Abstract
Pseudomonas fluorescens strains antagonistic to Sarocladium oryzae, the sheath rot (Sh-R) pathogen of rice (Oryza sativa L.), were evaluated in greenhouse and field tests for suppression of Sh-R severity and enhancement of grain yields of rice. Imprints of rice seedlings and a direct-observation technique of staining roots with fluorochromes confirmed the association of P. fluorescens with roots and the ability of the strain to move along shoot tips. In greenhouse tests, P. fluorescens-treated rice plants (cv. IR 20) showed a 54% reduction in the length of Sh-R lesions. In three field tests, treatment with P. fluorescens reduced the severity of Sh-R by 20 to 42% in five rice cultivars. Bacterization of rice cultivars with P. fluorescens enhanced plant height, number of tillers, and grain yields from 3 to 160%.
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Claims 4
Claim · model-written summary
P. fluorescens associated with rice roots and moved along shoot tips.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- rootse0
- Interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- association of P. fluorescens with roots and the ability of the strain to move along shoot tipse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“Imprints of rice seedlings and a direct-observation technique of staining roots with fluorochromes confirmed the association of P. fluorescens with roots and the ability of the strain to move along shoot tips.”
Claim · model-written summary
P. fluorescens treatment reduced sheath rot lesion length by 54% in greenhouse IR 20 rice.
- Taxon
- riceOryza sativae0
- Material
- IR 20e0
- Treatment
- P. fluorescens-treatede0
- Interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- length of Sh-R lesionse0
- Direction
- reductione0
- Value
- 54%e0
- Setting
- greenhouse testse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse tests, P. fluorescens-treated rice plants (cv. IR 20) showed a 54% reduction in the length of Sh-R lesions.”
Claim · model-written summary
P. fluorescens treatment reduced sheath rot severity by 20 to 42% in field tests of five cultivars.
- Taxon
- riceOryza sativae0
- Treatment
- treatment with P. fluorescense0
- Interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- severity of Sh-Re0
- Direction
- reducede0
- Value
- 20 to 42%e0
- Qualifier
- five rice cultivarse0
- Setting
- field testse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In three field tests, treatment with P. fluorescens reduced the severity of Sh-R by 20 to 42% in five rice cultivars.”
Claim · model-written summary
P. fluorescens bacterization enhanced rice height, tiller number and grain yield by 3 to 160%.
- Taxon
- riceOryza sativae0
- Treatment
- Bacterization of rice cultivars with P. fluorescense0
- Interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- plant height, number of tillers, and grain yieldse0
- Direction
- enhancede0
- Value
- 3 to 160%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterization of rice cultivars with P. fluorescens enhanced plant height, number of tillers, and grain yields from 3 to 160%.”
The same questions in other papers
Pseudomonas fluorescens · yield · Oryza sativa (rice)Results differ
29 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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See all 31 papers →Pseudomonas fluorescens · disease · Oryza sativa (rice)Positive and negative results
24 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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See all 26 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.