Effect of Spraying Seaweed Extract on Fruiting of Sakkoti Date Palms

摘要

This study was carried out during 2017 and 2018 seasons to examine the effect of spraying seaweed extract once, twice, or thrice at 0.05 to 0.2 % on some vegetative growth characteristics, nutritional status of the palms, yield and fruit quality of Sakkoti date palms. Treating the palms once, twice or thrice with seaweed extract at 0.05 to 0.2% was accompanied with enhancing all growth characteristics, total chlorophylls, total carotenoids N, P, K and Mg, initial fruit setting %, fruit retention %, yield, bunch weight as well as physical and chemical characteristics of the fruits over the check treatment. The promotion on these parameters was in proportional to the increase in concentrations and number of sprays. All characteristics were unaffected by increasing concentrations from 0.1 to 0.2% and frequencies from twice to thrice. The best results with regards to yield and fruit quality of Sakkoti date palms grown under Aswan region were obtained due to treating the palms twice with seaweed extract at 0.1%.