Abstract— To investigate the salt resistance of Georgian endemic wheat species – Makha (Triticum aestivum subsp. macha (Dekapr. & Menabde) McKey) and Zanduri (Triticum timopheevii subsp. zhukovskyi (Menabde & Ericzjan) L. B. Cai) on the one hand, and the effect of pre-sowing irradiation on growth and development of the same species, on the other, experiments with 1.5% solutions of NaCl and Na2SO4 and pre-sowing treatment with ultraviolet irradiation (UV) (C section of the ultraviolet, distance 30cm from the source, irradiation for 1h) have been carried out. Wheat species were affected with stressors separately and in combination. The percentage of seed germination and length of 5-6 week seedlings was studied. Obtained results demonstrate that:
- Zanduri seeds are equally resistant to both chloride and sulfate salinization, while Makha seeds revealed more resistance to chloride salinization.
- Irradiation of Zanduri seeds with C section of UV-radiation inhibited germination, while treatment with the same spectrum of Makha seeds in contrary, led to significant activation of the process. This effect of seeds pre-sowing irradiation was maintained during the growth and development stages as well.
- Pre-sowing UV treatment of Makha seeds has canceled the inhibitory effect of NaCl on seed germination; while in variants with pre-sowing UV treatment and further processing with Na2SO4 and Na2SO4+NaCl even the stimulation of seed germination was mentioned.
- In order to increase the seed resistance to chloride and sulfate salinity, we consider it advisable to irradiate Makha seeds with UV before sowing; however, the optimal dose of radiation should be selected.
Keywords— chloride salinity, sulphate salinity, ultraviolet irradiation, wheat.
International Journal of Environmental and Agriculture Research (IJOEAR)
Digital Object Identifier DOI: 10.25125/agriculture-
WorldCat , Scilit, MDPI AG (Basel, Switzerland), Tyndale University College & Seminary, Indiana University,
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