Paper · 1979 · New Phytologist

PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA

E. OWUSU‐BENNOAH; BARBARA MOSSE

16
claims
39
verbatim quotes
97
citations
3
research areas
✓
Open access

Abstract

S ummary Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial. After 13 weeks shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum and by four‐, six‐fold and 30 % respectively with the other. Lucerne and onion benefitted most from inoculation in the sub plots with most available P whereas barley responses were confined to those with less available P. The uninoculated plants reached approximately 45% infection from indigenous endophytes and the inoculated plants around 70%. Inoculation responses were not related to infection level. One introduced endophyte spored profusely and spread 22 cm from the point of inoculation, the other formed only few new spores; the indigenous fungi hardly sporulated at all. Spore production was little affected by host species or soil P level and was unrelated to percentage root infcetion. The rationale of field inoculation is discussed with particular reference to amounts of inoculum required.

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Claims 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The first inoculum increased onion shoot growth 77%.

Taxon
onionAllium cepae0
Treatment
one inoculume0
Interactor
endophytese1symbiont
Outcome
shoot growthe0
Direction
increasede0
Value
77%e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
e1

“The uninoculated plants reached approximately 45% infection from indigenous endophytes”

✓ located verbatim in the source · abstract, characters 459–545 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The first inoculum increased lucerne shoot growth 79%.

Taxon
lucerneMedicago sativae0
Treatment
one inoculume0
Outcome
shoot growthe0
Direction
increasede0
Value
79%e0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
e1

“The uninoculated plants reached approximately 45% infection from indigenous endophytes”

✓ located verbatim in the source · abstract, characters 459–545 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The first inoculum increased barley shoot growth 33%.

Treatment
one inoculume0
Outcome
shoot growthe0
Direction
increasede0
Value
33%e0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
e1

“The uninoculated plants reached approximately 45% infection from indigenous endophytes”

✓ located verbatim in the source · abstract, characters 459–545 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The second inoculum increased onion shoot growth fourfold.

Taxon
OnionsAllium cepae1
Treatment
the othere0
Outcome
shoot growthe2
Direction
increasede2
Value
four‐e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“by four‐, six‐fold and 30 % respectively with the other”

✓ located verbatim in the source · abstract, characters 241–296 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
e2

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The second inoculum increased lucerne shoot growth sixfold.

Taxon
lucerneMedicago sativae2
Treatment
the othere0
Outcome
shoot growthe2
Direction
increasede2
Value
six‐folde0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“by four‐, six‐fold and 30 % respectively with the other”

✓ located verbatim in the source · abstract, characters 241–296 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
e2

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The second inoculum increased barley shoot growth 30%.

Treatment
the othere0
Outcome
shoot growthe2
Direction
increasede2
Value
30 %e0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“by four‐, six‐fold and 30 % respectively with the other”

✓ located verbatim in the source · abstract, characters 241–296 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
e2

“shoot growth was increased by 77% (onion), 79% (lucerne) and 33% (barley) with one inoculum”

✓ located verbatim in the source · abstract, characters 145–236 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lucerne and onion benefited most from inoculation where available P was greatest.

Taxon
Lucerne and onionMedicago sativaAllium cepae0
Outcome
benefitted moste0
Direction
moste0
Setting
sub plots with most available Pe0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗
Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Lucerne and onion benefitted most from inoculation in the sub plots with most available P”

✓ located verbatim in the source · abstract, characters 298–387 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Barley responses to inoculation occurred only where less P was available.

Outcome
barley responsese0
Setting
less available Pe0

Not reportedDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“barley responses were confined to those with less available P”

✓ located verbatim in the source · abstract, characters 396–457 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Uninoculated plants reached about 45% infection from indigenous endophytes.

Taxon
plantsViridiplantaee0
Interactor
indigenous endophytese0symbiont
Outcome
infection from indigenous endophytese0
Value
45%e0

Verbatim

e0

“The uninoculated plants reached approximately 45% infection from indigenous endophytes”

✓ located verbatim in the source · abstract, characters 459–545 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Plant inoculation responses were unrelated to infection level.

Taxon
OnionsAllium cepae1
Outcome
Inoculation responsese0
Comparator
infection levele0

Not reportedDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Inoculation responses were not related to infection level”

✓ located verbatim in the source · abstract, characters 584–641 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

One introduced endophyte sporulated profusely and spread 22 cm.

Taxon
OnionsAllium cepae1
Interactor
endophytee0symbiont
Outcome
endophyte spored profusely and spreade0
Value
22 cme0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“One introduced endophyte spored profusely and spread 22 cm from the point of inoculation”

✓ located verbatim in the source · abstract, characters 643–731 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The other introduced endophyte produced few new spores.

Taxon
OnionsAllium cepae1
Interactor
endophytee1symbiont
Outcome
few new sporese0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the other formed only few new spores”

✓ located verbatim in the source · abstract, characters 733–769 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Indigenous fungi hardly sporulated.

Taxon
OnionsAllium cepae1
Interactor
indigenous fungie0symbiont
Outcome
indigenous fungi hardly sporulatede0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the indigenous fungi hardly sporulated at all”

✓ located verbatim in the source · abstract, characters 771–816 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Spore production was little affected by host species or soil P.

Taxon
OnionsAllium cepae1
Outcome
Spore productione0
Direction
little affectede0
Setting
soil P levele0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spore production was little affected by host species or soil P level”

✓ located verbatim in the source · abstract, characters 818–886 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Spore production was unrelated to root infection percentage.

Taxon
OnionsAllium cepae1
Organ / stage
roote0
Outcome
Spore productione2

Not reportedDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“was unrelated to percentage root infcetion”

✓ located verbatim in the source · abstract, characters 891–933 · show in text ↑
t0

“PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA”

✓ located verbatim in the source · title, characters 0–57 · show in text ↑
e1

“Onions, lucerne and barley were inoculated with one of two endophytes placed below the seed in a replicated field trial”

✓ located verbatim in the source · abstract, characters 9–128 · show in text ↑
e2

“Spore production was little affected by host species or soil P level”

✓ located verbatim in the source · abstract, characters 818–886 · show in text ↑

inoculation · growth · Hordeum vulgare (barley)Results differ

88 papers: 66 positive, 22 negative or no effect

65 papers in the same direction as this paper · 22 in the opposite direction

  1. no effect
  2. no effect
  3. negative

84 papers more in this group

See all 88 papers →

inoculation · growth · Allium cepa (onion)Results differ

99 papers: 89 positive, 10 negative or no effect

88 papers in the same direction as this paper · 10 in the opposite direction

  1. no effect
  2. negative
  3. negative

95 papers more in this group

See all 99 papers →

inoculation · growth · Medicago sativa (alfalfa)Positive and negative results

137 papers: 121 positive, 16 negative or no effect

120 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

133 papers more in this group

See all 137 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.