EFFECT OF STORAGE PERIOD AND CONTROLLED TEMPERATURES ON INFECTION POTENTIAL, FOOD CONSUMPTION, DAMAGE AND WEIGHT LOSSES OF COWPEA AND FABA BEAN SEEDS INFESTED WITH CALLOSOBRUCHUS MACULATUS (F.) | ||||
Egyptian Journal of Agricultural Research | ||||
Article 6, Volume 83, Issue 2, July 2005, Page 595-608 PDF (3.55 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.2005.244920 | ||||
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Authors | ||||
FERIAL M. A. EL-SAYED1; MOHAMED A. M. ALY2; HAMODH M. I. EL-BISHLAWY1 | ||||
1Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt | ||||
2Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt | ||||
Abstract | ||||
Laboratory experiments were conducted to assess infection potential of C. maculatus (F.) (Coleoptera : Bruchidae) on four cowpea and faba bean varieties stored for 6 months. Infestation rates, loss in seeds weight and number of emerged beetles were the criteria used to assess the vulnerability of cowpea and faba bean to post-harvest Infestation. Cowpea local variety and faba bean Giza 843 showed a slight degree of resistance to insect infestation, therefore they can be stored safely for a relatively long period (6 months) with lowest rates of infestation and weight losses of stored seeds. The effect of store controlled temperatures 25°, 30° and 35°C 2°C on seed consumption, seed damage and losses of different cowpea and faba bean varieties was investigated. Results revealed that all the former parameters significantly (P > 0.05) decreased by the increase of store temperature. So, high temperature of 35°C or above can be used as an environmental element to store cowpea and faba bean seeds safely with the least damaged and losses of stored seeds for approximately 6 months. | ||||
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