Relation of Fruiting in Seewy Date Palm Cultivar with Spraying Boric Acid and Calcium Nitrate
Amany Mostafa | Emad Ashmawy | Yosef Diab | Walaa M. Eid
The objective of this work to study the influence of foliar application of boric acid (0, 125, 250 and 500 ppm) and calcium nitrate (0, 1%, 2% and 3%) on fruit set and yield as well as fruit quality of Seewy date palm cultivar growing in El Dakhla Oasis, New Valley governorate during two successive seasons (2021, 2022), palms were treated with different rates of boric acid (zero, 125, 250 and 500 ppm) and sprayed with calcium nitrate at rates (zero, 1%, 2% and 4%). Results showed that all studied treatments had significant effect on fruit set and total yield compared with the control treatment in both experimental seasons. Spraying boric acid at 500 ppm with calcium nitrate at 2% in both seasons gave the best results of fruit set and total yield. In addition, this combination gave the highest T.S.S content, total sugars and reducing sugars; in contrast, the lowest values of total acidity in two studied seasons.
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