تأثير الرش بحامض الأسكوربيك و التوكوفيرول و السليكون في بعض الصفات الفسيولوجية لفسائل نخيل التمر Phoenix dactylifera L. صنف البرحي النامية في تربة مالحة

الملخص EN

This study was carried out in one the private orchards in Al- Haritha area – Al- Meshab area, 25 Km away from Basrah Governorate center, during the 2017 and 2018 seasons.

In order to determine the effect of spraying on the antioxidants (Ascorbic acid and tocopherol), and the Silicon element in the concentration of some plant pigments, chlorophyll a, b, total chlorophyll, carotenoids, soluble protein, carbohydrates and amino acid proline in date palm offshoots leaves cv.

Barhi under salt stress.

The results showed a higher concentration of 450 mg l-1 of ascorbic acid effectiveness significant in concentration of ( chlorophyll a, b, total chlorophyll, Carotenoids, soluble protein, and Total soluble carbohydrates in both seasons, with the highest concentrations of chlorophyll a, b, total chlorophyll, and carotenoids ( 6.33 , 7.55 ), ( 3.87 , 3.62 ), ( 10.21 , 11.18 ), ( 0.049 , 0.145 ) mg .

100 g-1, and recorded values ( 4.12, 5.06 ), ( 46.18, 47.36 ) mg g-1 soluble protein and Total soluble carbohydrates.

While the control treatment recorded the lowest values ( 5.02 , 4.93 ), ( 2.21, 2.35 ), ( 7.24 , 7.26 ), ( 0.026 , 0.026 ) , 100 mg g-1 and ( 2.76 , 2.76 ) , ( 29.82 , 29.83 ) mg.

g-1 for chlorophyll a, b, total, soluble protein, and Total soluble carbohydrates respectively.

The spray treatment with tocopherol was measured at a concentration of 450 mg l-1 a significant reduction in the concentration of the amino acid proline in the leaves in both seasons amounted to 18.25, 17.03 μg g-1, compared with the control treatment with the highest values of 32.42, 32.49 μg g-1.

The effect of the number of sprinklers had a significant effect on the studied traits, and the mutual interaction showed a significant effect on the traits studied