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Effect of Sitofex (CPPU) on fruit set, fruit quality of Anna apple trees [electronic resource].

By:

Abou Grah, Fatma I. I

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Language: English Summary language: Arabic Description: p.54-65Other title:

تأثير الستوفكس CPPUعلى عقد ومحصول وجودة ثمار التفاح صنف آنا [Added title page title]

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Fayoum journal of agricultural research and development, 2009 v. 23,(1B) [electronic resource].

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In: Fayoum Journal of Agricultural Research and Development 2009.v.23(1B)Summary: Efficiency of the synthetic cytokinin (CPPU) (N- (2-chloro-4- pytidyle-N-phenylurea) was studied on Anna apple trees at full bloom, 14 days after full bloom and two time spraying (at full bloom and 14 days after full bloom). CPPU tended significantly to increase the percentage of fruit set, yield and fruiting, while it decreased fruit drop of all treatments. The best results were obtained by 20 ppm CPPU at full bloom and 10 ppm CPPU two time spraying in the first season. While, the 15 pm CPPU at full bloom was the best during the second season. Highest fruit weight, fruit size and fruit dimensions were obtained by 15 ppm concentrations at 14 days after full bloom in the two seasons. Concerning fruit shape index (LID), an increase in fruit diameter than its length due to all conducted CPPU treatments in both seasons. As well as, acidity and TSS/acid ratio were significantly improved as a result of all studied treatments when compared to the control.

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Efficiency of the synthetic cytokinin (CPPU) (N- (2-chloro-4- pytidyle-N-phenylurea) was studied on Anna apple trees at full bloom, 14 days after full bloom and two time spraying (at full bloom and 14 days after full bloom). CPPU tended significantly to increase the percentage of fruit set, yield and fruiting, while it decreased fruit drop of all treatments. The best results were obtained by 20 ppm CPPU at full bloom and 10 ppm CPPU two time spraying in the first season. While, the 15 pm CPPU at full bloom was the best during the second season. Highest fruit weight, fruit size and fruit dimensions were obtained by 15 ppm concentrations at 14 days after full bloom in the two seasons. Concerning fruit shape index (LID), an increase in fruit diameter than its length due to all conducted CPPU treatments in both seasons. As well as, acidity and TSS/acid ratio were significantly improved as a result of all studied treatments when compared to the control.

Summary in Arabic.

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