تأثير فترات التكييس و الرش بمستخلصي جوز الهند و الطحالب البحرية في بعض الصفات الفيزيائية لثمار نخيل التمر Phoenix dactylifera L. صنف الساير

الملخص EN

The present study has been conducted at a private orchard in Hartha, Basrah, province during the season of 2012; on the date palm cv Sayer.

The aim from the current study to determine the effect of Bagging and plant extracts spraying on the physical properties of the fruits.

The Bagging was studied at three different periods and performed with brown paper the periods were without Bagging ; 30 and 45 days post-pollination.

While the tested plant extracts were as follow: coconut water with concentrations of (0 ; 100 ; 200 and 300) ml /liter-1 two weeks post-pollination and the Algaren extract (extracted from marine plants) at with concentrations of (0 ; 2 ; 3 and 4) ml / liter-1 seven weeks post-pollination.

The results revealed that both bagging periods(30-45) had a significant effect one were : the (weight, length, diameter, size and pulp weight) of Sayer fruits during Rutab and Tamr stages.

The period of 45 days post-pollination was reported thats the highest levels (6.53 g, 3.41 cm, 1.81 cm, 6.46 cm3 and 5.65 g) on the relay for the Rutab stage.

(5.53 g , 3.23 cm , 1.65 cm , 5.36 cm3 and 4.75 g) on the relay at Tamr stage .All of tested concentrations for both plant extracts were (coconut water and Algaren) show an increment in the above-mentioned tested parameters: noteworthy the highest concentration led to the most significant results, the treatment of Algaren extract at 4 ml / liter-1 showed the highest levels (7.22 g, 3.51 cm, 1.87 cm.

7.09 cm3 and 6.34 g) on the relay for the Rutab stage , (6.21 g, 3.35 cm, 1.74 cm, 6.10 cm3 and 5.42 g) on the relay at Tamr stage.The interaction between bagging periods and plant extracts treatment was elucidated that the bagging up to 45 days post-pollination and Algaren extract at concentration of 4 ml / liter-1 reported the most significant results for study the physical properties at both Rutab and Tamr stages.

(7.44 g , 3.58 cm , 1.91 cm , 7.20 cm3 and 6.56 g) on the relay for the Rutab stage, (6.40 g, 3.43 cm, 1.77 cm , 6.28 cm3 and 5.62 g) on the relay at Tamr stage.