Abstract
Four strains of Rhizobium leguminosarum bv. Phaseoli (301, 3612, 1799 and 3629), Bacillus megaterium, Bacillus polymyxa and Azotobacter chroococcum were evaluated for potassium, Zinc solubilization and exopolysaccarides production. The maximum potassium (K) liberated was recorded by Bacillus megaterium (33.2 g/ml) followed by Bacillus polymyxa (32.4 g/ml) and Azotobacter chroococcum (32.0 g/ml). Azotobacter chroococcum showed the highest remarkable solubilization potential for zinc oxide ( Rhizobium leguminosarum bv. Phaseoli (301) showed K-liberated (10g/ml), Zinc solubilization efficiency was (100) and EPS production was (6.36 g/L). Upon these tests Bacillus megaterium, Azotobacter chroococcum and Rhizobium leguminosarum bv. Phaseoli (301) were selected and tested for efficient K solubilization using various potassium sources and during different periods of incubation (5, 10 and 15 days). The highest levels of K solubilization were observed in KCl and K2SO4 amended medium broth compared to mica powder-containing media. The maximum release of potassium were 40, 120 and 190 g/ml (untabulated) in R. leguminosarm bv phaseoli (301), Azotobacter chroococcum and Bacillus megaterium respectively at 15 days of incubation. A pot experiment was carried out to study the effect of coinoculation of rhizobial strain with K and Zn solubilizing bacteria and the results showed that the application of T7 of Rhizobium sp. strain 301+Azotobacter chroococcum (that enhanced for Ksolubilization) exhibited the best results of vegetative growth parameters, chlorophyll contents and increased nitrogen, phosphorus, potassium and zinc contents in phaseolus vulgaris plants comparing the controls.
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Claims 4
Claim · model-written summary
Rhizobium strain 301 plus Azotobacter gave the best vegetative growth in bean compared with controls.
- Taxon
- phaseolus vulgaris
Phaseolus vulgarise0 - Treatment
- T7 of Rhizobium sp. strain 301+Azotobacter chroococcume0
- Interactor
- Rhizobium sp. strain 301
Rhizobium sp.e0symbiont - Second interactor
- Azotobacter chroococcumAzotobacter chroococcume0symbiont
- Outcome
- vegetative growth parameterse0
- Direction
- beste0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of T7 of Rhizobium sp. strain 301+Azotobacter chroococcum (that enhanced for Ksolubilization) exhibited the best results of vegetative growth parameters, chlorophyll contents and increased nitrogen, phosphorus, potassium and zinc contents in phaseolus vulgaris plants comparing the controls”
Claim · model-written summary
The bacterial coinoculation produced the best chlorophyll content in bean.
- Taxon
- phaseolus vulgarisPhaseolus vulgarise0
- Treatment
- T7 of Rhizobium sp. strain 301+Azotobacter chroococcume0
- Interactor
- Rhizobium sp. strain 301Rhizobium sp.e0symbiont
- Second interactor
- Azotobacter chroococcumAzotobacter chroococcume0symbiont
- Outcome
- chlorophyll contentse0
- Direction
- beste0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of T7 of Rhizobium sp. strain 301+Azotobacter chroococcum (that enhanced for Ksolubilization) exhibited the best results of vegetative growth parameters, chlorophyll contents and increased nitrogen, phosphorus, potassium and zinc contents in phaseolus vulgaris plants comparing the controls”
Claim · model-written summary
The coinoculation increased nitrogen, phosphorus and potassium contents in bean.
- Taxon
- phaseolus vulgarisPhaseolus vulgarise0
- Treatment
- T7 of Rhizobium sp. strain 301+Azotobacter chroococcume0
- Interactor
- Rhizobium sp. strain 301Rhizobium sp.e0symbiont
- Second interactor
- Azotobacter chroococcumAzotobacter chroococcume0symbiont
- Outcome
- nitrogen, phosphorus, potassiume0
- Direction
- increasede0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of T7 of Rhizobium sp. strain 301+Azotobacter chroococcum (that enhanced for Ksolubilization) exhibited the best results of vegetative growth parameters, chlorophyll contents and increased nitrogen, phosphorus, potassium and zinc contents in phaseolus vulgaris plants comparing the controls”
Claim · model-written summary
The coinoculation increased zinc content in bean.
- Taxon
- phaseolus vulgarisPhaseolus vulgarise0
- Treatment
- T7 of Rhizobium sp. strain 301+Azotobacter chroococcume0
- Interactor
- Rhizobium sp. strain 301Rhizobium sp.e0symbiont
- Second interactor
- Azotobacter chroococcumAzotobacter chroococcume0symbiont
- Outcome
- zinc contentse0
- Direction
- increasede0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of T7 of Rhizobium sp. strain 301+Azotobacter chroococcum (that enhanced for Ksolubilization) exhibited the best results of vegetative growth parameters, chlorophyll contents and increased nitrogen, phosphorus, potassium and zinc contents in phaseolus vulgaris plants comparing the controls”
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See all 6 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.