Abstract
Use of plant growth promoting symbiotic and non-symbiotic free-living beneficial bacteria as external source of nitrogen is a major research concern for sustainable crop production in the 21st century. In view of this, an experiment was conducted under controlled conditions to determine the effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper, for the purpose of reducing external chemical nitrogen fertilization. Amendments with organic fertilizer and chemical fertilizer in the form of NPK were made at dosages of 50%, 75% and 100%, at 425 and 115 kg/ha-1 measurements. The soil type used was loam, with a pH of 5.13. The growth responses were measured as plant height at 19, 36 and 166 days after transplantation and final biomass production after 166 days. It was found that inoculation with M. suomiense CBMB120 promotes plant height increase during the active growth phase at 19 and 36 days by 14.17% and 10.03%, respectively. Thereafter, the bacteria inoculated plantlets showed canopy size increment. A highly significant inoculation effect on plant height at p<0.01 level was found for 100% level of organic matter and chemical amendment in red pepper plantlets after 36 days and 19 days from transplantation. Furthermore, there was a significantly higher (10.30% and 6.84%) dry biomass accumulation in M. suomiense CBMB120 inoculated plants compared to un-inoculated ones. A 25% reduction in the application of chemical nitrogen can be inferred with inoculation of M. suomiense CBMB120 at with comparable results to that of 100% chemical fertilization alone. Enumeration of total bacteria in rhizosphere soil confirms that the introduced bacteria can multiply along ther hizosphere soil. Large scale field study may lead to the development of M. suomiense CBMB120 as an efficient biofertilizer.
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Claims 6
Claim · model-written summary
Inoculation with M. suomiense CBMB120 increased red pepper plant height by 14.17% during the active growth phase at 19 days.
- Taxon
- red pepper
Capsicum annuum var. annuume0 - Treatment
- inoculation with M. suomiense CBMB120e1
- Interactor
- M. suomiense CBMB120Methylorubrum suomiensee1symbiont
- Outcome
- plant heighte1
- Direction
- increasee1
- Value
- 14.17%e1
- Qualifier
- during the active growth phase at 19 and 36 dayse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e1“inoculation with M. suomiense CBMB120 promotes plant height increase during the active growth phase at 19 and 36 days by 14.17% and 10.03%, respectively”
Claim · model-written summary
Inoculation with M. suomiense CBMB120 increased red pepper plant height by 10.03% during the active growth phase at 36 days.
- Taxon
- red pepperCapsicum annuum var. annuume0
- Treatment
- inoculation with M. suomiense CBMB120e1
- Interactor
- M. suomiense CBMB120Methylorubrum suomiensee1symbiont
- Outcome
- plant heighte1
- Direction
- increasee1
- Value
- 10.03%e1
- Qualifier
- during the active growth phase at 19 and 36 dayse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e1“inoculation with M. suomiense CBMB120 promotes plant height increase during the active growth phase at 19 and 36 days by 14.17% and 10.03%, respectively”
Claim · model-written summary
Inoculated red pepper plantlets showed canopy size increment.
- Taxon
- red pepperCapsicum annuum var. annuume0
- Treatment
- the bacteria inoculatede2
- Outcome
- canopy sizee2
- Direction
- incremente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e2“the bacteria inoculated plantlets showed canopy size increment”
Claim · model-written summary
A highly significant inoculation effect on red pepper plant height was found at the 100% organic matter and chemical amendment level.
- Taxon
- red pepperCapsicum annuum var. annuume0
- Treatment
- 100% level of organic matter and chemical amendmente3
- Outcome
- plant heighte3
- Qualifier
- at p<0.01 levele3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e3“A highly significant inoculation effect on plant height at p<0.01 level was found for 100% level of organic matter and chemical amendment in red pepper plantlets after 36 days and 19 days from transplantation”
Claim · model-written summary
Inoculation with M. suomiense CBMB120 significantly increased red pepper dry biomass accumulation compared with un-inoculated plants (10.30% and 6.84%).
- Taxon
- red pepperCapsicum annuum var. annuume0
- Treatment
- M. suomiense CBMB120 inoculatede5
- Interactor
- M. suomiense CBMB120Methylorubrum suomiensee5symbiont
- Outcome
- dry biomass accumulatione5
- Direction
- highere5
- Value
- 10.30% and 6.84%e5
- Comparator
- un-inoculated onese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e5“there was a significantly higher (10.30% and 6.84%) dry biomass accumulation in M. suomiense CBMB120 inoculated plants compared to un-inoculated ones”
Claim · model-written summary
Introduced bacteria can multiply in the rhizosphere soil of red pepper.
- Taxon
- red pepperCapsicum annuum var. annuume0
- Organ / stage
- rhizosphere soile7
- Outcome
- total bacteria in rhizosphere soile7
- Qualifier
- the introduced bacteria can multiplye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of inoculation with Methylobacterium suomiense CBMB120, a plant growth promoting (PGP) root and shoot colonizer on red pepper”
e7“Enumeration of total bacteria in rhizosphere soil confirms that the introduced bacteria can multiply along ther hizosphere soil”
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See all 52 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.