Abstract
Plant growth-promoting Rhizobacteria are beneficial native soil bacteria that colonize plant roots and result in increased plant growth.Those that colonise the nodules of legumes are known as nodule associated bacteria.The aim of this study was to determine the effect of chemical soil factors on the abundance of nodule associated bacteria and the symbiotic efficiency of these bacteria when coinoculated with Phaseolus vulgaris in Western Kenya soils.The soil samples were collected from cultivated lands in Kisumu near Lake Victoria, slopes of Mt.Elgon and Kakamega.In each of these regions, the soil samples were collected from four regions.1ml of soil solution at 10 fold dilution for seven dilution steps (10-1to 10-7) and three replications for each dilution was used to inoculate common bean seedling in the Leonard jars.They were harvested after four weeks to determine abundance of nodule associated bacteria using most probable number plant infection method.Mt.Elgon region had the highest population of nodule associated bacteria (120000 cells per gram of the soil), followed by Kisumu (1290 cells per gram of the soil) and Kakamega region had the lowest (17 cells per gram of the soil).The effect of plant growth-promoting Rhizobacteria on the yield of common beans was significantly higher (p < o.oo1) when co-inoculated with Rhizobia compared to the yield of Rhizobia inoculated alone or negative control (not inoculated) (p < 0.05).This study therefore provides knowledge on the factors that favour the survival of common bean symbiotic bacteria and their symbiotic capability which is necessary for production of plant growth-promoting Rhizobacteria inoculants suitable to the soils of Western Kenya.
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Claims 4
Claim · model-written summary
Mt. Elgon region had the highest population of nodule-associated bacteria (120000 cells per gram of soil).
- Taxon
- common bean
Phaseolus vulgarist0 - Interactor
- nodule associated bacteriae1symbiont
- Outcome
- population of nodule associated bacteriae1
- Direction
- higheste1
- Value
- 120000 cells per gram of the soile1
- Setting
- Mt.Elgon regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bean (Phaseolus vulgaris)”
e1“Mt.Elgon region had the highest population of nodule associated bacteria (120000 cells per gram of the soil), followed by Kisumu (1290 cells per gram of the soil) and Kakamega region had the lowest (17 cells per gram of the soil)”
Claim · model-written summary
Kisumu had 1290 cells of nodule-associated bacteria per gram of soil, the second highest population.
- Taxon
- common beanPhaseolus vulgarist0
- Interactor
- nodule associated bacteriae1symbiont
- Outcome
- population of nodule associated bacteriae1
- Value
- 1290 cells per gram of the soile1
- Setting
- Kisumue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bean (Phaseolus vulgaris)”
e1“Mt.Elgon region had the highest population of nodule associated bacteria (120000 cells per gram of the soil), followed by Kisumu (1290 cells per gram of the soil) and Kakamega region had the lowest (17 cells per gram of the soil)”
Claim · model-written summary
Kakamega region had the lowest population of nodule-associated bacteria (17 cells per gram of soil).
- Taxon
- common beanPhaseolus vulgarist0
- Interactor
- nodule associated bacteriae1symbiont
- Outcome
- population of nodule associated bacteriae1
- Direction
- loweste1
- Value
- 17 cells per gram of the soile1
- Setting
- Kakamega regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bean (Phaseolus vulgaris)”
e1“Mt.Elgon region had the highest population of nodule associated bacteria (120000 cells per gram of the soil), followed by Kisumu (1290 cells per gram of the soil) and Kakamega region had the lowest (17 cells per gram of the soil)”
Claim · model-written summary
Co-inoculation with rhizobia significantly increased the yield of common beans compared with rhizobia alone or uninoculated controls.
- Taxon
- common beansPhaseolus vulgarise2
- Treatment
- co-inoculated with Rhizobiae2
- Interactor
- plant growth-promoting Rhizobacteriae2symbiont
- Second interactor
- Rhizobiae2symbiont
- Outcome
- yield of common beanse2
- Direction
- highere2
- Qualifier
- p < o.oo1e2
- Comparator
- Rhizobia inoculated alone or negative control (not inoculated)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The effect of plant growth-promoting Rhizobacteria on the yield of common beans was significantly higher (p < o.oo1) when co-inoculated with Rhizobia compared to the yield of Rhizobia inoculated alone or negative control (not inoculated) (p < 0.05)”
The same questions in other papers
inoculation · yield · Phaseolus vulgaris (common bean)Positive and negative results
152 papers in the same direction as this paper · 36 in the opposite direction · 6 reporting no difference from an alternative
- negative
- no effect
- negative
191 papers more in this group
See all 195 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.