red gum and Blue-leafed wattle and Oleander, and the Palm tree come in the last.

Effect of Some Plant Extracts and Gibberellic Acid in Fruit Drop and Improvement of Some Qualities of Date Palm Fruits Phoenix dactylifera L. var. Briam

The study was conducted at the growing season 2009 in one of an orchard in Abu-Al-Khaseeb region – Basrah, studied the effects of spraying of GA3 concentration of 25 mg. l-1 and spraying of liquorice extract concentration (5, 10) g.l-1 and spraying of Roselle extract concentration (15, 20) g.l-1 as well as compared treatment (spraying with distilled water) in two stage hbabok and Kemri on fruit drop and qualities of Braim cultivar, showed results that the spray in hababok stage and treatment of GA3 concentration 25 mg.l-1 increased of weight and size of the fruit significantly and did not show significant differences between the spray at the stage of hababok and Kemri in influencing the T.S.S., while treatment of spraying liquorice extract concentration of 5 gm.l- 1 increased total soluble solids and dry matter significantly, werever spraying at the stage of Kemri with GA3 increased significantly in water content of fruits, while sprarying in hababok stage increased in dry matter content of the fruits and did not show significant differences between the results of treatments or the stage of spraying in effect of Drop fruits for a cultivar of Braim through the stages of growth and maturity (Khalal, Rutab and Tammar) this results confirms that the phenomenon of drop fruit under the influence of genetic type male and female cultivar.