Productivity and Fruit Quality of Lime (Citrus aurantifolia L.) as Affected by GA3 and NAA Foliar Spray

Document Type : Original Article

Author

Department of Horticulture, Fac. of Agriculture, Suez Canal University, Ismailia, Egypt

Abstract

A field trial was achieved during 2018 and 2019 seasons on 9-years old Balady lime trees, to study the effect of spraying gibberellic acid (GA3) and naphthalene acetic acid (NAA) at 10, 20 and 30 ppm three times each year on yield and fruit physical and chemical properties of the fruit, grown in sandy reclamation soil located at Cairo-Alexandria desert road (60 Km from Cairo city), Egypt. A gradual yield increment was observed, physical and chemical properties of Balady lime fruits were improved the two growth regulators concentration from 0.0 to 30 ppm. Meaningless stimulation was detected among the two higher concentrations of GA3 and NAA namely 20 and 30 ppm. The best results with regard to yield, fruit physical and chemical properties of Balady lime obtained when the trees were sprayed with GA3 combined with NAA each at 20 ppm.

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