Pre-sowing treatment of vetch hairy seeds, viсia villosa using ultraviolet irradiation

BACKGROUND AND OBJECTIVES: Aiming to increase crop yield the antimicrobial/bacterial or fungicidal pre-sowing seed treatment received more attention in modern agronomy. Ultraviolet-C irradiation of pre-sowing seeds is an environmentally friendly method that became of great importance in recent years. It is, hereafter, being shown that, along with known antimicrobial use, there is additional important advantage of Ultraviolet-C irradiation of pre-sowing seeds. It was revealed that Ultraviolet-C radiation on Vetch Hairy seeds stimulates seeds germination and vigour. METHODS: Various doses of Ultraviolet-Cirradiation of seeds were used. The main sowing qualities of seeds were determined: seed vigour and germination, as well as the content of photosynthetic pigments in plant leaves and the main parameters of the kinetic values of hydration – moisture and hydration rate. FINDINGS: It was found that ultraviolet-C radiation has a positive effect on sowing qualities and content of photosynthetic pigments in plant leaves of Vetch vary. The most effective dose of ultraviolet irradiation applied to vetch hairy seeds; vicia villosa was ۱۰۰۰ J/m۲. At this dose the seed vigour increases by ۲۳.۶%, germination by ۱۵.۱%, the mass of germinated seeds by ۱۷.۳%, the content of a- and b-chlorophyll by ۱۲.۴%, and ۱۷.۵%, respectively, the carotenoid content increased by ۱۳.۹%. The parameters of seeds hydration kinetics such as moisture content and hydration rate were determined. It was revealed that the hydration rate of seeds increased significantly in the first ۱۰۰-minute time range. Later in time the hydration rate progressively decreased, achieving a saturated moisture content after ۷۰۰ minutes. Additionally, it was found that Ultraviolet-C irradiation decreases the imbibition damage. CONCLUSION: The results indicated that ultraviolet-C irradiation has a positive effect on sowing qualities of Vetch Hairy seeds, thus, could be proposed as a promising candidate for application in treatment pre-sowing agriculture seeds. ==========================================================================================COPYRIGHTS©۲۰۲۱ The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY ۴.۰), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers.========================================================================================== 

کلیدواژه ها:

Pre-sowing treatment ، germination ، Hydration rate ، Moisture content ، Seed vigour ، ultraviolet irradiation (UV-C radiation)