The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress
The current work aimed to investigate the effect of seed priming with different agents (CaCl<sub>2</sub>, KCl, and KNO<sub>3</sub>) on germination and seedling establishment in seeds of the barley species of both <i>Hordeum vulgare</i> (L. Manel) and <i>Hord...
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2021
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oai:doaj.org-article:37a232dc9e4b4ec488d14821484c7da82021-11-25T18:44:27ZThe Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress10.3390/plants101122642223-7747https://doaj.org/article/37a232dc9e4b4ec488d14821484c7da82021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2264https://doaj.org/toc/2223-7747The current work aimed to investigate the effect of seed priming with different agents (CaCl<sub>2</sub>, KCl, and KNO<sub>3</sub>) on germination and seedling establishment in seeds of the barley species of both <i>Hordeum vulgare</i> (L. Manel) and <i>Hordeum maritimum</i> germinated with three salt concentrations (0, 100, and 200 mM NaCl). The results showed that under unprimed conditions, salt stress significantly reduced the final germination rate, the mean daily germination, and the seedling length and dry weight. It led to a decrease in the essential nutrient content (iron, calcium, magnesium, and potassium) against an increase in sodium level in both of the barley species. Moreover, this environmental constraint provoked a membrane injury caused by a considerable increase in electrolyte leakage and the malondialdehyde content (MDA). Data analysis proved that seed priming with CaCl<sub>2</sub>, KCl, and KNO<sub>3</sub> was an effective method for alleviating barley seed germination caused by salt stress to varying degrees. Different priming treatments clearly stimulated germination parameters and the essential nutrient concentration, in addition to increasing the seedling growth rate. The application of seed priming reduced the accumulation of sodium ions and mitigated the oxidative stress of seeds caused by salt. This mitigation was traduced by the maintenance of low levels of MDA and electrolyte leakage. We conclude that the priming agents can be classed into three ranges based on their efficacy on the different parameters analyzed; CaCl<sub>2</sub> was placed in the first range, followed closely by KNO<sub>3</sub>, while the least effective was KCl, which placed in the third range.Rim Ben YoussefNahida JelaliNadia BoukariAlfonso AlbaceteCristina MartinezFrancisco Perez AlfoceaChedly AbdellyMDPI AGarticlepretreatmentsalt stress<i>Hordeum vulgare</i> (L. Manel)<i>Hordeum maritimum</i>CaCl<sub>2</sub>KClBotanyQK1-989ENPlants, Vol 10, Iss 2264, p 2264 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
pretreatment salt stress <i>Hordeum vulgare</i> (L. Manel) <i>Hordeum maritimum</i> CaCl<sub>2</sub> KCl Botany QK1-989 |
| spellingShingle |
pretreatment salt stress <i>Hordeum vulgare</i> (L. Manel) <i>Hordeum maritimum</i> CaCl<sub>2</sub> KCl Botany QK1-989 Rim Ben Youssef Nahida Jelali Nadia Boukari Alfonso Albacete Cristina Martinez Francisco Perez Alfocea Chedly Abdelly The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| description |
The current work aimed to investigate the effect of seed priming with different agents (CaCl<sub>2</sub>, KCl, and KNO<sub>3</sub>) on germination and seedling establishment in seeds of the barley species of both <i>Hordeum vulgare</i> (L. Manel) and <i>Hordeum maritimum</i> germinated with three salt concentrations (0, 100, and 200 mM NaCl). The results showed that under unprimed conditions, salt stress significantly reduced the final germination rate, the mean daily germination, and the seedling length and dry weight. It led to a decrease in the essential nutrient content (iron, calcium, magnesium, and potassium) against an increase in sodium level in both of the barley species. Moreover, this environmental constraint provoked a membrane injury caused by a considerable increase in electrolyte leakage and the malondialdehyde content (MDA). Data analysis proved that seed priming with CaCl<sub>2</sub>, KCl, and KNO<sub>3</sub> was an effective method for alleviating barley seed germination caused by salt stress to varying degrees. Different priming treatments clearly stimulated germination parameters and the essential nutrient concentration, in addition to increasing the seedling growth rate. The application of seed priming reduced the accumulation of sodium ions and mitigated the oxidative stress of seeds caused by salt. This mitigation was traduced by the maintenance of low levels of MDA and electrolyte leakage. We conclude that the priming agents can be classed into three ranges based on their efficacy on the different parameters analyzed; CaCl<sub>2</sub> was placed in the first range, followed closely by KNO<sub>3</sub>, while the least effective was KCl, which placed in the third range. |
| format |
article |
| author |
Rim Ben Youssef Nahida Jelali Nadia Boukari Alfonso Albacete Cristina Martinez Francisco Perez Alfocea Chedly Abdelly |
| author_facet |
Rim Ben Youssef Nahida Jelali Nadia Boukari Alfonso Albacete Cristina Martinez Francisco Perez Alfocea Chedly Abdelly |
| author_sort |
Rim Ben Youssef |
| title |
The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| title_short |
The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| title_full |
The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| title_fullStr |
The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| title_full_unstemmed |
The Efficiency of Different Priming Agents for Improving Germination and Early Seedling Growth of Local Tunisian Barley under Salinity Stress |
| title_sort |
efficiency of different priming agents for improving germination and early seedling growth of local tunisian barley under salinity stress |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/37a232dc9e4b4ec488d14821484c7da8 |
| work_keys_str_mv |
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| _version_ |
1718410764992118784 |