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Economic evaluation of the effect of abnormal kiwifruit thinning on total yield of Actinidia deliciosa L. cv. Hayward vineyards
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Rasool Barzegar   , Mahmood Ghasemnezhad , Reza Esfanjari Kenari |
| University of Guilan |
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Abstract: (14 Views) |
Kiwifruit cv. Hayward is one of the main export crops from Iran. A considerable amount of fruits produced in each vine lose their export value due to being malformed. Therefore, in order to increase the percentage of exported fruits and income of kiwifruit growers, the present study was carried out as a randomized complete block design with four replications. Experimental treatments included thinning of all abnormal fruits in each vine, including small, flat, fanshape and misshapen fruits from the whole vine at four different times 15, 30, 45 and 60th days after fruit set. The results showed that the highest amount of premium fruit (extra grade) was observed in the thinning at 30th day after fruit set treatment with 7.47 kg per vine that showed 9.5 percent of the total yield. The results showed that the thinning treatment at the 15th day after fruit set with 60.27 kg and 78 percent grade I fruit, produced 24 percent more grade I fruits than the control (45.12 kg). In total, the results showed that thinning at different times had a significant effect on the amount of total revenue in each kiwifruit vine, so that the highest amount of total revenue was in thinning on the 30th and 15th days after fruit set with 18,987,535 and 18,955,662 Rials per vine that showed 11.72 and 11.53 percent more than the control (16,995,099 Rials), respectively.
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| Keywords: fruit thinning, total revenue, quality grading, yield |
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Type of Study: Research |
Subject:
Pomology
Received: 2023/10/26 | Accepted: 2024/07/18 | Published: 2026/01/31
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