Abstract
Abstract Influence of the plant health‐promoting rhizobacteria Agrobacterium radiobacter and Bacillus sphaericus on Globodera pallida root infection of potato and subsequent plant growth The plant health‐promoting rhizobacteria (PHPR) Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’. In greenhouse tests the PHPR, sprayed individually, caused a significant reduction (p = 1 %) of approximately 41 % in nematode penetration whereas the blend had no effect on the infection process. Under field conditions the blend caused a significant (p = 1 %) 31 % and the treatment with B. sphaericus alone a significant (p = 1 %) 29 % reduction in penetration. Nematode reproduction was reduced significant by (p = 1 %) 51 % following application of B. sphaericus . The reduction in final cyst number detected in the field trials in the PHPR treatments was not statistically significant. Increased root growth was not observed in either the greenhouse or the field trials. However, tuber yield increased by 18 % and 22 % in the field trials when the tubers were treated with A. radiobacter or the blend, respectively. There was a significant increase (p = 5 %) of 38 % in the number of tubers per plant in the treatment with the blend. Zusammenfassung Die pflanzengesundheitsfördernden Rhizobakterien (PGFR) Agrobacterium radiobacter und Bacillus sphaericus sowie deren Mischungen wurden unter Gewächshaus‐ und Feldbedingungen in ihrer Wirkung auf den Globodera pallida ‐Befall der Kartoffelsorte Hansa untersucht. Die Einzelbehandlungen der PGFR bewirkten im Gewächshaus eine signifikante (p = 1%) ca. 41%ige Reduktion der Nematodeneindringung, während die Mischung beider Stämme keinen Einfluß zeigte. Im Freiland hemmte dagegen die Mischungsvariante den Befall signifikant (p = 1 %) um 31% und B. sphaericus signifikant (p = 1 %) um 29%. Die Nematodenvermehrung wurde im Gewächshaus durch B. sphaericus signifikant (p = 1 %) um ca. 51 % gemindert. Im Feld ermittelte Reduktionen der Zystenvermehrung nach Behandlung mit PGFR waren statistisch nicht abzusichern. Einflüsse der Bakterien auf das Wurzelwachstum konnten weder im Gewächshaus noch im Freiland festgestellt werden. Der im Freiland ermittelte Knollenertrag war durch A. radiobacter um ca. 18 % und durch die Mischung der Stämme um ca. 22 % erhöht. Die Anzahl der gebildeten Knollen pro Staude war an den mit beiden Bakterien inokulierten Pflanzen signifikant (p = 5 %) um 38 % höher.
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Claims 11
Claim · model-written summary
Agrobacterium radiobacter applied individually significantly reduced greenhouse nematode penetration by approximately 41 %.
- Taxon
- potato
Solanum tuberosume0 - Material
- Hansae0
- Treatment
- sprayed individuallye1
- Interactor
- Globodera pallida
Globodera pallidae0pathogen - Second interactor
- Agrobacterium radiobacter
Agrobacterium radiobactere0biocontrol_agent - Outcome
- nematode penetratione1
- Direction
- reductione1
- Value
- approximately 41 %e1
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant health‐promoting rhizobacteria (PHPR) Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“In greenhouse tests the PHPR, sprayed individually, caused a significant reduction (p = 1 %) of approximately 41 % in nematode penetration whereas the blend had no effect on the infection process.”
Claim · model-written summary
Bacillus sphaericus applied individually significantly reduced greenhouse nematode penetration by approximately 41 %.
- Taxon
- potatoSolanum tuberosume0
- Material
- Hansae0
- Treatment
- sprayed individuallye1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Second interactor
- Bacillus sphaericusLysinibacillus sphaericuse0biocontrol_agent
- Outcome
- nematode penetratione1
- Direction
- reductione1
- Value
- approximately 41 %e1
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant health‐promoting rhizobacteria (PHPR) Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“In greenhouse tests the PHPR, sprayed individually, caused a significant reduction (p = 1 %) of approximately 41 % in nematode penetration whereas the blend had no effect on the infection process.”
Claim · model-written summary
The bacterial blend had no effect on greenhouse infection.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- blende1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Second interactor
- Agrobacterium radiobacterAgrobacterium radiobactere0biocontrol_agent
- Outcome
- infection processe1
- Direction
- no effecte1
- Qualifier
- Bacillus sphaericuse0
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“In greenhouse tests the PHPR, sprayed individually, caused a significant reduction (p = 1 %) of approximately 41 % in nematode penetration whereas the blend had no effect on the infection process.”
Claim · model-written summary
The blend significantly reduced field penetration by 31 %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- blende1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Second interactor
- Agrobacterium radiobacterAgrobacterium radiobactere0biocontrol_agent
- Outcome
- penetratione1
- Direction
- reductione1
- Value
- 31 %e1
- Qualifier
- Bacillus sphaericuse0
- Setting
- fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“Under field conditions the blend caused a significant (p = 1 %) 31 % and the treatment with B. sphaericus alone a significant (p = 1 %) 29 % reduction in penetration.”
Claim · model-written summary
B. sphaericus alone significantly reduced field penetration by 29 %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- treatment with B. sphaericus alonee1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Second interactor
- B. sphaericusLysinibacillus sphaericuse1biocontrol_agent
- Outcome
- penetratione1
- Direction
- reductione1
- Value
- 29 %e1
- Setting
- fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“Under field conditions the blend caused a significant (p = 1 %) 31 % and the treatment with B. sphaericus alone a significant (p = 1 %) 29 % reduction in penetration.”
Claim · model-written summary
B. sphaericus significantly reduced nematode reproduction by 51 % in the greenhouse.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- application of B. sphaericuse1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Second interactor
- B. sphaericusLysinibacillus sphaericuse1biocontrol_agent
- Outcome
- Nematode reproductione1
- Direction
- reducede1
- Value
- 51 %e1
- Setting
- Gewächshause2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“Nematode reproduction was reduced significant by (p = 1 %) 51 % following application of B. sphaericus .”
e2“Die Nematodenvermehrung wurde im Gewächshaus durch B. sphaericus signifikant (p = 1 %) um ca. 51 % gemindert.”
Claim · model-written summary
Final cyst number reductions in field PHPR treatments were not statistically significant.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- PHPR treatmentse1
- Interactor
- Globodera pallidaGlobodera pallidae0pathogen
- Outcome
- final cyst numbere1
- Direction
- reductione1
- Qualifier
- Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteriae0
- Setting
- fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant health‐promoting rhizobacteria (PHPR) Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“The reduction in final cyst number detected in the field trials in the PHPR treatments was not statistically significant.”
Claim · model-written summary
Increased root growth was not observed in greenhouse or field trials.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- PHPRe0
- Outcome
- root growthe1
- Direction
- not observede1
- Qualifier
- or the field trialse1
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant health‐promoting rhizobacteria (PHPR) Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“Increased root growth was not observed in either the greenhouse or the field trials.”
Claim · model-written summary
A. radiobacter tuber treatment increased field tuber yield by 18 %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- treated with A. radiobactere1
- Interactor
- A. radiobacterAgrobacterium radiobactere1biocontrol_agent
- Outcome
- tuber yielde1
- Direction
- increasede1
- Value
- 18 %e1
- Setting
- fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“However, tuber yield increased by 18 % and 22 % in the field trials when the tubers were treated with A. radiobacter or the blend, respectively.”
Claim · model-written summary
The blend increased field tuber yield by 22 %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- blende1
- Interactor
- Agrobacterium radiobacterAgrobacterium radiobactere0biocontrol_agent
- Second interactor
- Bacillus sphaericusLysinibacillus sphaericuse0biocontrol_agent
- Outcome
- tuber yielde1
- Direction
- increasede1
- Value
- 22 %e1
- Setting
- fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“However, tuber yield increased by 18 % and 22 % in the field trials when the tubers were treated with A. radiobacter or the blend, respectively.”
Claim · model-written summary
The blend significantly increased tuber number per plant by 38 %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- treatment with the blende1
- Interactor
- Agrobacterium radiobacterAgrobacterium radiobactere0biocontrol_agent
- Second interactor
- Bacillus sphaericusLysinibacillus sphaericuse0biocontrol_agent
- Outcome
- number of tubers per plante1
- Direction
- increasee1
- Value
- 38 %e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agrobacterium radiobacter and Bacillus sphaericus as well as a blend of both bacteria were tested under greenhouse and field conditions for their ability to reduce Globodera pallida root infection on the potato cultivar ‘Hansa’.”
e1“There was a significant increase (p = 5 %) of 38 % in the number of tubers per plant in the treatment with the blend.”
The same questions in other papers
inoculation · Globodera pallida · Solanum tuberosum (potato)Positive and negative results
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- negative
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inoculation · growth · Solanum tuberosum (potato)Positive and negative results
21 papers in the same direction as this paper · 82 in the opposite direction
- positive
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100 papers more in this group
See all 104 papers →application · Globodera pallida · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
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.