دراسة تأثير الرش بحامض السالسيليك في الفعالية الإنزيمية و الصفات التشريحية لثمار نخلة التمر Phoenix dactylifera L. صنف الحلاوي

Abstract EN

The study was carry out in private orchard in jezera-shatt AL Arab during growing season 2012 to study the effect of spraying the plant hormone concentrations salicylic acid (0 ,25 , 50 mg /L) on reaction some ripening enzyme (invertase , cellulose and poly phenol oxidase ) during growth and development of fruits stage and the attempt to link the event to changes in anatomical characteristics of the relay maturity physiological (Khalal) ,where results showed that treatment significantly increase the enzyme in Khalal and Rutab stage and not to spray concentration 25 and 50 mg/L any significant effect , while the concentration of 50 mg/L clear impact in increase invertase activity in Kimry stage ,as spraying Salicylic acid concentration of 50 mg/L to increase the Celulase and Polyphenol oxidase enzyme in Khalal stage and reduce the invertase activity in Khalal stage.

Has shown results when tissue section of the fruit of the date palm regular of the cell of the fruit and clarity of the plant cell wall in the fruits Hillawi treatment with Salicylic acid concentration of 25 mg/L and the treatment comparison (control), While the tissue sections taken from the fruits of date palm treatment with Salicylic acid concentration of 50 mg/L irregular cells as a result of rupture and analyzes the walls , The results also showed that spraying Salicylic acid concentration of 25 mg/L significant in the thickness of the layer inner mesocarp ,While he has no significant on the rest of the anatomical characteristics studied