Paper · 2019 · Journal of Plant Nutrition

Under filed conditions, mycorrhizal inoculum effectiveness depends on plant species and phosphorus nutrition

Ibrahim Ortas

18
claims
21
verbatim quotes
16
citations
3
research areas
—
Not open access

Abstract

The cultivation of horticultural crops, such as green peppers, tomatoes, eggplants and bell peppers is very common in semi-arid Mediterranean climate conditions. Two field experiments were performed to determine the effect of mycorrhizal species, plant species and phosphorus levels on mycorrhizal effectiveness and phosphorus (P) and zinc (Zn) nutrient uptake. In the first experiment, under field conditions, four plants species were inoculated with five arbuscular mycorrhizae (AM) species. In the second field experiment, under the same soil conditions, the same plant species were treated with three levels of phosphorus (P), i.e., control; 50 kg and 100 kg P2O5 ha−1. The most effective mycorrhiza species Claroideoglomus etunicatum selected in the first experiment was used in the second field first experiment. In the first experiment, fruit yield enhancement, yield increase, inoculation effectiveness and nutrient concentration in the plant leaves were analyzed. Under field conditions, plant species growth is strongly dependent on the species of AM fungi. Tomato and green pepper plants were inoculated with Cl. etunicatum, eggplants were inoculated with Funneliformis mosseae and bell peppers were inoculated with Rhizophagus clarus, which are high fruit-yielding plant species. In general, Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants. It seems mycorrhiza species specific to plant species. In the second experiment, mycorrhizal inoculation with P fertilizer application, in particular a moderate amount of P (50 kg ha−1 P2O5) fertilizer increased the green pepper, bell pepper and tomato fruit yield compared with non-inoculated plants and non-P fertilizer application treatments. Increasing the application of P level reduced the mycorrhizal inoculation effectiveness (MIE). The results indicate that for all four solanaceae family plants 50 kg ha−1 P2O5 is a P level threshold for mycorrhizal development, which enhanced plant growth and addition of fertilizer over 50 kg ha−1 P2O5 reduced MIE. P and Zn uptake were significantly increased with mycorrhizal inoculation. These findings are supported by our hypothesis that mycorrhiza inoculation can reduce mycorrhizal dependent horticultural plants P fertilizer requirement.

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Claims 18

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tomato fruit yield was high with Claroideoglomus etunicatum inoculation.

Treatment
inoculated with Cl. etunicatume0
Interactor
Cl. etunicatume0symbiont
Outcome
high fruit-yieldinge0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato and green pepper plants were inoculated with Cl. etunicatum, eggplants were inoculated with Funneliformis mosseae and bell peppers were inoculated with Rhizophagus clarus, which are high fruit-yielding plant species”

✓ located verbatim in the source · abstract, characters 1068–1290 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Green pepper fruit yield was high with Claroideoglomus etunicatum inoculation.

Taxon
green peppere0
Treatment
inoculated with Cl. etunicatume0
Interactor
Cl. etunicatume0symbiont
Outcome
high fruit-yieldinge0
Direction
highe0

Not reportedComparator

Verbatim

e0

“Tomato and green pepper plants were inoculated with Cl. etunicatum, eggplants were inoculated with Funneliformis mosseae and bell peppers were inoculated with Rhizophagus clarus, which are high fruit-yielding plant species”

✓ located verbatim in the source · abstract, characters 1068–1290 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Eggplant fruit yield was high with Funneliformis mosseae inoculation.

Taxon
eggplantsSolanum melongenae0
Treatment
inoculated with Funneliformis mosseaee0
Interactor
Funneliformis mosseaeFunneliformis mosseaee0symbiont
Outcome
high fruit-yieldinge0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗
Funneliformis mosseae
Funneliformis mosseae · Interactor · picture from its Wikimedia Commons categorySamson90 · CC0 · Wikimedia Commons ↗

Verbatim

e0

“eggplants were inoculated with Funneliformis mosseae and bell peppers were inoculated with Rhizophagus clarus, which are high fruit-yielding plant species”

✓ located verbatim in the source · abstract, characters 1136–1290 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bell pepper fruit yield was high with Rhizophagus clarus inoculation.

Taxon
bell pepperse0
Treatment
inoculated with Rhizophagus claruse0
Interactor
Rhizophagus clarusRhizophagus claruse0symbiont
Outcome
high fruit-yieldinge0
Direction
highe0

Not reportedComparator

Verbatim

e0

“bell peppers were inoculated with Rhizophagus clarus, which are high fruit-yielding plant species”

✓ located verbatim in the source · abstract, characters 1193–1290 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Funneliformis mosseae generally increased tomato yield.

Treatment
Fu. mosseaee0
Interactor
Fu. mosseaee0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Claroideoglomus etunicatum generally increased tomato yield.

Treatment
Cl. etunicatume0
Interactor
Cl. etunicatume0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Funneliformis mosseae generally increased green pepper yield.

Taxon
green pepperse0
Treatment
Fu. mosseaee0
Interactor
Fu. mosseaee0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Claroideoglomus etunicatum generally increased green pepper yield.

Taxon
green pepperse0
Treatment
Cl. etunicatume0
Interactor
Cl. etunicatume0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Funneliformis mosseae generally increased eggplant yield.

Taxon
eggplantsSolanum melongenae0
Treatment
Fu. mosseaee0
Interactor
Fu. mosseaee0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Claroideoglomus etunicatum generally increased eggplant yield.

Taxon
eggplantsSolanum melongenae0
Treatment
Cl. etunicatume0
Interactor
Cl. etunicatume0symbiont
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fu. mosseae and Cl. etunicatum increased the yield of the tomatoes, green peppers and eggplants”

✓ located verbatim in the source · abstract, characters 1304–1399 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mycorrhizal inoculation with moderate P increased green pepper fruit yield compared with uninoculated, unfertilized plants.

Taxon
green peppere0
Treatment
mycorrhizal inoculation with P fertilizer applicatione0
Outcome
fruit yielde0
Direction
increasede0
Value
50 kg ha−1 P2O5e0
Comparator
non-inoculated plants and non-P fertilizer application treatmentse0

Not reportedInteractor

Verbatim

e0

“mycorrhizal inoculation with P fertilizer application, in particular a moderate amount of P (50 kg ha−1 P2O5) fertilizer increased the green pepper, bell pepper and tomato fruit yield compared with non-inoculated plants and non-P fertilizer application treatments”

✓ located verbatim in the source · abstract, characters 1482–1745 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mycorrhizal inoculation with moderate P increased bell pepper fruit yield.

Taxon
bell peppere0
Treatment
mycorrhizal inoculation with P fertilizer applicatione0
Outcome
fruit yielde0
Direction
increasede0
Value
50 kg ha−1 P2O5e0
Comparator
non-inoculated plants and non-P fertilizer application treatmentse0

Verbatim

e0

“mycorrhizal inoculation with P fertilizer application, in particular a moderate amount of P (50 kg ha−1 P2O5) fertilizer increased the green pepper, bell pepper and tomato fruit yield compared with non-inoculated plants and non-P fertilizer application treatments”

✓ located verbatim in the source · abstract, characters 1482–1745 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mycorrhizal inoculation with moderate P increased tomato fruit yield.

Treatment
mycorrhizal inoculation with P fertilizer applicatione0
Outcome
fruit yielde0
Direction
increasede0
Value
50 kg ha−1 P2O5e0
Comparator
non-inoculated plants and non-P fertilizer application treatmentse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“mycorrhizal inoculation with P fertilizer application, in particular a moderate amount of P (50 kg ha−1 P2O5) fertilizer increased the green pepper, bell pepper and tomato fruit yield compared with non-inoculated plants and non-P fertilizer application treatments”

✓ located verbatim in the source · abstract, characters 1482–1745 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher P application reduced mycorrhizal inoculation effectiveness.

Taxon
solanaceaeSolanaceaee1
Treatment
Increasing the application of P levele0
Outcome
mycorrhizal inoculation effectiveness (MIE)e0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“Increasing the application of P level reduced the mycorrhizal inoculation effectiveness (MIE)”

✓ located verbatim in the source · abstract, characters 1747–1840 · show in text ↑
e1

“all four solanaceae family plants”

✓ located verbatim in the source · abstract, characters 1872–1905 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors identify 50 kg ha−1 P2O5 as a threshold for mycorrhizal development in four solanaceous crops.

Taxon
solanaceaeSolanaceaee0
Outcome
P level threshold for mycorrhizal developmente0
Value
50 kg ha−1 P2O5e0

Verbatim

e0

“for all four solanaceae family plants 50 kg ha−1 P2O5 is a P level threshold for mycorrhizal development”

✓ located verbatim in the source · abstract, characters 1868–1972 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

P fertilizer above 50 kg ha−1 P2O5 reduced mycorrhizal inoculation effectiveness.

Taxon
solanaceaeSolanaceaee1
Treatment
fertilizer over 50 kg ha−1 P2O5e0
Outcome
MIEe0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“addition of fertilizer over 50 kg ha−1 P2O5 reduced MIE”

✓ located verbatim in the source · abstract, characters 2006–2061 · show in text ↑
e1

“all four solanaceae family plants”

✓ located verbatim in the source · abstract, characters 1872–1905 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mycorrhizal inoculation significantly increased P uptake.

Taxon
solanaceaeSolanaceaee1
Treatment
mycorrhizal inoculatione0
Outcome
P and Zn uptakee0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“P and Zn uptake were significantly increased with mycorrhizal inoculation”

✓ located verbatim in the source · abstract, characters 2063–2136 · show in text ↑
e1

“all four solanaceae family plants”

✓ located verbatim in the source · abstract, characters 1872–1905 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors infer that inoculation can reduce P fertilizer requirement in mycorrhiza-dependent horticultural plants.

Taxon
horticultural plantse0
Outcome
reduce mycorrhizal dependent horticultural plants P fertilizer requiremente0

Verbatim

e0

“mycorrhiza inoculation can reduce mycorrhizal dependent horticultural plants P fertilizer requirement”

✓ located verbatim in the source · abstract, characters 2190–2291 · show in text ↑

mycorrhiza · yield · Capsicum annuum (sweet pepper)Results differ

22 papers: 21 positive, 1 negative or no effect

20 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

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inoculation · yield · Capsicum annuum (sweet pepper)Results differ

37 papers: 34 positive, 3 negative or no effect

33 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
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mycorrhiza · yield · Solanum lycopersicum (tomato)Results differ

65 papers: 59 positive, 6 negative or no effect

58 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

61 papers more in this group

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fertilization · yield · Capsicum annuum (sweet pepper)Positive and negative results

168 papers: 141 positive, 27 negative or no effect

140 papers in the same direction as this paper · 23 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

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inoculation · yield · Solanum lycopersicum (tomato)Positive and negative results

201 papers: 172 positive, 29 negative or no effect

171 papers in the same direction as this paper · 27 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

197 papers more in this group

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fertilization · yield · Solanum lycopersicum (tomato)Positive and negative results

978 papers: 850 positive, 128 negative or no effect

849 papers in the same direction as this paper · 104 in the opposite direction · 24 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

974 papers more in this group

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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.