Abstract
Plant growth stimulating rhizosphere bacteria are a heterogeneous group of rhizosphere bacteria which improve plant growth indices throughout diverse mechanisms. The present study aimed to evaluate the efficiency of phosphate solubilizing microorganisms (PSM) in terms of improving growth and yield of the rice plants (cv. Shiroodi). Experiment was conducted at Neka, Mazandaran province, Iran as split plot arrangement based randomized complete block design with four replicates in 2012. Main plots were phosphorous at three levels (0, 83 and 165 kg ha -1 from concentrated superphosphate triple source) and sub plots were phosphate solubilizing microorganisms (PSM) at four levels [control, inoculation with Pseudomonas fluorescens (PSF), P. putida (PSP), and coinoculation of PSF and PSP]. Results showed that there were a significant difference for mineral phosphorous and PSM in terms of number of stems, biological yield, straw yield, and paddy yield. Paddy yield varied from 457.8 gr m-2 in the control treatment to 625.1 and 630.2 gr m-2 in plots which received either 83 or 165 kg ha -1 mineral phosphorous, respectively. Inoculated rice plants with PSM had higher yield attributes. Paddy yield ranged from 498.9 gr m -2 in the control to 528.9, 561.5 and 561.6 gr m -2 in the PSF, PSF+PSP and PSP inoculated plants, respectively. Consequently, the maximum paddy yield of 699.9 gr m-2 (51.8% more than control) was recorded in plots which inoculated with PSP and received 83 kg ha -1 P.
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Claims 8
Claim · model-written summary
Phosphorus and PSM significantly affected stem number and biological, straw and paddy yield.
- Taxon
- rice
Oryza sativae1
- Treatment
- mineral phosphorous and PSMe0
- Outcome
- number of stems, biological yield, straw yield, and paddy yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant difference for mineral phosphorous and PSM in terms of number of stems, biological yield, straw yield, and paddy yield”
e1“rice plants (cv. Shiroodi)”
Claim · model-written summary
83 kg ha -1 phosphorus produced 625.1 gr m-2 paddy yield versus 457.8 gr m-2 control.
- Taxon
- rice
Oryza sativae1
- Treatment
- 83e0
- Outcome
- Paddy yielde0
- Direction
- higherinferrede0
- Value
- 625.1e0
- Qualifier
- 457.8 gr m-2e0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paddy yield varied from 457.8 gr m-2 in the control treatment to 625.1 and 630.2 gr m-2 in plots which received either 83 or 165 kg ha -1 mineral phosphorous, respectively.”
e1“rice plants (cv. Shiroodi)”
Claim · model-written summary
165 kg ha -1 phosphorus produced 630.2 gr m-2 paddy yield versus 457.8 gr m-2 control.
- Taxon
- rice
Oryza sativae1
- Treatment
- 165 kg ha -1 mineral phosphorouse0
- Outcome
- Paddy yielde0
- Direction
- higherinferrede0
- Value
- 630.2 gr m-2e0
- Qualifier
- 457.8 gr m-2e0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paddy yield varied from 457.8 gr m-2 in the control treatment to 625.1 and 630.2 gr m-2 in plots which received either 83 or 165 kg ha -1 mineral phosphorous, respectively.”
e1“rice plants (cv. Shiroodi)”
Claim · model-written summary
Inoculated rice had higher yield attributes.
- Taxon
- rice
Oryza sativae0
- Treatment
- PSMe0
- Outcome
- yield attributese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculated rice plants with PSM had higher yield attributes.”
Claim · model-written summary
PSF inoculation yielded 528.9 gr m -2 paddy versus 498.9 gr m -2 control.
- Taxon
- rice
Oryza sativae1
- Treatment
- PSFe0
- Interactor
- Pseudomonas fluorescens
Pseudomonas fluorescense2symbiont
- Outcome
- Paddy yielde0
- Direction
- higherinferrede0
- Value
- 528.9e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paddy yield ranged from 498.9 gr m -2 in the control to 528.9, 561.5 and 561.6 gr m -2 in the PSF, PSF+PSP and PSP inoculated plants, respectively.”
e1“rice plants (cv. Shiroodi)”
e2“inoculation with Pseudomonas fluorescens (PSF)”
Claim · model-written summary
PSF plus PSP inoculation yielded 561.5 gr m -2 paddy.
- Taxon
- rice
Oryza sativae1
- Treatment
- PSF+PSPe0
- Outcome
- Paddy yielde0
- Direction
- higherinferrede0
- Value
- 561.5e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paddy yield ranged from 498.9 gr m -2 in the control to 528.9, 561.5 and 561.6 gr m -2 in the PSF, PSF+PSP and PSP inoculated plants, respectively.”
e1“rice plants (cv. Shiroodi)”
Claim · model-written summary
PSP inoculation yielded 561.6 gr m -2 paddy.
- Taxon
- rice
Oryza sativae1
- Treatment
- PSPe0
- Interactor
- P. putida
Pseudomonas putidae2symbiont - Outcome
- Paddy yielde0
- Direction
- higherinferrede0
- Value
- 561.6 gr m -2e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Paddy yield ranged from 498.9 gr m -2 in the control to 528.9, 561.5 and 561.6 gr m -2 in the PSF, PSF+PSP and PSP inoculated plants, respectively.”
e1“rice plants (cv. Shiroodi)”
e2“P. putida (PSP)”
Claim · model-written summary
PSP plus 83 kg ha -1 P gave maximum paddy yield, 699.9 gr m-2, 51.8% above control.
- Taxon
- rice
Oryza sativae1
- Treatment
- inoculated with PSP and received 83 kg ha -1 Pe0
- Interactor
- P. putida
Pseudomonas putidae2symbiont - Outcome
- paddy yielde0
- Direction
- maximume0
- Value
- 699.9 gr m-2e0
- Qualifier
- 51.8% more than controle0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maximum paddy yield of 699.9 gr m-2 (51.8% more than control) was recorded in plots which inoculated with PSP and received 83 kg ha -1 P”
e1“rice plants (cv. Shiroodi)”
e2“P. putida (PSP)”
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