Abstract
The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal. On the basis of soil physico-chemical characteristics, of most probable number (MPN) of indigenous rhizobia and of yields, a hierarchical analysis showed that the sites were grouped in three clusters. Some soils initially considered as Dek were grouped with Dior, so that all of Dior soils were grouped in the same cluster. No significant increasing in shoot biomass or yield was observed when cowpea was inoculated with fungi alone, whatever soil type. However, a significant or noticeable improvement in cowpea seeds production was obtained by rhizobium inoculation. It appeared that cowpea response to inoculation depended on geographical site and were often observed in sandy arenosoils (Dior type) or in loamy sand vertisoils (Dek type) with at least 15mgkg-1 of available phosphorus level.
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Claims 6
Claim · model-written summary
Inoculation of cowpea with arbuscular mycorrhizal fungi alone gave no significant increase in shoot biomass or yield, whatever the soil type.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- inoculated with fungi alonee3
- Interactor
- arbuscular mycorrhizal funguse0symbiont
- Outcome
- shoot biomass or yielde3
- Direction
- No significant increasinge3
- Qualifier
- whatever soil typee3
- Setting
- three geographic sites in Senegale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e3“No significant increasing in shoot biomass or yield was observed when cowpea was inoculated with fungi alone, whatever soil type”
Claim · model-written summary
Rhizobium inoculation gave a significant or noticeable improvement in cowpea seed production.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- rhizobium inoculatione4
- Outcome
- seeds productione4
- Direction
- improvemente4
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e4“a significant or noticeable improvement in cowpea seeds production was obtained by rhizobium inoculation”
Claim · model-written summary
The cowpea response to inoculation depended on geographical site.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- response to inoculatione5
- Setting
- geographical sitee5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e5“It appeared that cowpea response to inoculation depended on geographical site and were often observed in sandy arenosoils (Dior type) or in loamy sand vertisoils (Dek type) with at least 15mgkg-1 of available phosphorus level”
Claim · model-written summary
The cowpea response to inoculation was often observed in sandy arenosoils or loamy sand vertisoils with at least 15 mg/kg available phosphorus.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- response to inoculatione5
- Qualifier
- at least 15mgkg-1 of available phosphorus levele5
- Setting
- sandy arenosoils (Dior type)e5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e5“It appeared that cowpea response to inoculation depended on geographical site and were often observed in sandy arenosoils (Dior type) or in loamy sand vertisoils (Dek type) with at least 15mgkg-1 of available phosphorus level”
Claim · model-written summary
A hierarchical analysis grouped the sites into three clusters on soil characteristics, rhizobia counts and yields.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- grouped in three clusterse1
- Qualifier
- hierarchical analysise1
- Setting
- three geographic sites in Senegale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e1“a hierarchical analysis showed that the sites were grouped in three clusters”
Claim · model-written summary
Some soils initially considered as Dek were grouped with Dior, and all Dior soils fell in one cluster.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- grouped with Diore2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of cowpea [Vigna unguiculata (Walp. (L.)] to inoculation with symbiotic microorganisms (arbuscular mycorrhizal fungus and rhizobium) was investigated on cultivated vertisoils (known locally as Dek) and arenosoils (known locally as Dior) in three geographic sites in Senegal”
e2“Some soils initially considered as Dek were grouped with Dior, so that all of Dior soils were grouped in the same cluster”
The same questions in other papers
inoculation · yield · Vigna unguiculata (cowpea)Results differ
16 papers in the same direction as this paper · 99 in the opposite direction
- positive
- positive
- positive
112 papers more in this group
See all 116 papers →inoculation · Rhizobium · Vigna unguiculata (cowpea)Positive and negative results
16 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
14 papers more in this group
See all 18 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.