Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions
Rhizosphere bacteria can provide multiple benefits to plants, including increased nutrient supply, pathogen/disease control, and abiotic stress tolerance, but results from pot trials do not always translate to field conditions. This study tested whether rhizosphere biocontrol bacteria can also provi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/10/1911 |
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| author | Ziyu Shao Alexander Arkhipov Maria Batool Sean R. Muirhead Muchineripi S. Harry Xuan Ji Hooman Mirzaee Lilia C. Carvalhais Peer M. Schenk |
| author_facet | Ziyu Shao Alexander Arkhipov Maria Batool Sean R. Muirhead Muchineripi S. Harry Xuan Ji Hooman Mirzaee Lilia C. Carvalhais Peer M. Schenk |
| author_sort | Ziyu Shao |
| collection | DOAJ |
| description | Rhizosphere bacteria can provide multiple benefits to plants, including increased nutrient supply, pathogen/disease control, and abiotic stress tolerance, but results from pot trials do not always translate to field conditions. This study tested whether rhizosphere biocontrol bacteria can also provide plant growth promotion and how benefits can be provided at a commercial farm. Commercial lettuce seeds and plants were treated with rhizosphere biocontrol bacteria <i>Bacillus velezensis</i> UQ9000N, <i>B. amyloliquefaciens</i> 33YE, <i>Brevibacillus laterosporus</i> 4YE, and <i>Pseudomonas azotoformans</i> UQ4510An. 33YE increased the head diameter, plant height, and fresh weight of the Green Moon cultivar, while 33YE, UQ4510An, and UQ9000N increased the fresh and dry weight of Liston, a more heat-tolerant cultivar, via a single seed treatment or repeat root treatments under nursery and field conditions across different inoculation schedules and growth stages. Significant growth promotion was also demonstrated when inoculating field plants after transplanting (in particular for 33YE). Applications of these microbial biostimulants to lettuce seeds or plantlets potentially enable earlier transplanting and earlier harvests. Repeat inoculations using irrigation water and long-lasting formulations may further advance the benefits of these biostimulants as microbial biofertilisers for plant growth promotions in the field. |
| first_indexed | 2024-03-10T21:31:44Z |
| format | Article |
| id | doaj.art-cd18a4fa07a547cbba8a502bf66dd3d8 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T21:31:44Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-cd18a4fa07a547cbba8a502bf66dd3d82023-11-19T15:18:31ZengMDPI AGAgriculture2077-04722023-09-011310191110.3390/agriculture13101911Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field ConditionsZiyu Shao0Alexander Arkhipov1Maria Batool2Sean R. Muirhead3Muchineripi S. Harry4Xuan Ji5Hooman Mirzaee6Lilia C. Carvalhais7Peer M. Schenk8Plant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaCenter for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Ecosciences Precinct, Brisbane, QLD 4072, AustraliaPlant-Microbe Interactions Laboratory, School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, QLD 4072, AustraliaRhizosphere bacteria can provide multiple benefits to plants, including increased nutrient supply, pathogen/disease control, and abiotic stress tolerance, but results from pot trials do not always translate to field conditions. This study tested whether rhizosphere biocontrol bacteria can also provide plant growth promotion and how benefits can be provided at a commercial farm. Commercial lettuce seeds and plants were treated with rhizosphere biocontrol bacteria <i>Bacillus velezensis</i> UQ9000N, <i>B. amyloliquefaciens</i> 33YE, <i>Brevibacillus laterosporus</i> 4YE, and <i>Pseudomonas azotoformans</i> UQ4510An. 33YE increased the head diameter, plant height, and fresh weight of the Green Moon cultivar, while 33YE, UQ4510An, and UQ9000N increased the fresh and dry weight of Liston, a more heat-tolerant cultivar, via a single seed treatment or repeat root treatments under nursery and field conditions across different inoculation schedules and growth stages. Significant growth promotion was also demonstrated when inoculating field plants after transplanting (in particular for 33YE). Applications of these microbial biostimulants to lettuce seeds or plantlets potentially enable earlier transplanting and earlier harvests. Repeat inoculations using irrigation water and long-lasting formulations may further advance the benefits of these biostimulants as microbial biofertilisers for plant growth promotions in the field.https://www.mdpi.com/2077-0472/13/10/1911<i>Bacillus</i><i>Brevibacillus</i>biostimulantfield trial<i>Lactuca sativa</i>microbial biofertiliser |
| spellingShingle | Ziyu Shao Alexander Arkhipov Maria Batool Sean R. Muirhead Muchineripi S. Harry Xuan Ji Hooman Mirzaee Lilia C. Carvalhais Peer M. Schenk Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions Agriculture <i>Bacillus</i> <i>Brevibacillus</i> biostimulant field trial <i>Lactuca sativa</i> microbial biofertiliser |
| title | Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions |
| title_full | Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions |
| title_fullStr | Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions |
| title_full_unstemmed | Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions |
| title_short | Rhizosphere Bacteria Biofertiliser Formulations Improve Lettuce Growth and Yield under Nursery and Field Conditions |
| title_sort | rhizosphere bacteria biofertiliser formulations improve lettuce growth and yield under nursery and field conditions |
| topic | <i>Bacillus</i> <i>Brevibacillus</i> biostimulant field trial <i>Lactuca sativa</i> microbial biofertiliser |
| url | https://www.mdpi.com/2077-0472/13/10/1911 |
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