Effect of ultraviolet radiation treatment to increase the ability of Gypsophila elegans Crimson to tolerate salinity | ||||
| Journal of Scientific Research in Science | ||||
| Volume 42, Issue 3, 2025, Page 132-152 PDF (572.73 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jsrs.2025.396369.1187 | ||||
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| Authors | ||||
Magdy Barsoom 1; Georgena Rizk2; Nermeen Elsayed Abdul-Moneem  1
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| 1Ornamental Plants and Landscape Gardening Research Department, Horticulture Research Institute, Agriculture Research Center, Giza, Egypt. | ||||
| 2Botanical Gardens Department, Horticulture Research Institute, A.R.C., Giza, Egypt | ||||
| Abstract | ||||
| This experiment was designed at the Horticultural Research Institute, Ornamental Department Nursery, in two consecutive years 2021-2022 and 2022-2023. The experiment was directed to improve the tolerance of Gypsophila elegans Crimson to salinity by planting gypsophila seeds after treating them with UV rays for 0, 1, 2 or 4 hours in seed growing beds, then they were transplanted after the seedlings became 8 to 10 cm long in pots. The plants were irrigated with water containing sodium chloride in concentrations of (0, 1000, 2000 or 4000 ppm). The experiment has proven that the treatment with ultraviolet ray had significant improvement in plant height, fresh and dry weight of plant, early flowering, enhanced floral traits and increased levels of chlorophyll (a and b), total carbohydrates and proline were observed with longer exposure periods, reaching the highest results after 2 hours of exposure compared to unexposed seeds. Exposure to UV treatments for plants treated with different salinity levels had a significant effect in improving all vegetative and floral traits, as treating seeds with UV rays for one or two hours before planting removed the harmful effect of salinity at a concentration of 1000 or 2000 ppm for most vegetative and floral traits and leaf content of chlorophyll (a and b) and carbohydrates in leaves with significant superiority for the two hours radiation. Gypsophila exhibits partial salinity tolerance; however, higher salinity levels reduce vegetative and floral traits, decrease chlorophyll (a and b) content, increase the proline accumulation in the leaves. | ||||
| Keywords | ||||
| Gypsophila elegans; ultraviolet radiation; plant quality; salinity | ||||
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