Paper · 1990 · Journal of the American Society for Horticultural Science

Mycorrhizal Species, Root Age, and Position of Mycorrhizal Inoculum Influence Colonization of Cotton, Onion, and Pepper Seedlings

U. Afek; E. Rinaldelli; J.A. Menge; et al.

18
claims
36
verbatim quotes
37
citations
2
research areas
✓
Open access

Abstract

The length of time required for vesicular-arbuscular mycorrhiza (VAM) colonization, the effect of root age, and the position of VAM inoculum with respect to the root system were tested on cotton (Gossypium hirsutum L.), onion (Allium cepa L.), and pepper (Capsicum annuum L.). Colonization of onion by Glomus deserticola began 3 days after inoculation and reached 50% of the total root length after 21 days. Colonization by G. mosseae and G. intraradices began after 12 days and attained 15% and 37%, respectively, after 21 days. In cotton, colonization with G. deserticola and G. intraradices began 12 days following inoculation and increased to 20% and 18%, respectively, after 21 days. Colonization of cotton by G. mosseae was poor. In pepper, colonization with G. deserticola, G. mosseae, and G. intraradices began 3, 6, and 6 days after inoculation and, after 21 days, reached 60%, 13%, and 10%, respectively. In a second experiment, rapid colonization by G. deserticola took place in 3-day-old onion seedlings and increased to 51% 3 days after inoculation. Ten- and 17-day-old seedlings were far less responsive to VAM colonization but became highly infected at 30 days when new roots were produced. In a third experiment, inoculum placement 3 cm below seeds at planting in the field was the most effective for promoting colonization of cotton and onion by VAM. In fumigated field soil, mycorrhizae increased cotton growth an average of 28% when inoculum was applied below seeds compared to one- or two-sided band applications. Even in nonfumigated field soil, inoculum placed 3 cm below the seed and inoculum placed in a band at one side 2 weeks after planting significantly increased cotton growth. In onion, mycorrhizal inoculation improved growth in fumigated soil when it was placed below the seed, but did not stimulate growth in nonfumigated soil.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 18

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Onion colonization by Glomus deserticola began at day 3 and reached 50% root length at day 21.

Taxon
onionAllium cepae0
Treatment
inoculatione0
Interactor
Glomus deserticolaSeptoglomus deserticolae0symbiontt0
Outcome
Colonization of onione0
Value
50%e0

Not reportedComparatorDirection

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

“Colonization of onion by Glomus deserticola began 3 days after inoculation and reached 50% of the total root length after 21 days.”

✓ located verbatim in the source · abstract, characters 277–407 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Onion colonization by G. mosseae began after 12 days and reached 15% after 21 days.

Taxon
onionAllium cepat0
Interactor
G. mosseaeFunneliformis mosseaee0symbiontt0
Outcome
Colonizatione0
Value
15%e0
Qualifier
after 21 dayse0

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 ↗
Funneliformis mosseae
Funneliformis mosseae · Interactor · picture from its Wikimedia Commons categorySamson90 · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Colonization by G. mosseae and G. intraradices began after 12 days and attained 15% and 37%, respectively, after 21 days.”

✓ located verbatim in the source · abstract, characters 408–529 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 102–107 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Onion colonization by G. intraradices began after 12 days and reached 37% after 21 days.

Taxon
onionAllium cepat0
Interactor
G. intraradicesRhizophagus intraradicese0symbiontt0
Outcome
Colonizatione0
Value
37%e0
Qualifier
after 21 dayse0

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

“Colonization by G. mosseae and G. intraradices began after 12 days and attained 15% and 37%, respectively, after 21 days.”

✓ located verbatim in the source · abstract, characters 408–529 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 102–107 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cotton colonization with G. deserticola began at 12 days and increased to 20% at 21 days.

Interactor
G. deserticolaSeptoglomus deserticolae0symbiontt0
Outcome
colonizatione0
Direction
increasede0
Value
20%e0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In cotton, colonization with G. deserticola and G. intraradices began 12 days following inoculation and increased to 20% and 18%, respectively, after 21 days.”

✓ located verbatim in the source · abstract, characters 530–688 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cotton colonization with G. intraradices began at 12 days and increased to 18% at 21 days.

Interactor
G. intraradicesRhizophagus intraradicese0symbiontt0
Outcome
colonizatione0
Direction
increasede0
Value
18%e0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In cotton, colonization with G. deserticola and G. intraradices began 12 days following inoculation and increased to 20% and 18%, respectively, after 21 days.”

✓ located verbatim in the source · abstract, characters 530–688 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Cotton colonization by G. mosseae was poor.

Interactor
G. mosseaeFunneliformis mosseaee0symbiontt0
Outcome
Colonization of cottone0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗
Funneliformis mosseae
Funneliformis mosseae · Interactor · picture from its Wikimedia Commons categorySamson90 · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Colonization of cotton by G. mosseae was poor.”

✓ located verbatim in the source · abstract, characters 689–735 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pepper colonization with G. deserticola reached 60% after 21 days.

Taxon
peppere0
Interactor
G. deserticolaSeptoglomus deserticolae0symbiontt0
Outcome
colonizatione0
Value
60%e0

Verbatim

e0

“In pepper, colonization with G. deserticola, G. mosseae, and G. intraradices began 3, 6, and 6 days after inoculation and, after 21 days, reached 60%, 13%, and 10%, respectively.”

✓ located verbatim in the source · abstract, characters 736–914 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pepper colonization with G. mosseae reached 13% after 21 days.

Taxon
peppere0
Interactor
G. mosseaeFunneliformis mosseaee0symbiontt0
Outcome
colonizatione0
Value
13%e0

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

Funneliformis mosseae
Funneliformis mosseae · Interactor · picture from its Wikimedia Commons categorySamson90 · CC0 · Wikimedia Commons ↗

Verbatim

e0

“In pepper, colonization with G. deserticola, G. mosseae, and G. intraradices began 3, 6, and 6 days after inoculation and, after 21 days, reached 60%, 13%, and 10%, respectively.”

✓ located verbatim in the source · abstract, characters 736–914 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pepper colonization with G. intraradices reached 10% after 21 days.

Taxon
peppere0
Interactor
G. intraradicesRhizophagus intraradicese0symbiontt0
Outcome
colonizatione0
Value
10%e0

Verbatim

e0

“In pepper, colonization with G. deserticola, G. mosseae, and G. intraradices began 3, 6, and 6 days after inoculation and, after 21 days, reached 60%, 13%, and 10%, respectively.”

✓ located verbatim in the source · abstract, characters 736–914 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

G. deserticola rapidly colonized 3-day-old onion seedlings, reaching 51% three days after inoculation.

Taxon
onionAllium cepae0
Organ / stage
3-day-old onion seedlingse0
Interactor
G. deserticolaSeptoglomus deserticolae0symbiontt0
Outcome
colonizatione0
Direction
increasede0
Value
51%e0

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

“rapid colonization by G. deserticola took place in 3-day-old onion seedlings and increased to 51% 3 days after inoculation.”

✓ located verbatim in the source · abstract, characters 939–1062 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Older onion seedlings were less responsive to VAM colonization but became highly infected at 30 days with new roots.

Taxon
OnionAllium cepat0
Organ / stage
Ten- and 17-day-old seedlingse0
Interactor
VAMe0symbiontt0
Outcome
VAM colonizatione0
Direction
far less responsivee0

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

“Ten- and 17-day-old seedlings were far less responsive to VAM colonization but became highly infected at 30 days when new roots were produced.”

✓ located verbatim in the source · abstract, characters 1063–1205 · show in text ↑
t0

“Colonization of Cotton, Onion, and Pepper Seedlings”

✓ located verbatim in the source · title, characters 78–129 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Placing VAM inoculum 3 cm below cotton seeds was most effective for colonization.

Treatment
inoculum placement 3 cm below seedse0
Interactor
VAMe0symbiontt0
Outcome
colonizatione0
Direction
most effectivee0
Setting
fielde0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“inoculum placement 3 cm below seeds at planting in the field was the most effective for promoting colonization of cotton and onion by VAM.”

✓ located verbatim in the source · abstract, characters 1229–1367 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Placing VAM inoculum 3 cm below onion seeds was most effective for colonization.

Taxon
onionAllium cepae0
Treatment
inoculum placement 3 cm below seedse0
Interactor
VAMe0symbiontt0
Outcome
colonizatione0
Direction
most effectivee0
Setting
fielde0

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

“inoculum placement 3 cm below seeds at planting in the field was the most effective for promoting colonization of cotton and onion by VAM.”

✓ located verbatim in the source · abstract, characters 1229–1367 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Below-seed mycorrhizal inoculum increased cotton growth by an average 28% against band applications in fumigated field soil.

Treatment
inoculum was applied below seedse0
Interactor
mycorrhizaee0symbiontt0
Outcome
cotton growthe0
Direction
increasede0
Value
28%e0
Comparator
one- or two-sided band applicationse0
Setting
fumigated field soile0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In fumigated field soil, mycorrhizae increased cotton growth an average of 28% when inoculum was applied below seeds compared to one- or two-sided band applications.”

✓ located verbatim in the source · abstract, characters 1368–1533 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

inoculum placed 3 cm below the seed significantly increased cotton growth in nonfumigated field soil.

Treatment
inoculum placed 3 cm below the seede0
Interactor
inoculume0symbiontt0
Outcome
cotton growthe0
Direction
increasede0
Setting
nonfumigated field soile0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Even in nonfumigated field soil, inoculum placed 3 cm below the seed and inoculum placed in a band at one side 2 weeks after planting significantly increased cotton growth.”

✓ located verbatim in the source · abstract, characters 1534–1706 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

inoculum placed in a band at one side 2 weeks after planting significantly increased cotton growth in nonfumigated field soil.

Treatment
inoculum placed in a band at one side 2 weeks after plantinge0
Interactor
inoculume0symbiontt0
Outcome
cotton growthe0
Direction
increasede0
Setting
nonfumigated field soile0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Even in nonfumigated field soil, inoculum placed 3 cm below the seed and inoculum placed in a band at one side 2 weeks after planting significantly increased cotton growth.”

✓ located verbatim in the source · abstract, characters 1534–1706 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mycorrhizal inoculation improved onion growth in fumigated soil.

Taxon
onionAllium cepae0
Treatment
mycorrhizal inoculatione0
Interactor
mycorrhizale0symbiontt0
Outcome
growthe0
Direction
improvede0
Setting
fumigated soile0

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

“In onion, mycorrhizal inoculation improved growth in fumigated soil when it was placed below the seed, but did not stimulate growth in nonfumigated soil.”

✓ located verbatim in the source · abstract, characters 1707–1860 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Mycorrhizal inoculation did not stimulate onion growth in nonfumigated soil.

Taxon
onionAllium cepae0
Treatment
mycorrhizal inoculatione0
Interactor
mycorrhizale0symbiontt0
Outcome
growthe0
Direction
did not stimulatee0
Setting
nonfumigated soile0

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

“In onion, mycorrhizal inoculation improved growth in fumigated soil when it was placed below the seed, but did not stimulate growth in nonfumigated soil.”

✓ located verbatim in the source · abstract, characters 1707–1860 · show in text ↑
t0

“Mycorrhizal Species”

✓ located verbatim in the source · title, characters 0–19 · show in text ↑

mycorrhiza · growth · Allium cepa (onion)Results differ

53 papers: 48 positive, 5 negative or no effect

47 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative

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

49 papers more in this group

See all 53 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 · disease · Gossypium hirsutum (cotton)Positive and negative results

42 papers: 18 positive, 24 negative or no effect

17 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

38 papers more in this group

See all 42 papers →

inoculation · disease · Allium cepa (onion)Positive and negative results

49 papers: 22 positive, 27 negative or no effect

21 papers in the same direction as this paper · 27 in the opposite direction

  1. negative
  2. negative
  3. negative

45 papers more in this group

See all 49 papers →

inoculation · growth · Gossypium hirsutum (cotton)Positive and negative results

73 papers: 61 positive, 12 negative or no effect

60 papers in the same direction as this paper · 12 in the opposite direction

  1. negative
  2. negative
  3. no effect

69 papers more in this group

See all 73 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.