| Autor: |
Дешев, Манол, Дешева, Гергана, Стаматов, Станислав, Кьосев, Божидар |
| Předmět: |
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| Zdroj: |
Journal of Mountain Agriculture on the Balkans (JMAB); 2018, Vol. 21 Issue 3, p328-344, 17p |
| Abstrakt: |
The aim of study is to determine the effect of NaCl salinity stress on germination characteristics and seedling growth of 5 Bulgarian sesame cultivars -Nevena, Aida, Milena, Sadovo 1 and Sofia. Five different concentrations of NaCl (25, 50, 100, 125 and 150 mM) are used as treatments and deionized water is used as control. To determine the salinity tolerance, the following germination characteristics -germination energy (%), germination percentage (%), coefficient of velocity of germination (% day-1), germination rate index and mean germination time (day) are studied. The data for the shoot and root length (cm), fresh weight (mg plant-1) of shoot and root and dry weight (mg plant-1) of shoot and root are measured ten days after germination. Vigour index and salt tolerance index are also calculated. Correlations between investigated characters are determined. The effect of increasing NaCl levels on germination energy and final germination percentages are not recorded. Increasing salinity concentration from 0 to 150 mM NaCl prolonged mean germination time. Increasing salt concentration had an inhibitory effect on the initial seedling growth. Sofia cultivar is the most tolerant at seedling growth stage and Milena is the most sensitive variety. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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