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Vegetable Crops Research Bulletin

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The Alleviation Effect of Silicon on Seed Germination and Seedling Growth of Tomato Under Salinity Stress

Maryam Haghighi
  • Horticulture Department, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Zahra Afifipour / Maryam Mozafarian
Published Online: 2012-08-30 | DOI: https://doi.org/10.2478/v10032-012-0008-z

The Alleviation Effect of Silicon on Seed Germination and Seedling Growth of Tomato Under Salinity Stress

This study was conducted to evaluate the effectiveness of silicon (Si) application under salinity levels on seed germination and growth characteristics of tomato seeds. A laboratory experiment was performed on completely randomized design with two levels of salinity (25 and 50 mM NaCl) and 2 concentration of Si (1 and 2 mM) with 4 replications. Germination percentage, germination rate, seedling shoot and root length, fresh and dry weight of seedling and mean germination time was measured. Seed germination of Lycopersicon esculentum L. was significantly affected by salinity levels, Si and their interaction. Germination characteristics of tomato seeds decreased drastically by increasing NaCl concentrations. However, 1 mM Si had positive effects on seed germination characteristics and improved germination percentage, germination rate and mean germination time. Si alleviated the harmful effect of salinity stress on tomato seed germination at almost all germination characteristics.

Pozytywny Wpływ Krzemu Na Kiełkowanie Nasion I Wzrost Siewek Pomidora W Warunkach Stresu Zasolenia

Badania przeprowadzono w celu oceny skuteczności stosowania krzemu (Si) w warunkach zasolenia na kiełkowanie nasion i cechy wzrostu siewek pomidora. Wykonano doświadczenie laboratoryjne w układzie kompletnie losowym z dwoma poziomami zasolenia (25 i 50 mM NaCl) i dwoma stężeniami Si (1 i 2 mM) w 4 powtórzeniach. Określano procent kiełkowania, zdolność kiełkowania, długość pędu i korzenia siewek, świeżą i suchą masę siewek oraz średni czas kiełkowania. Na kiełkowanie nasion Lycopersicon esculentum L. w istotny sposób oddziaływały poziomy zasolenia, krzem i ich interakcja. Kiełkowanie nasion pomidora zmniejszało się znacznie w miarę zwiększania stężenia NaCl. Dodatek 1 mM Si miał pozytywny wpływ na kiełkowanie, zwiększając procent skiełkowanych nasion, zdolność kiełkowania i średni czas kiełkowania. Si łagodził szkodliwy wpływ stresu zasolenia na kiełkowanie nasion pomidora pod względem niemal wszystkich parametrów związanych z kiełkowaniem.

Keywords: vigor index; germination percentage; germination rate; Si; tomato

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About the article

Published Online: 2012-08-30

Published in Print: 2012-01-01

Citation Information: Vegetable Crops Research Bulletin, ISSN (Online) 1898-7761, ISSN (Print) 1506-9427, DOI: https://doi.org/10.2478/v10032-012-0008-z.

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