ArticleSaudi journal of biological sciences2022
Effect of foliar application of amino acid, humic acid and fulvic acid on the oil content and quality of olive.
Article in Saudi journal of biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 40 citations in OpenAlex.
- Cultivar dependent responses of olive (Olea europaea L.) to foliar fertilization in fruit quality and mineral composition of leaves and fruits.Scientific reports · 2026Article
- Investigation of Quality Enhancement Mechanisms in Tenobe Somen Noodles During Storage and Maturation.Foods (Basel, Switzerland) · 2025Review
- Humic acid and grafting as sustainable agronomic practices for increased growth and secondary metabolism in cucumber subjected to salt stress.Scientific reports · 2024Article
- Amino Acids Biostimulants and Protein Hydrolysates in Agricultural Sciences.Plants (Basel, Switzerland) · 2024Review
- Spraying humic acid regulator on cultivatedFrontiers in plant science · 2024Article
- Biomass composite with exogenous organic acid addition supports the growth of sweet sorghum (Frontiers in plant science · 2023Article
- The coastal fog and ecological balance for plants in the Jizan region, Saudi Arabia.Saudi journal of biological sciences · 2023Article
- Fertilizers and Fertilization Strategies Mitigating Soil Factors Constraining Efficiency of Nitrogen in Plant Production.Plants (Basel, Switzerland) · 2022Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Olives are evergreen trees with a low growth rate that are cultivated in semi-tropical climates. The biochemical properties of three olive cultivars were explored under the foliar application of amino and organic acids in a two-factor factorial experiment based on a randomized complete block design with three replications in Rudbar County, Iran. The first factor was assigned to olive cultivar ('Zard', 'Arbequina', and 'Manzanilla') and the second factor to the foliar application of organic acids at 9 levels of control, arginine, glutamine, humic acid, fulvic acid, arginine + humic acid, arginine + fulvic acid, glutamine + humic acid, and glutamine + fulvic acid. The recorded traits included the Brix value, content of oil, protein, chlorophyll, carotenoid, anthocyanins, phenols, and the activity of antioxidant enzymes. The Results showed that cv. 'Zard' had the highest Brix value, fruit protein content, carotenoid, anthocyanins, and phenols, and cv. 'Arbequina' had the highest oil fraction. The Results of the simple effects of organic acids revealed that the trees treated with arginine + humic acid had the highest fruit protein content and total chlorophyll, and those treated with humic acid had the highest anthocyanin and phenol contents. Data on the interaction of 'cultivar × organic acids' showed that 'Arbequina × glutamine' had the highest oil content, 'Manzanilla × fulvic acid' and 'Manzanilla × glutamine + fulvic acid' had the highest fruit protein content, 'Zard × humic acid' had the highest phenol content, 'Arbequina × arginine' had the highest superoxide dismutase activity, and 'Arbequina × glutamine + fulvic acid' had the highest peroxidase activity. Finally, it can be concluded that Arbequina cultivar produced the most oil when foliar sprayed with glutamine.
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