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Journal of Biological Sciences

Year: 2006 | Volume: 6 | Issue: 6 | Page No.: 1118-1121
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Authors

A.A. Al-Khateeb

S.A. Al-Khateeb

R. Okawara

I.A. Al-Abdoulhady

Keywords

Research Article

Promotive Effects of 5-Aminolevulinic Acid (5-ALA) on Fruit Yield and Quality of Date Palm cv., Khalas

A.A. Al-Khateeb, S.A. Al-Khateeb, R. Okawara and I.A. Al-Abdoulhady
The effects of spraying 5-ALA on date palm in relation to chlorophyll biosynthesis and fruits yield an quality during 1998/1999 seasons had been investigated. Fruits of Khalas cv. were sprayed with 5-ALA aqueous solutions of 0, 50 and 100 ppm two weeks after fruit setting. Spraying was applied biweekly for six weeks duration. Fruits chlorophyll content in Khalal stage was significantly increased with 5-ALA treatments. Fruit weight, fruit volume and fruit flesh percentage of rutab stage were significantly increased with 100 ppm 5-ALA. On tamer stage, fruit volume was significantly increased with 5-ALA treatment, while fruit weight was not. Total and reducing sugars were significantly increased with 5-ALA treatment in rutab stage, but not in tamer stage.
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