Abstract
The rhizosphere contain a different compounds produced by the plant roots. The plant growth–promoting rhizobacteria (PGPR) can colonize plant root and promote plant growth and some of them can reduce the incidence of soil –borne diseases. PGPRs are beneficial for agriculture and often used as biocontrol or biofertilizer inoculants. However, the variation in bacterial colonization and survival within the rhizosphere (rhizosph ere competence) can cause inconsistency of the field results. In this study, the mixture of the selected bacteria (Azotobacter, Pseudomonas and Bacillus) has been used as inoculum to assess the competitiveness and effects on plant growth and yield of diffe rent maize genotypes. Rep–PCR using (GTG)5 primer for BOX elements were applied. Phenotypic and PGP traits as well as persistance of inoculated strains in the total number of bacteria have been avaluated. The obtained results assessed by a combination of genotyping and phenotyping methods showed that mixture of strains ( Azotobacter, Pseudomonas PS2 and Bacillus Q7) had better competitiveness to indigenous bacteria in the rhizosphere of all maize genotypes. Inoculation increased the total number of microorganisms by 61%, the number of N2-fixing bacteria by 49% and the number of azotobacters by 5% compared to the non–inoculated control i.e. indigenous bacterial population. PGP traits of Azotobacter, PseudomonasPS2 and Bacillus Q7 influenced a growth and quality of maize.
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Claims 5
Claim · model-written summary
The bacterial mixture competed better with indigenous rhizosphere bacteria across maize genotypes.
- Interactor
- Azotobacter
Azotobactere0symbiont - Outcome
- better competitiveness to indigenous bacteriae0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixture of strains ( Azotobacter, Pseudomonas PS2 and Bacillus Q7) had better competitiveness to indigenous bacteria in the rhizosphere of all maize genotypes”
Claim · model-written summary
Inoculation increased total microorganisms by 61% relative to uninoculated control.
- Treatment
- Inoculatione0
- Outcome
- total number of microorganismse0
- Direction
- increasede0
- Value
- 61%e0
- Comparator
- non–inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation increased the total number of microorganisms by 61%, the number of N2-fixing bacteria by 49% and the number of azotobacters by 5% compared to the non–inoculated control”
t0“maize genotypes”
Claim · model-written summary
Inoculation increased N2 fixing bacteria by 49%.
- Treatment
- Inoculatione0
- Outcome
- number of N2-fixing bacteriae0
- Direction
- increasede0
- Value
- 49%e0
- Comparator
- non–inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation increased the total number of microorganisms by 61%, the number of N2-fixing bacteria by 49% and the number of azotobacters by 5% compared to the non–inoculated control”
t0“maize genotypes”
Claim · model-written summary
Inoculation increased azotobacters by 5%.
- Treatment
- Inoculatione0
- Interactor
- azotobactersAzotobactere0symbiont
- Outcome
- number of azotobacterse0
- Direction
- increasede0
- Value
- 5%e0
- Comparator
- non–inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation increased the total number of microorganisms by 61%, the number of N2-fixing bacteria by 49% and the number of azotobacters by 5% compared to the non–inoculated control”
t0“maize genotypes”
Claim · model-written summary
The bacterial PGP traits influenced maize growth and quality.
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- growth and quality of maizee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PGP traits of Azotobacter, PseudomonasPS2 and Bacillus Q7 influenced a growth and quality of maize”
The same questions in other papers
inoculation · Azotobacter · Zea mays (maize)Results agree
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See all 12 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.