This investigation was executed during two successive seasons of 2006 and 2007 at the Experimental Orchard of Fruit Section, Faculty of Agriculture, Assiut University on Manfalouty pomegranate cultivar. Fifty trees of Manfalouty pomegranate cultivar were selected and divided into ten treatments; each treatment represented five trees (Replicates). The study aimed to investigate the effect of flower thinning and ethrel with or without GA 3 spraying on yield and fruit quality of this cultivar. The treatments consisted of: manual thinning of all the flowers appeared during the last week of May till the end of flowering period, spraying with gibberellic acid (GA 3 ) at 50, 100 and 150 ppm. , flower thinning + spraying with GA 3 at 100 ppm., spraying with Ethrel at 1000 ppm. , spraying with Ethrel at 1000 ppm + GA 3 at 50, 100 and 150 ppm and the control (water spraying). The study indicated that flower thinning recorded the highest number of grade I fruits. Flower thinning and the flower thinning + spraying caused a significant decrease in the fruit numbers of grade III while the remained treatments showed insignificant differences.
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