Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.
Abdelzaher, R., Nassar, S., Ali, S., Maged, S., El-Shaieb, F. (2025). Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.. EKB Journal Management System, 3(6), 74-92. doi: 10.21608/hrj.2025.452476
Rania. A.E. Abdelzaher; Said. A. Nassar; Sadam. H. Ali; Safaa. M. Maged; Faisal El-Shaieb. "Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.". EKB Journal Management System, 3, 6, 2025, 74-92. doi: 10.21608/hrj.2025.452476
Abdelzaher, R., Nassar, S., Ali, S., Maged, S., El-Shaieb, F. (2025). 'Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.', EKB Journal Management System, 3(6), pp. 74-92. doi: 10.21608/hrj.2025.452476
Abdelzaher, R., Nassar, S., Ali, S., Maged, S., El-Shaieb, F. Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.. EKB Journal Management System, 2025; 3(6): 74-92. doi: 10.21608/hrj.2025.452476

Influence of Deficit Irrigation and Absorbent Materials on “Hass” Avocado Cv.: A- Vegetative Growth, Yield and Fruit Quality.

Horticulture Research Journal
Volume 3, Issue 6, September 2025, Pages 74-92    PDF (1.34 M)
Document Type: Original Article
DOI: 10.21608/hrj.2025.452476
Authors
Rania. A.E. Abdelzaher1; Said. A. Nassar1; Sadam. H. Ali2; Safaa. M. Maged3; Faisal El-Shaieb1
1Tropical Fruit Researches Department, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.
2Tropical Fruit Researches Department, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
3Deciduous Fruit Research Department, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.
Abstract
Avocado (Persea americana Mill.) is a globally important fruit crop, with the 'Hass' cultivar being the most widely cultivated. Water scarcity threatens the sustainability of avocado production in arid and semi-arid regions. During (2023–2024) field study was established to evaluate the effects of two soil absorbent materials biopolymer and zeolite applied at 500, 1000, and 1500 g/tree under three regulated deficit irrigation regimes (100%, 80% and 70% of irrigation requirements, IR) on vegetative growth, yield and fruit quality of “Hass” avocado. A split plot design with three replicates was used. Both amendments significantly improved shoot growth, leaf area and relative water content compared to control treatment, particularly under moderate deficit irrigation (80% IR). High dose applications (1500 g/tree) of either biopolymer or zeolite maximized yield (up to 30% over control) under full irrigation, and mitigating yield losses under severe deficit. Fruit quality parameters including weight, size, total leaf carbohydrates content, and oil concentration were consistently enhanced by amendment application. The results demonstrate that integrating high dose water retentive amendments with optimized deficit irrigation can sustain vegetative growth, yield and fruit quality in avocado orchards facing increasing water limitations.
Keywords
Persea americana Mill; biopolymer; zeolite; deficit irrigation; vegetative growth
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