Journal of Soil and Plant Interactions
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1- Yazd University
2- yazd University ,amosleh@yazd.ac.ir
3- Tehran University
4- Kashan University
2- yazd University ,
3- Tehran University
4- Kashan University
Abstract: (38 Views)
Background and Objective: Considering the increase of aridity and the occurrence of dust in arid and semi-arid regions, this study investigated the effects of drought and dust as well as the role of plant growth promoting bacteria (PGPB), including Bacillus amyloliquefaciens and B. halotolerans on the yield and fatty acid composition of camellia seeds.
Methods: A factorial experiment was conducted in a randomized complete block design with different treatments. The treatments in this study included: plant growth-promoting bacteria (in three levels including control, inoculation with B. amyloliquefaciens and with B. halotolerans, different irrigation levels (in two levels with irrigation periods of 4 and 8 days), and the dust (in two levels without dust and with dust application. Supercritical fluid extraction was used to extract the oil.
Results: The results showed that low irrigation and dust significantly reduced seed weight and oil content. Also, the profile of fatty acids changed under the influence of drought and dust stress, so that the amount of myristoleic acid, alpha-linolenic acid, and eicosatrienoic acid decreased. The results of this research showed that the use of plant growth stimulating bacteria increased some fatty acids such as linoleic acid, alpha-linolenic acid and oleic acid, palmitic and stearic and decreased others such as palmitoleic and myristolic and did not cause any change in other fatty acids. In total, the inoculation of the mentioned bacteria reduced the negative effects of stress; So that the growth of roots and aerial organs increased, the oil content was maintained and the ratio of monounsaturated and polyunsaturated fatty acids improved.
Conclusion: It was concluded that the simultaneous use of plant growth stimulating bacteria is recommended as an effective strategy to reduce the negative effects of drought and dust and improve the quality of the Camelina in semi-arid regions.
Methods: A factorial experiment was conducted in a randomized complete block design with different treatments. The treatments in this study included: plant growth-promoting bacteria (in three levels including control, inoculation with B. amyloliquefaciens and with B. halotolerans, different irrigation levels (in two levels with irrigation periods of 4 and 8 days), and the dust (in two levels without dust and with dust application. Supercritical fluid extraction was used to extract the oil.
Results: The results showed that low irrigation and dust significantly reduced seed weight and oil content. Also, the profile of fatty acids changed under the influence of drought and dust stress, so that the amount of myristoleic acid, alpha-linolenic acid, and eicosatrienoic acid decreased. The results of this research showed that the use of plant growth stimulating bacteria increased some fatty acids such as linoleic acid, alpha-linolenic acid and oleic acid, palmitic and stearic and decreased others such as palmitoleic and myristolic and did not cause any change in other fatty acids. In total, the inoculation of the mentioned bacteria reduced the negative effects of stress; So that the growth of roots and aerial organs increased, the oil content was maintained and the ratio of monounsaturated and polyunsaturated fatty acids improved.
Conclusion: It was concluded that the simultaneous use of plant growth stimulating bacteria is recommended as an effective strategy to reduce the negative effects of drought and dust and improve the quality of the Camelina in semi-arid regions.
Type of Study: Research |
Subject:
Plant growth promoting microrganisms in the rhizosphere
Received: 2025/10/1 | Accepted: 2025/12/28
Received: 2025/10/1 | Accepted: 2025/12/28
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Journal of Soil and Plant Interactions by http://jspi.iut.ac.ir is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
