INFLUENCE OF FOLIAR SPRAY OF SALICYLIC ACID, FULVIC ACID AND BIO-FERTILIZER ON GROWTH, YIELD AND QUALITY OF GRAPEVINE CV. TAIFI

Authors

  • Hussein Mamo Suliman College of Agriculture Engineering Sciences, University of Duhok
  • Shawkat Mustafa Mohammed Al-Atrushy College of Agriculture Engineering Sciences, University of Duhok

DOI:

https://doi.org/10.36103/zwjjfx92

Keywords:

Vitis vinifera L., Taifi, quality, mycorrhizae, foliage application

Abstract

The experiment was carried out at the private vineyard located in Duhok Governorate, Bare-Buhar village Kurdistan region-Iraq, during growing season (2024) to investigate the influence of foliar spraying of three levels, (0, 200 and 400 mg.L-1) Salicylic acid, three levels (0,3 and 6 mg.L-1) of Fulvic acid, spraying was conducted at April and May and Bio-fertilizer (mycorrhiza) applied by soil at three amounts (0, 50 and 100 g.vine-1), once per season (before bud burst) and their interaction on green parts, yield, physical , chemical characteristics on Taifi grapevine cv. irrigated with a drip irrigation. The vines were 10 years old, trained with T-Trills, and vines pruned in the second week of March by leaving four renewal spurs, each with two eyes, and eight fruiting canes, each with seven eyes. The inter-row spacing of these vines was 2.5 × 2.5 m. There were 81 experimental units in all due to the three replications and 27 treatments in the experiment. One vine was used as the experimental unit of a factorial study carried out in an RCBD with three replications. The obtained results indicated that every trait like total chlorophyll, leaf area, number of clusters per vine-1 and yield per vine-1 as well as vitamin C in berries juice were significantly increased as compared with control, while Nitrate % in berries juice was reduced by all treatments as compared with control. The combination between high concentrations of Salicylic acid, Fulvic acid and Bio-fertilizer were improved all traits in compares with control.

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Published

2026-08-31

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How to Cite

Suliman , H., & Al-Atrushy, S. (2026). INFLUENCE OF FOLIAR SPRAY OF SALICYLIC ACID, FULVIC ACID AND BIO-FERTILIZER ON GROWTH, YIELD AND QUALITY OF GRAPEVINE CV. TAIFI. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 57(8), 2174-2185. https://doi.org/10.36103/zwjjfx92