EVALUATION OF THE PRODUCTIVITY AND QUALITY OF ONION BULB GROWN IN SANDY SOIL USING SOME SAFE MATERIALS

Attia, Amro I. A.; Mohsen, A.A.M.; Zyada, H.G.; Bardisi, Enas A.

doi:10.21608/zjar.2025.465668

EVALUATION OF THE PRODUCTIVITY AND QUALITY OF ONION BULB GROWN IN SANDY SOIL USING SOME SAFE MATERIALS

Document Type : Original Article

Authors

Hort. Dept., Fac. Agric., Zagazig Univ., Egypt

10.21608/zjar.2025.465668

Abstract

A field experiment was conducted at a private farm in the El Saleheya El Gadida district of the Ismailia Governorate (Egypt) over the course of two consecutive winter seasons in 2023/2024 and 2024/2025 to assess the growth and productivity of onion plants Cv. Giza 20 under two stimulate (salicylic (SA) and ascorbic acids (AsA) at 100, 150, and 200 ppm for each) in addition to the control treatment (water spraying) under sandy soil conditions and a drip irrigation system. The results showed that ,foliar spraying with 150 ppm of AsA increased plant height , number of leaves per plant and vitamin C in the bulbs at harvest time, while foliar spraying with 200 ppm of SA enhanced the neck diameter, bulb diameter, and bulbing ratio, the dry weight of the leaves, bulbs, and dry weight of the plant, the concentrations of pigments in leaf tissues, the total absorption of nitrogen, phosphorus and potassium by the onion plant after 135 days of transplanting, which also led to an increase in the exportable and marketable yield, the total yield, the average bulb weight, and the quality of the bulbs, including total soluble solids, dry matter percentage, and the pungency (pyruvic acid) in bulbs.

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