Effect of seaweed extract on quantitative and qualitative characteristics and earliness of Khenizi date palm under the climatic conditions of Minab County

Document Type : Original Article

Authors

1 Expert of Agronomy and Horticulture Research,, Agricultural and Natural Resources Research and Education Station, Hormozgan,, Iran.

2 Head of Agricultural and Natural Resource of Research station, of Minab. Hormozgan, Iran.

3 Assistant Professor, Department of Agronomy and Plant Breeding, Minab Higher Education Complex, University of Hormozgan, Bandar Abbas, Iran.

4 Researcher, Kerman Agricultural and Natural Resources Research and Education Center, Kerman, Iran.

10.30466/rip.2025.55847.1334

Abstract

Date palm is one of the most important horticultural crops in Iran and holds a prominent position among agricultural products for export. To promote sustainable agriculture and the use of organic compounds, the present study was conducted to evaluate the effects of seaweed extract on the quantitative and qualitative characteristics and earliness of Khenizi date palm. The experiment was conducted in a completely randomized block design with three replications. The treatments included foliar application of 2% seaweed extract to the bunch, application to both leaves and bunches, and a control treatment without spraying. Following data analysis, significant differences were observed between the treatments and the control in traits including fruit weight, seed weight, fruit length, fruit diameter, fruit volume, Rutab earliness, and bunch yield. However, no significant differences were observed in total soluble solids and acidity. The results showed that application of seaweed extract to the leaves and bunches of Khenizi date palm resulted in the highest fruit weight (781.11 g), seed weight (0.93 g), fruit flesh weight (10.85 g), length (78.37 mm), diameter (27.13 mm), volume (81.377 mm²), and bunch yield (12.4 kg). The highest number of ripe Rutab fruits per tree was recorded in the fourth week under seaweed extract application to both leaves and bunches (67.62 Rutab fruits per tree). Overall, the application of seaweed extract to the leaves and bunches of Khenizi date palm played an important role in improving quantitative parameters and advancing Rutab maturity.

Keywords

References

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Research in Pomology
Volume 10, Issue 2
March 2026
Pages 33-42

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