Incidence of temperature-related abiotic diseases in Spanish garlic bulbs

• Published in: Plant protection science Vol. 38; no. SI 2 - 6th Conf EFPP; pp. 696 - 699
• Main Authors: Cabrera, J., López-Bellido, F.J., Recio, D., Alía, J.M., Serrano, M., Verdejo, C.
• Format: Journal Article
• Language: English
• Published: Czech Academy of Agricultural Sciences 31.12.2002
• Subjects: garlic; physiopathies; rough; temperature
• ISSN: 1212-2580; 1805-9341
• DOI: 10.17221/10593-PPS

Several alterations of growth physiology and bulb formation in garlic (Allium sativum L.) crops, such as "rough" and "burst" bulbs, have been related by different authors with low temperatures during bulbs storage and crop development. These physiopathies affect both the yield and the quality of garlic crops. Incidence of such diseases in Spanish garlic (variety "purple of Las Pedroñeras") were studied during two consecutive years. Experimental design was factorial taking the bulb storage temperature (5°, 10°, 15° and 20°C) as variable factor. Growth indexes during crop development and final quantity of defective bulbs were evaluated. Experimental results show significant differences between treatments, with the higher incidence of both physiopathies in those bulbs stored at 5°C. The 15°C and 20°C storage temperatures clearly reduce the risk of these abiotic diseases and tend to increase the yield and the final quality of the crop.