Four female date palm cultivars namely Sewi, Amhat, Samany and Zaghloul were pollinized using pollen grains collected from five different locations (Nobaria, Rasheed, New Valley, Aswan and Giza) to study the effect of different pollinizer sources on productivity and fruit properties, also to determine the phylogenetic tree and the relationship between each pollinizer and the four female cultivars by using RAPD molecular markers. The obtained results showed that bunch weight character of each female cultivar was affected by the different sources of pollen grains. In the concern, Rasheed pollinizer followed by Nobaria recorded maximum bunch weight for Sewi female cultivar, while Nobaria pollinizer followed by Giza pollinizer gave the heaviest bunch for Amhat, on the other hand, Giza pollinizer followed by Nobaria was the best for Samany date palm; finally Rasheed pollen grain source followed by Giza gave the heaviest bunch of Zaghloul female date palm. RAPD markers detected the phylogenetic tree for the four date palms and five pollinizers; the polymorphism percentage was 76.08%, also total alleles using six primers were 46 and they ranged between170 to 2005bp. The proximity matrix between Nobaria pollinizer and Samany was 9.5% revealed the lowest relationship, while the highest relationships were 98.5%, 95.2% and 81% between Giza pollinizer with Sewi, Nobaria and Zaghloul, respectively.
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