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Bulb Storability and Thrips Tolerance of Some Onion Genotypes in Non-Controlled Storage
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Abdul sattar Darabi   |
| Agricultural Research Organization |
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Abstract: (735 Views) |
This experiment was conducted for two years to study post–harvest bulb losses of onion genotypes in uncontrolled storage (no heating, cooling and ventilation systems) at Behbahan Agriculture Research Station. Seeds were sown in nursery in early October and seedling transplanted at 2-3 leaf stage. Bulbs were harvested when 50-80% of foliage top had fallen and collapse. The research was performed using split factorial experiment based on RCBD including 120 treatments with 3 replications. Main plot consisted of six bulbs observation in storage (one months after storage with one month interval). Sprayed and non-sprayed plots and ten onion genotypes named Behbahan, Padook, Ramhormoz, Iranshahr, Borazjan ,Dorcheh Esfahan, and Kamerei Khomain landraces, Primavera and Texas early grano cultivars and improved population of Behbahan onion were considered as factorial. Thrips increased bulb weight losses, damage of black mould and total losses. The damage of bulb rotting decreased in non- sprayed plots as compared with sprayed plats. The effect of thrips was not significant on bulb sprouting. The minimum bulb weight losses and damage of black mould were recorded in Primavera cultivar and Behbahan improved population respectively. The lowest bulb rotting was observed in Ramhormoz landrace. The highest bulb sprouting was found in Iranshahr landrace. According to results, Texas early grano cultivar and Dorche Esfahan landrace, showed the maximum and minimum bulb storability respectively.
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| Keywords: Black mould, Landrace, Physiological bulb weight losses, Rotting, Sprouting |
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Full-Text [PDF 488 kb]
(75 Downloads)
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Type of Study: Applicable |
Subject:
Postharvest physiology
Received: 2021/05/31 | Accepted: 2022/12/4 | Published: 2024/05/19
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