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Egyptian Journal of Aquatic Biology and Fisheries
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et al., A. (2024). Effect of Foliar Spraying of the Alga Cladophora glomerata Extract on Some Vegetative Characteristics and Chemical Contents of Hydroponically Grown Lettuce Plants. Egyptian Journal of Aquatic Biology and Fisheries, 28(5), 11-23. doi: 10.21608/ejabf.2024.377584
Al-mayyahi et al.. "Effect of Foliar Spraying of the Alga Cladophora glomerata Extract on Some Vegetative Characteristics and Chemical Contents of Hydroponically Grown Lettuce Plants". Egyptian Journal of Aquatic Biology and Fisheries, 28, 5, 2024, 11-23. doi: 10.21608/ejabf.2024.377584
et al., A. (2024). 'Effect of Foliar Spraying of the Alga Cladophora glomerata Extract on Some Vegetative Characteristics and Chemical Contents of Hydroponically Grown Lettuce Plants', Egyptian Journal of Aquatic Biology and Fisheries, 28(5), pp. 11-23. doi: 10.21608/ejabf.2024.377584
et al., A. Effect of Foliar Spraying of the Alga Cladophora glomerata Extract on Some Vegetative Characteristics and Chemical Contents of Hydroponically Grown Lettuce Plants. Egyptian Journal of Aquatic Biology and Fisheries, 2024; 28(5): 11-23. doi: 10.21608/ejabf.2024.377584

Effect of Foliar Spraying of the Alga Cladophora glomerata Extract on Some Vegetative Characteristics and Chemical Contents of Hydroponically Grown Lettuce Plants

Article 2, Volume 28, Issue 5, September and October 2024, Page 11-23  XML PDF (521.76 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2024.377584
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Author
Al-mayyahi et al.
Abstract
The experiment was conducted in Al-Diwaniyah Governorate, Iraq, during the 2022-2023 agricultural season (three months) on lettuce (Lactuca sativa var. capitata). The study aimed to investigate the effect of spraying lettuce plants with an algal extract from Cladophora glomerata, isolated from a stream at the University of Al-Qadisiyah, at concentrations of 2 and 4g/ L. Results indicated an increase in vegetative growth characteristics, including plant height, number of leaves, fresh weight, and total leaf area, with the highest averages being 20.66cm, 24 leaves, 135g, and 5260.26cm², respectively. Additionally, chemical content characteristics such as carbohydrates, vitamin C, total nitrogen, phosphorus, sulfur, and iron showed mean values of 1.6%, 4.12mg/ 100g fresh weight, 3.72%, 0.25%, 72.45mg/ g dry weight, and 1.32%, respectively, when treated with 4g/ L of algal extract. In comparison, control plants showed the lowest values. Treatment with 2g/ L of algal extract resulted in higher mean values for dry weight, total chlorophyll, carotenoids, protein, vitamins A and K, potassium, zinc, calcium, and fiber, with values of 11.64g, 1.89mg/ g, 0.21%, 1.39%, 200.72mg/ 100g fresh weight, 108.47mg/ 100g fresh weight, 1.2%, 2.94mg/ 100g fresh weight, 60.9mg/ 100g, and 1.6%, respectively, compared to the control plants. Statistical analysis revealed significant differences (P≤ 0.05) between all parameters, except for plant height and iron, where the differences were not significant among the experimental treatments.
Keywords
Algae; Cladophora glomerata; Hydroponics; Lettuce
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