Abstract
Abstract Effectiveness of arbuscular mycorrhizal fungi (AMF) is crucial for maximum plant growth and acquisition of mineral nutrients under drought. The objective of this research was to determine effects of varied rates of AMF inoculum on plant growth and acquisition of phosphorus (P), zinc (Zn), copper (Cu), and manganese (Mn) by barley (Hordeum vulgare L. cv. SLB‐6) grown with and without drought stress (WS and nonWS). Plants inoculated with four inoculum rates [control (M0), 120 (M1), 240 (M2), and360 (M3) spores per 100 g dry soil] of Glomus mosseae were grown in a low P silty clay (Typic Xerochrept) soil (pH=8.0) mix in a greenhouse for 45 days. Root AMF colonization increased as inoculum rate increased in plants grown with WS and nonWS. Leaf area and shoot and root dry matter (DM) increased as inoculum rate increased up to M2 regardless of soil moisture. Shoot concentrations of P, Cu, and Mn were generally higher for mycorrhizal (AMF) than for nonmycorrhizal (nonAMF) plants grown with both WS and nonWS. Shoot contents of P, Zn, Cu, and Mn were higher for AMF than for nonAMF plants grown with nonWS, and shoot contents of P were higher for AMF than for nonAMF plants with WS. For plants grown with WS and nonWS, contents of P, Zn, Cu, and Mn were generally higher for plants inoculated with M2 compared to other rates of inoculum. The results of this study indicated that plant responses to root colonization with AMF were dependent on AMF rate and soil moisture. Based on enhancements in plant DM and mineral acquisition traits, M2 inoculum was the most effective rate of inoculation for this AMF isolate.
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Claims 8
Claim · model-written summary
Root AMF colonization increased with inoculum rate under both moisture conditions.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- inoculum ratee0
- Interactor
- AMFe0symbiont
- Outcome
- Root AMF colonizatione0
- Direction
- increasede0
- Qualifier
- WS and nonWSe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Root AMF colonization increased as inoculum rate increased in plants grown with WS and nonWS.”
t0“barley”
Claim · model-written summary
Leaf area and shoot and root dry matter increased with inoculum rate up to M2 regardless of moisture.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- inoculum ratee0
- Outcome
- Leaf area and shoot and root dry matter (DM)e0
- Direction
- increasede0
- Qualifier
- up to M2 regardless of soil moisturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf area and shoot and root dry matter (DM) increased as inoculum rate increased up to M2 regardless of soil moisture.”
t0“barley”
Claim · model-written summary
Shoot P, Cu and Mn concentrations were generally higher in mycorrhizal plants under both moisture conditions.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- mycorrhizal (AMF)e0
- Interactor
- AMFe0symbiont
- Outcome
- Shoot concentrations of P, Cu, and Mne0
- Direction
- highere0
- Qualifier
- both WS and nonWSe0
- Comparator
- nonmycorrhizal (nonAMF)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot concentrations of P, Cu, and Mn were generally higher for mycorrhizal (AMF) than for nonmycorrhizal (nonAMF) plants grown with both WS and nonWS.”
t0“barley”
Claim · model-written summary
Shoot P, Zn, Cu and Mn contents were higher with AMF without drought.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- AMFe0
- Interactor
- AMFe0symbiont
- Outcome
- Shoot contents of P, Zn, Cu, and Mne0
- Direction
- highere0
- Qualifier
- nonWSe0
- Comparator
- nonAMFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot contents of P, Zn, Cu, and Mn were higher for AMF than for nonAMF plants grown with nonWS”
t0“barley”
Claim · model-written summary
Shoot P content was higher with AMF under drought.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- AMFe0
- Interactor
- AMFe0symbiont
- Outcome
- shoot contents of Pe0
- Direction
- highere0
- Qualifier
- WSe0
- Comparator
- nonAMFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot contents of P were higher for AMF than for nonAMF plants with WS.”
t0“barley”
Claim · model-written summary
Shoot P, Zn, Cu and Mn contents were generally higher at M2 than at other inoculum rates under both moisture conditions.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- inoculated with M2e0
- Outcome
- contents of P, Zn, Cu, and Mne0
- Direction
- highere0
- Qualifier
- WS and nonWSe0
- Comparator
- other rates of inoculume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For plants grown with WS and nonWS, contents of P, Zn, Cu, and Mn were generally higher for plants inoculated with M2 compared to other rates of inoculum.”
t0“barley”
Claim · model-written summary
Plant responses to AMF colonization depended on inoculum rate and soil moisture.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- AMF ratee0
- Interactor
- AMFe0symbiont
- Outcome
- plant responses to root colonizatione0
- Qualifier
- soil moisturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant responses to root colonization with AMF were dependent on AMF rate and soil moisture.”
t0“barley”
Claim · model-written summary
M2 was the most effective AMF inoculation rate for dry matter and mineral acquisition.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- M2 inoculum was the most effective rate of inoculatione0
- Qualifier
- plant DM and mineral acquisition traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on enhancements in plant DM and mineral acquisition traits, M2 inoculum was the most effective rate of inoculation for this AMF isolate.”
t0“barley”
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