The physiological effect of foliar spray with iron and ascorbic acid on growth and production of nectarine trees cv. May crest

Yahya Yosof *1 and Mohammad Nizam1

1Administration of horticulture, General Commission for scientific Agriculture Research, Syria.

(*Corresponding author: Dr. Yahaya Yosof, E-Mail:yosof@gmail.com).

Received: 24/ 04/  2024     Accepted: 4/ 08/ 2024

Abstract

The experiment was carried out during the year 2022-2023 in (Shas village / Tartous Governorate) in an orchard planted with 8-year-old May Crust peach trees to study the effect of smart nutrition with iron compounds (iron chelate Fe-EDTA 13%, hydrous ferrous sulphate Feso4,7H2o) and ascorbic acid. In the production of the peach tree and the quality of the fruits produced from it, I was affected by the partial partial experience of the number of commercial contracts 6 away from within it, near the witness (learning spray). All you need consists of three replicates and each replicate contains three companies. A specific sample of iron and ascorbic acid was used at a concentration of (500 mg/L) each, and they were used alone or in combination. It was concluded that the results of careful division of leaves were superior to the control in terms of vegetative or fruitful indicators, as well as fruits.The best treatment for the length of the packages is the treatment of the mixture (ferrous sulphate + ascorbic acid), which came in a diameter of (75.17 cm). As for the number of leaves, the best treatments were iron chelates, which amounted to (91) leaves/new growth. As for the physical characteristics, the best parameter in terms of number of fruits was ascorbic acid, which amounted to 444.67 fruits/tree, and in terms of fruit weight and fruit hardness, the best was (ferrous sulphate + ascorbic acid), which reached 79.53 g and 1.23 kg/cm2, respectively. As for the chemical specifications of the fruits, the best variants of total sugars (Ts) were treated with a mixture (ferrous sulphate). aqueous + ascorbic acid) and for the total materials treated with flox (iron chelate + ascorbic acid)
Keywords: peaches, leaf spray, iron chelate, ferrous sulfate aqueous, ascorbic acid.

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