Pollination is a critical process in date palm production lines that affects yield and fruit quality. The main aim of this study was to evaluate the effect of different pollination methods (dusting of pollination powder and spraying of pollen grain suspension with sugar or ascorbic acid) on yield and fruit quality of Barhy date palm. This study was conducted in El-Dakhala Oasis, New Valley during the 2019, 2020 and 2021 growing seasons. After three and six days of pollination, the modified approach (trimming 25% of tufts and setting 10 tufts/spathe plus dusting with 0.1 g pollen powder and bagging with shaking) or spraying female spathes with 1 g pollen grains + 10% ascorbic acid produced a higher performance yield and improved fruit quality. Furthermore, the proposed modified method of combining pollination and thinning has various advantages; including saving time, effort, labor and cost, and improving applicability, and can be recommended as a promising pollination strategy for the future.

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Pollination is a critical process in date palm production lines that affects yield and fruit quality. This study aimed to evaluate the effect of sprayed pollen grain powder on yield and fruit quality of Madjool, Segae and Khodry date cultivars. This study was conducted in Dakhla Oasis, New Valley Governorate, Egypt during the 2019 and 2020 seasons. Results showed that the most beneficial treatment in this concern is spraying female spathes with 0.5 to 1 g pollen grains plus 10% sugar/L water which gave economical yield with good fruit quality. Moreover, it is distinguished to increase the pollination efficiency and save time, effort, labour and cost likewise more practical because it plays a promising in pollination technique in the future.

This study was carried out during two successive seasons of 2019 and 2020. To evaluate the effect of some nutrients spray on yield and fruit quality of Sewy date palm cultivar grown under El-Kharga Oasis , New Valley conditions. The experiment was set up in a complete randomized block design with ten treatments, using five replicates, bunch each. The data revealed that: Mega phosphor, omega potas and omega cal-mag spray significantly increased the fruit retention and bunch weight compared to the untreated ones. Omega potas application was more effective compared with omega cal-mag or mega phosphor. Spraying either mega phosphor, omega potas or omega cal-mag at any studied concentration was accompanied by improving fruit quality in terms of a significant increase in fruit weight, total soluble solids, sugars contents, NPK and beta carotene and significantly decreased in total acidity tannins and phenols compared to control. The best results were obtained when using 4 cm 3 /L of omega potas or 4 cm 3 /L of omega cal-mag or 4cm 3 /L of mega phosphor, respectively. Also, no significant differences were found between spraying the two concentrations (2 cm 3 or 4 cm 3 of mega phosphor, omega potas and omega cal-mag. Therefore, from the results of the study, it could be concluded that must be sprayed the date bunches with 2 cm 3 /L of omega potas or 2 cm 3 /L of omega cal-mag to obtain a high yield with good properties, hence, high value marketing.