Abstract— Estimated dates loss at harvest time include shees & besr, eating by birds, falling, insects and dust mite, and healthy fruits of three cultivars from the date palm orchards in al-Ahsa Oasis (Khalas, Shishi and Ruzeize), in Al-Qaseem (Sukkary, Khudry and Segae), in Madinah (Safawi, Anbara, Ajweh). In Riyadh (Khalas, Sagei and Nabtet Seif). The highest losses during harvest time in Al-Ahsa were in Khals, then comes Shishi then Ruzeize. In Qaseem, the least affected variety was Sukkari, then Khudri then Segae. In Medina, Anbara was the most affected variety then comes Safawi then Ajweh. In Riyadh, the most affect variety was Nabtet Seif then comes Khalas then Segae. The average level of loss during the marketing phase was about 5-10 % in most varieties and locations except Ajweh in Riadh (<5%), and Shagra in Qassem (16-20%). The major causes of waste were the dates’ small size, and cuts and browses.
Photography analysis showed that dates are dramatically affected by various pest infestation and non-pathological disorders. The average of general dates disorders or dates damages was 12.6%, which represents the percentage of dates loss of most commonly ones in the major date production regions in Saudi Arabia. In addition, eleven dates variety commercially available were collected at Alahsa dates retail market which produced by the major production regions; Alahsa, Riyadh, Qaseem and Madina. The data showed that the average of general dates disorders or dates damage were the highest for Shishi and Shbibi in AlAhsa (33%), while the lowest was for Ajweh in Medina (2.7% only).
Keywords— Post-Harvest Loss, Waste, Date Palms, Kingdom of Saudi Arabia, harvest time.
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