Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria
Soil salinity significantly impacts crop productivity. In response, plant growth-promoting rhizobacteria (PGPR) offer an innovative and eco-friendly solution to mitigate salinity stress. However, research on PGPR’s effects on crop physiology under varying salinity levels is still emerging. This stud...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Crops |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-7655/4/4/33 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850036352547028992 |
|---|---|
| author | Hiba Yahyaoui Nadia El Allaoui Aziz Aziz Majida Hafidi Khaoula Habbadi |
| author_facet | Hiba Yahyaoui Nadia El Allaoui Aziz Aziz Majida Hafidi Khaoula Habbadi |
| author_sort | Hiba Yahyaoui |
| collection | DOAJ |
| description | Soil salinity significantly impacts crop productivity. In response, plant growth-promoting rhizobacteria (PGPR) offer an innovative and eco-friendly solution to mitigate salinity stress. However, research on PGPR’s effects on crop physiology under varying salinity levels is still emerging. This study evaluates the impact of five bacterial strains, isolated from compost, on the growth of maize (<i>Zea mays</i>) and tomato (<i>Solanum lycopersicum</i>) plants under different levels of salt stress. This study involved treating maize and tomato seeds with five bacterial strains, and then planting them in a greenhouse under varying salt stress conditions (43 mM, 86 mM, 172 mM, 207 mM NaCl) using a Randomized Complete Block Design. Results showed that bacterial inoculation improved plant growth under saline conditions. S2015-1, S2026-2, and S2027-2 (<i>Bacillus cereus</i>, <i>Acinetobacter calcoaceticus</i>, <i>Bacillus subtilis</i>) were particularly effective in promoting plant growth under salt stress, especially at ionic concentrations of 43 mM and 86 mM, leading to a substantial increase in fresh and dry weight, with strain S2015-1 boosting chlorophyll by 29% at 86 mM in both crops. These results highlight the potential of PGPR to enhance crop resilience and productivity under salinity stress, promoting climate-smart agricultural practices. |
| format | Article |
| id | doaj-art-10c103bc113546a29ebd89fffc818312 |
| institution | DOAJ |
| issn | 2673-7655 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crops |
| spelling | doaj-art-10c103bc113546a29ebd89fffc8183122025-08-20T02:57:12ZengMDPI AGCrops2673-76552024-10-014446347910.3390/crops4040033Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting RhizobacteriaHiba Yahyaoui0Nadia El Allaoui1Aziz Aziz2Majida Hafidi3Khaoula Habbadi4Plant Protection Research Unit, National Institute of Agronomic Research (INRA), Regional Center of Agronomic Research of Meknes (CRRA), Meknes 50000, MoroccoPlant Protection Research Unit, National Institute of Agronomic Research (INRA), Regional Center of Agronomic Research of Meknes (CRRA), Meknes 50000, MoroccoResearch Unit “Induced Resistance and Plant Bioprotection”, RIBP-USC INRAe 1488, University of Reims Champagne-Ardenne, 51100 Reims, FranceLaboratory of Biotechnology and Bio-Resources Valorization, Faculty of Sciences, University Moulay Ismail, Meknes 50000, MoroccoPlant Protection Research Unit, National Institute of Agronomic Research (INRA), Regional Center of Agronomic Research of Meknes (CRRA), Meknes 50000, MoroccoSoil salinity significantly impacts crop productivity. In response, plant growth-promoting rhizobacteria (PGPR) offer an innovative and eco-friendly solution to mitigate salinity stress. However, research on PGPR’s effects on crop physiology under varying salinity levels is still emerging. This study evaluates the impact of five bacterial strains, isolated from compost, on the growth of maize (<i>Zea mays</i>) and tomato (<i>Solanum lycopersicum</i>) plants under different levels of salt stress. This study involved treating maize and tomato seeds with five bacterial strains, and then planting them in a greenhouse under varying salt stress conditions (43 mM, 86 mM, 172 mM, 207 mM NaCl) using a Randomized Complete Block Design. Results showed that bacterial inoculation improved plant growth under saline conditions. S2015-1, S2026-2, and S2027-2 (<i>Bacillus cereus</i>, <i>Acinetobacter calcoaceticus</i>, <i>Bacillus subtilis</i>) were particularly effective in promoting plant growth under salt stress, especially at ionic concentrations of 43 mM and 86 mM, leading to a substantial increase in fresh and dry weight, with strain S2015-1 boosting chlorophyll by 29% at 86 mM in both crops. These results highlight the potential of PGPR to enhance crop resilience and productivity under salinity stress, promoting climate-smart agricultural practices.https://www.mdpi.com/2673-7655/4/4/33climate changesoil salinity<i>Solanum lycopersicum</i> L.<i>Zea mays</i> L.PGPRssustainable agriculture |
| spellingShingle | Hiba Yahyaoui Nadia El Allaoui Aziz Aziz Majida Hafidi Khaoula Habbadi Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria Crops climate change soil salinity <i>Solanum lycopersicum</i> L. <i>Zea mays</i> L. PGPRs sustainable agriculture |
| title | Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria |
| title_full | Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria |
| title_fullStr | Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria |
| title_full_unstemmed | Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria |
| title_short | Minimizing the Adverse Impacts of Soil Salinity on Maize and Tomato Growth and Productivity through the Application of Plant Growth-Promoting Rhizobacteria |
| title_sort | minimizing the adverse impacts of soil salinity on maize and tomato growth and productivity through the application of plant growth promoting rhizobacteria |
| topic | climate change soil salinity <i>Solanum lycopersicum</i> L. <i>Zea mays</i> L. PGPRs sustainable agriculture |
| url | https://www.mdpi.com/2673-7655/4/4/33 |
| work_keys_str_mv | AT hibayahyaoui minimizingtheadverseimpactsofsoilsalinityonmaizeandtomatogrowthandproductivitythroughtheapplicationofplantgrowthpromotingrhizobacteria AT nadiaelallaoui minimizingtheadverseimpactsofsoilsalinityonmaizeandtomatogrowthandproductivitythroughtheapplicationofplantgrowthpromotingrhizobacteria AT azizaziz minimizingtheadverseimpactsofsoilsalinityonmaizeandtomatogrowthandproductivitythroughtheapplicationofplantgrowthpromotingrhizobacteria AT majidahafidi minimizingtheadverseimpactsofsoilsalinityonmaizeandtomatogrowthandproductivitythroughtheapplicationofplantgrowthpromotingrhizobacteria AT khaoulahabbadi minimizingtheadverseimpactsofsoilsalinityonmaizeandtomatogrowthandproductivitythroughtheapplicationofplantgrowthpromotingrhizobacteria |