تأثير أصناف اللقاح في فعالية أنزيمات نضج ثمار نخيل التمر Phoenix dactylifera L. صنف الليلوي

الملخص EN

The effect of the pollen variety (Ghannamy Ahmer, Ghannamy Akhder, Samasmi, Khikri) on the effectiveness of the enzymes of the maturity (invertase, cellulase, and polyphenols oxidase) was studied for date palm fruit cultivars grown in the Fayhaa-Shatt al-Arab region for the 2011 growing season.

The results showed that the pollen source significantly effects on the reaction of maturity enzyme, while enzyme reaction differenced owing to pollen cultivar.

As the results showed that the pollen Variety ( Ghannamy Ahmer ) significantly in increase invertase and cellulase enzyme at Hababok stage and significant superiority than ether cultivars, the Ghannamy Akhder and Khikri significant effect in increase invertase enzyme reaction at end Kimri stage (12th after pollination).

As for, Samasmi cultivar showed maximum enzyme reaction of tow stage from growth and development at start Kimri and Rutab stage, as results showed the four cultivars from pollen grain high enzyme activity for cellulase enzyme at Kimri stage (8th after pollination).

As for ppo enzyme record high enzymatic reaction at start Kimri stage for fruits pollination of pollen grain Samasmi, Khikri, and Ghannamy Akhder, as for the pollination of the fruit of pollen grain, Ghannamy Ahmer appeared high action at end Kimri stage.

The conclusion from the study that the pollen cultivars effected in behavior and activity of maturity enzyme.

The result s indicate significantly for Ghannamy Akhder cultivar in ripening ratio to reached 42.98%, this increase correlated with the highest increases in invertase enzyme activity.

While the Khikri cultivar showed a decrease in maturity compared to the other that reached 20.37%