Abstract
Sorghum bicolor adapts to phosphorus (P) deficient soils through mechanisms that contribute to its absorption and solubilization, including the association with microorganisms. The direct application of rock phosphate (RP) and the inoculation with phosphate solubilizing bacteria (PSB) is a sustainable alternative for P supply to the crops. The aim of this study was to evaluate the effect of PSB inoculation of two sorghum genotypes with different P responses (BR007 - efficient and responsive and SC283 - efficient and non-responsive), cultivated in soil fertilized with RP and triple superphosphate (TSP), in greenhouse and field experiments. The sorghum genotypes were inoculated separately with the Bacillus strains that are efficient in P solubilization, B116 and B70, and cultivated under different P fertilization sources (TSP, RP, ½TSP + ½RP). The results suggest that the inoculation response was dependent on sorghum genotype, P source and microbial strain. Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283. The use of PSB as bioinoculants, in combination with RP, is a promising alternative to reduce the use of synthetic fertilizers, contributing to the sustainable sorghum production.
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Claims 7
Claim · model-written summary
The response of sorghum to inoculation with phosphate solubilizing bacteria depended on genotype, P source and microbial strain.
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- inoculation responsee4
- Qualifier
- dependent on sorghum genotype, P source and microbial straine4
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results suggest that the inoculation response was dependent on sorghum genotype, P source and microbial strain”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
Claim · model-written summary
Inoculation of sorghum genotype BR007 with phosphate solubilizing bacteria significantly increased root biomass under greenhouse conditions.
- Taxon
- Sorghum bicolor
Sorghum bicolore0 - Material
- BR007e2
- Treatment
- Inoculatione2
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- root biomasse2
- Direction
- increasede2
- Setting
- greenhouse conditionse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
e2“Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283”
Claim · model-written summary
Inoculation of sorghum genotype BR007 with phosphate solubilizing bacteria significantly increased grain P content under greenhouse conditions.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- BR007e2
- Treatment
- Inoculatione2
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- grain P contente2
- Direction
- increasede2
- Setting
- greenhouse conditionse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
e2“Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283”
Claim · model-written summary
Inoculation of sorghum genotype BR007 with phosphate solubilizing bacteria significantly increased yield in field experiments.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- BR007e2
- Treatment
- Inoculatione2
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- yielde2
- Direction
- increasede2
- Setting
- field experimentse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
e2“Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283”
Claim · model-written summary
Inoculation of sorghum genotype BR007 with phosphate solubilizing bacteria significantly increased grain P content in field experiments.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- BR007e2
- Treatment
- Inoculatione2
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- grain P contente2
- Direction
- increasede2
- Setting
- field experimentse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
e2“Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283”
Claim · model-written summary
Inoculation with phosphate solubilizing bacteria had no effect on sorghum genotype SC283.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- SC283e2
- Treatment
- Inoculatione2
- Interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- effecte2
- Direction
- no effecte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e1“inoculation with phosphate solubilizing bacteria (PSB)”
e2“Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283”
Claim · model-written summary
The authors consider PSB bioinoculants with rock phosphate a promising alternative to reduce synthetic fertilizer use in sorghum.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Outcome
- use of synthetic fertilizerse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor adapts to phosphorus (P) deficient soils”
e3“The use of PSB as bioinoculants, in combination with RP, is a promising alternative to reduce the use of synthetic fertilizers”
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