Effects of Potassium Nitrate (KNO3) on Germination Properties of Maize (Zea mays indentata L.) Plant Under Salt Stress

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Germination, maize, potassium nitrate, salt stress


This study was carried out in 2022 in the Field Crops Laboratory of Ordu University Faculty of Agriculture in order to determine the effects of different salt (NaCl) and potassium nitrate (KNO3) applications on the germination properties of dent corn maize. Four different NaCl concentrations (0-100-200 and 400 mM) and four different KNO3 concentrations (0-0.5-1 and 2 mM) were applied to corn seeds. The experiment was established the factorial design in randomized plots with 3 replications. In the study, germination rate (%), average germination time (days), radicular fresh and dry weight (g), plumule fresh and dry weight (g), radicular length (mm) and plumule length (mm) values were calculated. As a result of the study, the effects of NaCl applications were significant at the level of 1% in all the examined properties, while the effect of KNO3 applications was significant at the level of 1% on germination rate, at the level of 5% on plumule length, and the effect on other examined properties was found to be insignificant. The effect of NaClxKNO3 interactions was significant at the 1% level on the germination rate, 5% on the average germination time, plumule length and radicle length, while the effect on other properties was insignificant. With the increase of NaCl doses, decreases occurred in all the examined properties, while decreases were observed in the inhibitory effect of NaCl with KNO3 applications. As a result of the regression analysis, it was determined that the highest decrease in the properties occurred at NaCl doses of 200 mM and above, and the plant was stressed at a dose of 200 mM in maize.


Amjad, M., Khurram, Z., Qumer, I., Iftikhar, A., Riaz, M.A., Saqib, Z.A. 2007. Effect of seed priming on seed vigour and salt tolerance in hot pepper. Pakistan Journal of Agriculture Science, 44(3): 408-414.

Bayuelo‐Jiménez, J.S., Craig, R., Lynch, J.P. 2002. Salinity tolerance of Phaseolus species during germination and early seedling growth.Crop Science, 42.5:1584-1594.

Chinnusamy, V., Jagendorf, A., Zhu, J. 2005. Understanding and improving salt tolerance in plants. Crop science, 45(2):437-448.

Demiroğlu, G., Khavalti, M.A., Avcıoğlu, R. 2001. Effect of different salt concentrations on the resistance of maize cultivars 2. some physiological characteristics and ion accumulation in early growt. Turkish Journal of Field Crops, 6(2): 55-60.

Duman, İ., Eser, B., Tozan, M. 2007. Soğan tohumlarında ozmotik koşullandırma amacı ile kullanılan havalandırılmış kolon tekniğinin ticari boyutlarda geliştirilmesi. Ege Üniversitesi Ziraat Fakültesi Dergisi, 44(1):1-14.

Farooq, M.,, Hussain, M., Wakeel, A., Siddique, K.H.M. 2015. Salt stress in maize: effects, resistance mechanisms, and management. A review. Agronomy for Sustainable Development, 35(2): 461-481.

Flowers, T. 2004. Improving crop salt tolerance. Journal of Experimental. Botany, 55: 307–319.

Giri, B., Giang, P.H., Kumari, R., Varma, A. 2005. Microbial diversity in soils. Microorganisms in soils: roles in genesis and functions. Springer, Berlin, Heidelberg, 19-55.

Goro, M.G., Sinha, V.B. 2020. Seed germination responses for varying KNO3 and NaNO3 stress in Trifolium alexandrinum. L cultivars. Biocatalysis and Agricultural Biotechnology, 25: 101618.

Guzmán, M., Olave. J. 2006. Response of growth and biomass production of primed melon seed (Cucumis melo L. cv. Primal) to germination salinity level and N-forms in nursery.

Matthews, S., Khajeh-Hosseini, M. 2007. Length of the lag period of germination and metabolic repair explain vigour differences in seed lots of maize (Zea mays). Seed Science and Technology, 35: 200-212

Munns, R. 2005. Genes and salt tolerance: bringing them together. New Phytologist. 167: 645–663

Öner, F., Kırlı, A. 2018. Effects of salt stress on germination and seedling growth of different bread wheat (Triticum aestivum L.) cultivars. Akademik Ziraat Dergisi, 7(2): 191-196.

Öner, F., Özkorkmaz, F., Yılmaz, N. 2018. Tuz stresi altında gibberellik asit uygulamalarının yulafta bazı çimlenme parametreleri üzerine etkisi. International Journal of Agricultural and Natural Sciences, 1(1): 33-35.

Öner, F., Şimşek Soysal, A.Ö. 2020. Determination of germination and seedling growth parameters of rice (Oryza sativa L.) varieties under stress conditions. Notulae Scientia Biologicae, 12(3): 693-701.

Özkorkmaz, F., Yılmaz, N. 2017. Farklı tuz konsantrasyonlarının fasulye (Phaseolus vulgaris L.) ve börülcede (Vigna unguiculata L.) çimlenme üzerine etkilerinin belirlenmesi. Ordu Üniversitesi Bilim ve Teknoloji Dergisi 7(2): 196-200.

Özkorkmaz, F., Yılmaz, N., Öner., F. 2020. Researching germination properties of bean (Phaseolus vulgaris L.) under polyethylene glycol osmotic stress and saline conditions. Akademik Ziraat Dergisi, 9(2): 251-258.

Pandita, V.K., Anand, A., Nagarajan, S. 2007. Enhancement of seed germination in hot pepper following presowing treatments. Seed Science. Technology. 35(2): 282-290.

Parida, A.K., Bandhu Das, A., 2005. Salt tolerance and salinity effects on plants: a review. Ecotoxicology and Eenvironmental Safety 60(3): 324-349.

Robledo, D.A.R. 2020. Effects of Halopriming on seed germination and seedling emergence of Capsicum frutescens. Journal of Botanty Research, 3(1): 114-118.

Sivritepe, N. 2008. Organic priming with seaweed extract (Ascophyllum nodosum) affects viability of pepper seeds. Asian Journal of Chemistry, 20(7): 5689.

Türkan, G. 2008. Bitki fizyolojisi. Palme Yayınları No. 455, s.690, Ankara



How to Cite

ÖZKORKMAZ, F., & ÖNER, F. (2022). Effects of Potassium Nitrate (KNO3) on Germination Properties of Maize (Zea mays indentata L.) Plant Under Salt Stress. ISPEC Journal of Agricultural Sciences, 6(4), 806–815. https://doi.org/10.5281/zenodo.7360709




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