NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi
Salinity may strongly influence the interaction between plant roots and surrounding soil, but this has been poorly studied for sodium sulfate (Na<sub>2</sub>SO<sub>4</sub>). The aim of this study was to investigate the effect of sodium chloride (NaCl) and Na<sub>2</s...
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MDPI AG
2021-03-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/3/571 |
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| author | Willy Irakoze Hermann Prodjinoto Séverin Nijimbere Jean Berchmans Bizimana Joseph Bigirimana Gervais Rufyikiri Stanley Lutts |
| author_facet | Willy Irakoze Hermann Prodjinoto Séverin Nijimbere Jean Berchmans Bizimana Joseph Bigirimana Gervais Rufyikiri Stanley Lutts |
| author_sort | Willy Irakoze |
| collection | DOAJ |
| description | Salinity may strongly influence the interaction between plant roots and surrounding soil, but this has been poorly studied for sodium sulfate (Na<sub>2</sub>SO<sub>4</sub>). The aim of this study was to investigate the effect of sodium chloride (NaCl) and Na<sub>2</sub>SO<sub>4</sub> salinities on the soil chemical properties as well as rice physiological- and yield-related parameters of two contrasted cultivars (V14 (salt-sensitive) and Pokkali (salt-resistant)). Pot experiments were conducted using soil and electrolyte solutions, namely NaCl and Na<sub>2</sub>SO<sub>4</sub>, inducing two electrical conductivity levels (EC: 5 or 10 dS m<sup>−1</sup>) of the soil solutions. The control treatment was water with salt-free tap water. Our results showed that soil pH increased under Na<sub>2</sub>SO<sub>4</sub> salinity, while soil EC increased as the level of saline stress increased. Salinity induced an increase in Na<sup>+</sup> concentrations on solid soil complex and in soil solution. NaCl reduced the stomatal density in salt-sensitive cultivar. The total protein contents in rice grain were higher in V14 than in Pokkali cultivar. Saline stress significantly affected all yield-related parameters and NaCl was more toxic than Na<sub>2</sub>SO<sub>4</sub> for most of the studied parameters. Pokkali exhibited a higher tolerance to saline stress than V14, whatever the considered type of salt. It is concluded that different types of salts differently influence soil properties and plant responses and that those differences partly depend on the salt-resistance level of the considered cultivar. |
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| language | English |
| last_indexed | 2024-03-10T13:07:58Z |
| publishDate | 2021-03-01 |
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| series | Agronomy |
| spelling | doaj.art-a0132f73aaf04ad2892a2758036e3a3d2023-11-21T11:00:54ZengMDPI AGAgronomy2073-43952021-03-0111357110.3390/agronomy11030571NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in BurundiWilly Irakoze0Hermann Prodjinoto1Séverin Nijimbere2Jean Berchmans Bizimana3Joseph Bigirimana4Gervais Rufyikiri5Stanley Lutts6Groupe de Recherche en Physiologie Végétale–Earth and Life Institute–Agronomy (ELI-A), UCLouvain, 1348 Louvain-la-Neuve, BelgiumGroupe de Recherche en Physiologie Végétale–Earth and Life Institute–Agronomy (ELI-A), UCLouvain, 1348 Louvain-la-Neuve, BelgiumFaculté d’Agronomie et de Bio-Ingénierie, Université du Burundi, Bujumbura 999107, BurundiInternational Rice Research Institute-Burundi, Bujumbura 999107, BurundiInternational Rice Research Institute-Burundi, Bujumbura 999107, BurundiGeneva Centre for Security Policy (GCSP), 1202 Geneva, SwitzerlandGroupe de Recherche en Physiologie Végétale–Earth and Life Institute–Agronomy (ELI-A), UCLouvain, 1348 Louvain-la-Neuve, BelgiumSalinity may strongly influence the interaction between plant roots and surrounding soil, but this has been poorly studied for sodium sulfate (Na<sub>2</sub>SO<sub>4</sub>). The aim of this study was to investigate the effect of sodium chloride (NaCl) and Na<sub>2</sub>SO<sub>4</sub> salinities on the soil chemical properties as well as rice physiological- and yield-related parameters of two contrasted cultivars (V14 (salt-sensitive) and Pokkali (salt-resistant)). Pot experiments were conducted using soil and electrolyte solutions, namely NaCl and Na<sub>2</sub>SO<sub>4</sub>, inducing two electrical conductivity levels (EC: 5 or 10 dS m<sup>−1</sup>) of the soil solutions. The control treatment was water with salt-free tap water. Our results showed that soil pH increased under Na<sub>2</sub>SO<sub>4</sub> salinity, while soil EC increased as the level of saline stress increased. Salinity induced an increase in Na<sup>+</sup> concentrations on solid soil complex and in soil solution. NaCl reduced the stomatal density in salt-sensitive cultivar. The total protein contents in rice grain were higher in V14 than in Pokkali cultivar. Saline stress significantly affected all yield-related parameters and NaCl was more toxic than Na<sub>2</sub>SO<sub>4</sub> for most of the studied parameters. Pokkali exhibited a higher tolerance to saline stress than V14, whatever the considered type of salt. It is concluded that different types of salts differently influence soil properties and plant responses and that those differences partly depend on the salt-resistance level of the considered cultivar.https://www.mdpi.com/2073-4395/11/3/571chloridesulfatesalinityricesoil chemical propertiesyield |
| spellingShingle | Willy Irakoze Hermann Prodjinoto Séverin Nijimbere Jean Berchmans Bizimana Joseph Bigirimana Gervais Rufyikiri Stanley Lutts NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi Agronomy chloride sulfate salinity rice soil chemical properties yield |
| title | NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi |
| title_full | NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi |
| title_fullStr | NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi |
| title_full_unstemmed | NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi |
| title_short | NaCl- and Na<sub>2</sub>SO<sub>4</sub>-Induced Salinity Differentially Affect Clay Soil Chemical Properties and Yield Components of Two Rice Cultivars (<i>Oryza sativa</i> L.) in Burundi |
| title_sort | nacl and na sub 2 sub so sub 4 sub induced salinity differentially affect clay soil chemical properties and yield components of two rice cultivars i oryza sativa i l in burundi |
| topic | chloride sulfate salinity rice soil chemical properties yield |
| url | https://www.mdpi.com/2073-4395/11/3/571 |
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