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Plant Pathology Journal
  Year: 2003 | Volume: 2 | Issue: 1 | Page No.: 28-38
DOI: 10.3923/ppj.2003.28.38
 
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Impact of Gamma Irradiation Stresses I. Response of Gamma-irradiated Sugarbeet Seeds to Infection by Soil-borne Fungal Pathogens

Mohamed A. Rizk and Tarek A. A. Moussa

Abstract:
Sugarbeet seeds of cultivars Raspoly, Kawemira and Farida were subjected to different gamma irradiation doses (0.0, 0.5, 1.0, 2.0 and 4 kGy) and the response of these cultivars to infection by Rhizoctonia solani, Sclerotium rolfsii and Fusarium oxysporum was studied. The lower doses of gamma irradiation (0.5 and 1.0 kGy) significantly increased the emergence, plant length and dry weight of sugarbeet seedlings in the three cultivars but the higher doses (2.0 and 4.0 kGy) have adverse effect on the emergence of seedlings. The infection rate was significantly decreased with increased the gamma irradiation doses. The TRV was significantly increased in the three sugarbeet cultivars with increased the gamma doses, while the DRV was significantly decreased with increased gamma doses.
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How to cite this article:

Mohamed A. Rizk and Tarek A. A. Moussa , 2003. Impact of Gamma Irradiation Stresses I. Response of Gamma-irradiated Sugarbeet Seeds to Infection by Soil-borne Fungal Pathogens. Plant Pathology Journal, 2: 28-38.

DOI: 10.3923/ppj.2003.28.38

URL: https://scialert.net/abstract/?doi=ppj.2003.28.38

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