Journal
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
Volume 12, Issue 1, Pages 393-402Publisher
ELSEVIER
DOI: 10.1080/16878507.2019.1680188
Keywords
X-ray irradiation; germination; growth enhancement; enzymatic antioxidant; glutathione
Funding
- Deanship of Scientific Research, King Faisal University, Saudi Arabia [150035]
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The objective of this research was to examine the response of different X-ray doses to two okra genotypes, Hassawi okra and the commercial Clemenson genotype on germination and biochemical analysis. The two genotypes of the okra were subjected to various X-ray doses (0-100 Gy). The findings have been shown that the low doses of X-ray up to 5 Gy caused a significant increase in all morphological criteria, total pigment, enzymatic (ascorbic acid, glutathione, and anthocyanin) and nonenzymatic antioxidants (ascorbate peroxidase, catalase, and superoxide dismutase) in the two okra genotypes as compared with untreated plants. On the other side, the high doses of X-ray above 5 Gy considerably decreased all the above parameters and significantly increased lipid peroxidation and oxidative damage (hydrogen peroxide and superoxide anion) in the two okra genotypes as compared with untreated plants. In conclusion, the low doses of X-ray caused stimulation effect and may be used to improve plant growth and alleviate the stress effects. Okra Hassawi genotype is more sensitive to X-ray than the other genotype.
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