The effect of salt stress on the germination of maize (Zea mays L.) seeds and photosynthetic pigments

Authors

  • Sali ALIU University of Prishtina, Faculty of Agriculture, Department of Crop Science, Prishtina, Kosovo
  • Imer RUSINOVCI University of Prishtina, Faculty of Agriculture, Department of Crop Science, Prishtina, Kosovo
  • Shukri FETAHU University of Prishtina, Faculty of Agriculture, Department of Crop Science, Prishtina, Kosovo
  • Bekim GASHI University of Prishtina, Faculty of Natural Science, Department of Biology, Prishtina, Kosovo
  • Emilija SIMEONOVSKA The Faculty of Agriculture Science and Food, Skopje, Macedonia
  • Ludvik ROZMAN University of Ljubljana, Biotechnical Faculty, Ljubljana, Slovenia

DOI:

https://doi.org/10.14720/aas.2015.105.1.09

Keywords:

zea mays, maize, soil salinity, site factors, stress, chemicophysical properties, seeds, germinability, genotypes, varieties, photosynthesis, pigments, carotenoids, chlorophyll

Abstract

The objective of this study was to investigate the effect of salinity stress on seed germination and chlorophyll content in maize. In the study, two maize hybrids were included (Bc 678 and Bc 408) originating from the Bc Institute at Rugvica near Zagreb (Croatia) and two maize populations (LMP-1 and LMP-2) originating from Kosovo. The experiment was conducted in four replicates of 100 seeds, which were germinated on top of double-layered papers, each with 10 ml of salt solution of NaCl and CaCl2 in Petri dishes. Germinated seeds were counted every 24 h for 15 days. The photosynthetic pigments, chlorophylls ‘a’ and ‘b’ as well as carotenoids were extracted with 80 % acetone. Chlorophyll and carotenoid contents were calculated using absorbance values at 662, 644 and 440 nm. The effects of the NaCl and CaCl2 concentrations accounted for a high proportion of the variance in all analyses. The results showed that both germination percentage and germination index decreased significantly in all cultivars at the highest salt concentrations. The significant differences between different concentrations of salinity were also found in all cultivars for the content of chlorophyll ‘a’ and ‘b’ and for the content of carotenoids.

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Published

26. 11. 2015

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Section

Agronomy section

How to Cite

ALIU, S., RUSINOVCI, I., FETAHU, S., GASHI, B., SIMEONOVSKA, E., & ROZMAN, L. (2015). The effect of salt stress on the germination of maize (Zea mays L.) seeds and photosynthetic pigments. Acta Agriculturae Slovenica, 105(1), 85–94. https://doi.org/10.14720/aas.2015.105.1.09

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