Effect of NAA, GA₃ and cytophex spraying on samany and zaghloul date palm yield, fruit retained and characteristics [electronic resource].

Includes reference.

This investigation was conducted during two successive seasons (2005 and 2006) at the Experimental Research Station, Fac. Agric. Giza, Egypt. Samany and Zaghloul fruiting date palms were conducted in this study. The study is aimed to improve fruit quality through spraying NAA at 0, 50, 100, 150 ppm, GA3 at 0, 50,100, 150 ppm and Cytophex (CPPU, 2-Chloro-4-pridyl phenyl urea) at 0, 25, 50, 75 ppm on strands after carples fall (4 weeks after pollination). Results indicated that spraying 150 ppm of GA₃ produced the iowest retained fruits and bunch weight of Samany and Zaghloul cultivars. Also, spraying 75 ppm of cytophex increased significantly fruit and fiesh weight of Samany and Zaghloul fruits. Fruit length, fruit diameter and fruit size of Samany and Zaghioul date palm had increased by spraying cytophex at 75 ppm. Fruit chemical properties appeared that fruit moisture content was reduced by spraying GA₃ at 150 ppm or cytophex at 75 ppm in both cultivars during the two seasons. In addition, spraying 75 ppm of cytophex increased Samany and Zaghloul fruits content of TSS, Total soluble sugars and reducing sugars in the two seasons. From these results, spraying 75 ppm of cytophex is the best treatment to increase Samany and Zaghloul fruits quality under Giza conditions.

Summary in arabic.

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