Abstract
Abstract This research was conducted to isolate, authenticate, and assess the symbiotic effectiveness of cowpea nodulating rhizobia isolated from Centrosema pubescens and Mucuna pruriens at different locations in Ile-Ife, Nigeria with two varieties of cowpea (Ife BPC and Ife Brown). Thirteen Rhizobium and three Bradyrhizobium species were isolated and all of them significantly enhanced nodulation with Ife brown and Ife BPC cowpeas having 50% and 81.25% effective nodules formation, respectively. The inoculation of the cowpea with Bradyrhizobium sp (C7) increased the yields significantly with Ife brown recording 73.92 g, while Ife BPC had 58.14 g. The symbiotic relationship between the rhizobia species and the two varieties of cowpea increased the soil fertility with nitrogen concentration in the soil increasing to 84.28 mg/g for Ife brown and 55.89 mg/g for Ife BPC. All the sixteen rhizobia isolates were resistant to Carbendazim 12% + Mancozeb 63% W/P; 2,3 Dichlorovinyl dimethyl phosphate; Chlorpyriphos; Atrazine and 2,3 Dimethylamine. In contrast, four Rhizobium sp. were sensitive to Glyphosate at 14.4 mg/ml, while paraquat had inhibitory effect on 14 out of the 16 rhizobial species at 2.76 mg/ml. This study concluded that the rhizobia isolates improved the cowpea yield and also enriched the soil compared to the Nitrogen, Phoshorus and potassium (NPK) fertilized soil.
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Claims 11
Claim · model-written summary
Rhizobium and Bradyrhizobium isolates significantly enhanced nodulation, with 50% effective nodules for Ife brown.
- Taxon
- cowpeas
Vigna unguiculatae0 - Material
- Ife browne0
- Treatment
- all of theme0
- Outcome
- effective nodules formatione0
- Direction
- enhancede0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all of them significantly enhanced nodulation with Ife brown and Ife BPC cowpeas having 50% and 81.25% effective nodules formation, respectively.”
Claim · model-written summary
The isolates significantly enhanced nodulation, with 81.25% effective nodules for Ife BPC.
- Taxon
- cowpeasVigna unguiculatae0
- Material
- Ife BPCe0
- Treatment
- all of theme0
- Outcome
- effective nodules formatione0
- Direction
- enhancede0
- Value
- 81.25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all of them significantly enhanced nodulation with Ife brown and Ife BPC cowpeas having 50% and 81.25% effective nodules formation, respectively.”
Claim · model-written summary
Bradyrhizobium sp C7 significantly increased Ife brown yield to 73.92 g.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- Ife browne0
- Treatment
- inoculation of the cowpea with Bradyrhizobium sp (C7)e0
- Interactor
- Bradyrhizobium sp (C7)
Bradyrhizobiume0symbiont - Outcome
- yieldse0
- Direction
- increasede0
- Value
- 73.92 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inoculation of the cowpea with Bradyrhizobium sp (C7) increased the yields significantly with Ife brown recording 73.92 g, while Ife BPC had 58.14 g.”
Claim · model-written summary
Bradyrhizobium sp C7 significantly increased Ife BPC yield to 58.14 g.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- Ife BPCe0
- Treatment
- inoculation of the cowpea with Bradyrhizobium sp (C7)e0
- Interactor
- Bradyrhizobium sp (C7)Bradyrhizobiume0symbiont
- Outcome
- yieldse0
- Direction
- increasede0
- Value
- 58.14 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inoculation of the cowpea with Bradyrhizobium sp (C7) increased the yields significantly with Ife brown recording 73.92 g, while Ife BPC had 58.14 g.”
Claim · model-written summary
Rhizobia association increased soil nitrogen to 84.28 mg/g with Ife brown.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Ife browne0
- Outcome
- nitrogen concentration in the soile0
- Direction
- increasinge0
- Value
- 84.28 mg/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen concentration in the soil increasing to 84.28 mg/g for Ife brown”
t0“cowpea”
e1“rhizobia species”
Claim · model-written summary
Rhizobia association increased soil nitrogen to 55.89 mg/g with Ife BPC.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Ife BPCe0
- Outcome
- nitrogen concentration in the soile0
- Direction
- increasinge0
- Value
- 55.89 mg/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen concentration in the soil increasing to 84.28 mg/g for Ife brown and 55.89 mg/g for Ife BPC.”
t0“cowpea”
e1“rhizobia species”
Claim · model-written summary
Sixteen rhizobia isolates resisted five listed pesticides.
- Taxon
- cowpeaVigna unguiculatat0
- Interactor
- rhizobiae0symbiont
- Outcome
- rhizobia isolates were resistante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the sixteen rhizobia isolates were resistant to Carbendazim 12% + Mancozeb 63% W/P; 2,3 Dichlorovinyl dimethyl phosphate; Chlorpyriphos; Atrazine and 2,3 Dimethylamine.”
t0“cowpea”
Claim · model-written summary
Four Rhizobium isolates were sensitive to glyphosate at 14.4 mg/ml.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- Rhizobium sp. were sensitive to Glyphosatee0
- Value
- 14.4 mg/mle0
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four Rhizobium sp. were sensitive to Glyphosate at 14.4 mg/ml”
t0“cowpea”
Claim · model-written summary
Paraquat inhibited 14 of 16 rhizobial species at 2.76 mg/ml.
- Taxon
- cowpeaVigna unguiculatat0
- Interactor
- rhizobial speciese0symbiont
- Outcome
- inhibitory effect on 14 out of the 16 rhizobial speciese0
- Value
- 2.76 mg/mle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paraquat had inhibitory effect on 14 out of the 16 rhizobial species at 2.76 mg/ml.”
t0“cowpea”
Claim · model-written summary
The authors conclude rhizobia isolates improved cowpea yield relative to NPK fertilization.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- rhizobia isolatese0
- Interactor
- rhizobia isolatese0symbiont
- Outcome
- cowpea yielde0
- Direction
- improvede0
- Comparator
- the Nitrogen, Phoshorus and potassium (NPK) fertilized soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rhizobia isolates improved the cowpea yield and also enriched the soil compared to the Nitrogen, Phoshorus and potassium (NPK) fertilized soil.”
Claim · model-written summary
The authors conclude rhizobia isolates enriched soil relative to NPK fertilization.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- rhizobia isolatese0
- Interactor
- rhizobia isolatese0symbiont
- Outcome
- soile0
- Direction
- enrichede0
- Comparator
- the Nitrogen, Phoshorus and potassium (NPK) fertilized soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rhizobia isolates improved the cowpea yield and also enriched the soil compared to the Nitrogen, Phoshorus and potassium (NPK) fertilized soil.”
The same questions in other papers
Bradyrhizobium · yield · Vigna unguiculata (cowpea)Results differ
10 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
10 papers more in this group
See all 14 papers →inoculation · yield · Vigna unguiculata (cowpea)Results differ
98 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
112 papers more in this group
See all 116 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.