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REFERENCES Ahmed, A.K., Johnson, K.A., Burchett, D. & Kenny, B.J. (2006). The effects of heat, smoke, leaching, scarification, temperature and NaCl salinity on the germination of Solanum centrale (the Australian bush tomato). Seed Sci.Technol. , 34(1): 33-45. Amin, R., Khan, A.Z., Muhammad, A., Khalil, S.K., Gul, H., Daraz, G., Akbar, H. & Ghoneim, A.M. (2016). Influence of seed hardening techniques on vigor, growth and yield of wheat under drought conditions. Journal of Agricultural Studies , 4 (3): 121-131 Ashraf, M. & Foolad, M.R. (2005). Presowing seed

Abstract

Due to the fact that wheat varieties are different, they also have different temperature requirements. The present paper aims to find the most suitable seedlings that can germinate in an area with climatic conditions well below the optimum for germination of seeds. The observed temperatures were between 0 °C and 5 °C for the studied wheat varieties. The varieties analyzed were Miranda, Boema 1, Litera, autumn wheat varieties, created in our country.

The research was carried out by the controlled exposure method at low temperatures under laboratory conditions. During the study, the most important characteristics that can confirm the quality of seed material, namely germinative energy and faculty, were followed. Besides, we have also analyzed the elements of seed vigor, namely the length of the coleoptile, the root length and the weight of the germ, because I consider that these are key factors in determining the quality of the seeds.

The results obtained showed that low temperatures influenced moderately to strongly seeds germination capacity as well as the elements of vigor.

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References Budagovsky, V. I. (1976). Growing of low-vigour fruit trees [Будаговский, В. И. Культура слаборослых плодовых деревьев]. Moscow, Kolos, 304 с. Hiirsalmi, H., Säkö, J. (1991). Developing cold-tolerant fruit cultivars in Finland. HortScience, 26 (5), 504-507 Hovi, T., Karhu, S., Linna, M.-M., Suojala, T. (2002). Fruit varieties released by MTT Agrifood Research Finland. Harvest: Horticultural results 2000-2002. MTT: Selvityksiä 42, 102. Karhu, S., Kinnunen, H., Rantanen, M., Haikonen, T. (2016). Breeding of apple at MTT Agrifood Research Finland

evaluation for seedling emergence and vigor. Crop Sci. , 2: 176-177. http://dx.doi.org/10.2135/cropsci1962.0011183X000200020033x Metraux J.P. (2001) . Systemic acquired resistance and salicylic acid: current state of knowledge. Eur. J. PlantPathol., 107: 13-18. Miar Sadeghi, S., Shekari, F., Fotovat, R. & Zangani, A. (2010). Effect of salicylic acid on vigor and growth of canola seedlings under water stress. Plant Biol. , 6, p. 55. Musa, A.M., Johansen, C., Kumar, J. & Harris, D. (1999). Response of chickpea to seed priming in the High Barind Tract of Bangladesh

on carrot seed vigour and germination. Ecol Chem Eng S. 2010;17(1):53-61. https://drive.google.com/file/d/1IfsFlFVf3-2vO1OlkNuu09220UjUAwWs/view . [21] Racuciu M, Creanga DE. Biological effects of low frequency electromagnetic field in Cucurbita pepo. Proceedings of the Third Moscow Int Symp Magnetism. 26-30 June 2005, Moscow, Russia. 2005;278-82. http://magn.ru/proc/pdf/278.pdf . [22] Pietruszewski S, Muszyński S, Dziwulska A. Electromagnetic fields and electromagnetic radiation as non-invasive external stimulants for seeds (selected methods and responses). Int

: 255-259. Panayotov N., 2005. Technological management and factors influencing seed quality of vegetable crops. In: Vegetables: Growing Environment and Mineral Nutrition. D. Ramdane (ed.). WFL Publisher, Helsinki, Finland: 138-165. Panayotov N., Stoeva N., 2009. Influence of the maturity on the sowing quality and vigour of the carrot seeds. Scientific Work of the Agricultural University, Plovdiv, LXV: 93-98. Pereira R.S., Nascimento W.M., Vieira J.V., 2008. Carrot seed germination and vigor in response to temperature and umbel orders. Sci. Agric. 65: 145

REFERENCES A bdual -B aki A.A., A nderson J.D., 1973: Relationship between decarboxilation of glutamic acid and vigour in soybean seed. – Crop Science, 13: 222–226. A shraf M., F oolad M.R., 2005: Pre-sowing seed treatment – a shotgun approach to improve germination, plant growth, and crop yield under saline and non-saline conditions. – Advances in Agronomy, 88: 223–271. A shraf M.Y., A khtar K., H ussain F., I qbal J., 2006: Screening of different accessions of three potential grass species from Cholistan desert for salt tolerance. – Pakistan Journal of

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-98. Klein J.D., Wood L.A., Geneve R.L., 2008. Hydrogen peroxide and color sorting improves germination and vigor of eastern gamagrass (Tripsacum dactyloides) seeds. Acta Hortic. 782: 93-97. Łacicowa B., Filipowicz A., Wagner A., 1979. The fungi pathogenic for Zinnia elegans L. Acta Mycol. 15(1): 11-20 (In Polish). Łacicowa B., Kiecana I., Pięta D., 1991. Mycoflora of ornamental plants seeds. I. Mycoflora of zinnia (Zinnia elegans L .) a nd s weet p ea s eeds (Lathyrus odoratus L.). Rośliny Ozdobne, Prace ISiK, Seria B 16: 109-116 (In Polish) Lehrer R.I., 1969. Antifungal