Abstract
ABSTRACT A glasshouse study was conducted to investigate the effects of interspecific complementary and competitive root interactions and rhizosphere effects on phosphorus (P) and iron (Fe) nutrition of mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.). In order to provide more physiological evidence on the mechanisms of interspecific facilitation, we determined phosphatase activities in plant and rhizosphere, and root ferric reducing capacity (FR), Fe-solubilizing activity (Fe-SA) and rhizosphere pH. The results of the experiment revealed that biomass yield of barley was significantly increased by associated chickpea as compared to monocultured barley, while mixed cropping caused a slight decreases in the biomass yield of chickpea. The rhizosphere was strongly acidified under chickpea and chickpea/barley mixed cropping and this acidification, in turn, increased the available P, Fe(II) and DTPA-Fe concentrations in the rhizosphere. Fe-solubilizing activity (Fe-SA) and ferric reducing (FR) capacity of the roots were higher in both species grown in mixed culture relative to their monoculture which may improve Fe nutrition of both species. Leaf acid phosphatase (APase, EC 3.1.3.2) activity was higher in both plants under mixed cropping that may improve P nutrition of barley by chickpea.
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Claims 9
Claim · model-written summary
Barley biomass yield was significantly increased by associated chickpea compared with monocultured barley.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- associated chickpeae1
- Interactor
- chickpea
Cicer arietinume1other - Outcome
- biomass yielde1
- Direction
- increasede1
- Comparator
- monocultured barleye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e1“biomass yield of barley was significantly increased by associated chickpea as compared to monocultured barley”
Claim · model-written summary
Chickpea biomass yield slightly decreased under mixed cropping.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- mixed croppinge2
- Outcome
- biomass yielde2
- Direction
- decreasese2
- Qualifier
- slighte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e2“mixed cropping caused a slight decreases in the biomass yield of chickpea”
Claim · model-written summary
The rhizosphere was strongly acidified under chickpea and under chickpea/barley mixed cropping.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- chickpea and chickpea/barley mixed croppinge3
- Outcome
- rhizospheree3
- Direction
- strongly acidifiede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e3“The rhizosphere was strongly acidified under chickpea and chickpea/barley mixed cropping”
Claim · model-written summary
Rhizosphere acidification increased available P, Fe(II) and DTPA-Fe concentrations in chickpea and barley mixtures.
- Taxon
- chickpeaCicer arietinume0
- Organ / stage
- rhizospheree4
- Outcome
- available P, Fe(II) and DTPA-Fe concentrationse4
- Direction
- increasede4
- Qualifier
- acidificatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e4“this acidification, in turn, increased the available P, Fe(II) and DTPA-Fe concentrations in the rhizosphere”
Claim · model-written summary
Chickpea root Fe-solubilizing activity and ferric reducing capacity were higher in mixed culture than in monoculture.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- mixed culturee5
- Outcome
- Fe-solubilizing activity (Fe-SA) and ferric reducing (FR) capacity of the rootse5
- Direction
- highere5
- Comparator
- monoculturee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e5“Fe-solubilizing activity (Fe-SA) and ferric reducing (FR) capacity of the roots were higher in both species grown in mixed culture relative to their monoculture”
Claim · model-written summary
Barley root Fe-solubilizing activity and ferric reducing capacity were higher in mixed culture than in monoculture.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- mixed culturee5
- Outcome
- Fe-solubilizing activity (Fe-SA) and ferric reducing (FR) capacity of the rootse5
- Direction
- highere5
- Comparator
- monoculturee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e5“Fe-solubilizing activity (Fe-SA) and ferric reducing (FR) capacity of the roots were higher in both species grown in mixed culture relative to their monoculture”
Claim · model-written summary
Chickpea leaf acid phosphatase activity was higher under mixed cropping.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- mixed croppinge6
- Gene
- APasee6
- Outcome
- Leaf acid phosphatase (APase, EC 3.1.3.2) activitye6
- Direction
- highere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e6“Leaf acid phosphatase (APase, EC 3.1.3.2) activity was higher in both plants under mixed cropping”
Claim · model-written summary
Barley leaf acid phosphatase activity was higher under mixed cropping.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- mixed croppinge6
- Gene
- APasee6
- Outcome
- Leaf acid phosphatase (APase, EC 3.1.3.2) activitye6
- Direction
- highere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mixed grown chickpea (Cicer arietinum L.) and barley (Hordeum vulgare L.)”
e6“Leaf acid phosphatase (APase, EC 3.1.3.2) activity was higher in both plants under mixed cropping”
Claim · model-written summary
Mixed cropping with chickpea may improve P nutrition of barley.
- Taxon
- barleyHordeum vulgaree7
- Interactor
- chickpeaCicer arietinume7other
- Outcome
- P nutritione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“may improve P nutrition of barley by chickpea”
The same questions in other papers
Cicer arietinum · yield · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
intercropping · yield · Cicer arietinum (chickpea)Positive and negative results
14 papers in the same direction as this paper · 48 in the opposite direction
- positive
- positive
- positive
59 papers more in this group
See all 63 papers →intercropping · soil: chemistry · Cicer arietinum (chickpea)Results agree
1 paper in the same direction as this paper
- positive
intercropping · soil: chemistry · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.