Paper · 2025 · BIMA JOURNAL OF SCIENCE AND TECHNOLOGY GOMBE

Allelopathic Effect of Ivory Coast Almond (Terminalia ivorensis A. Chev.) Leaf Aqueous Extract on Germination and Early Seedling Growth of Maize (Zea mays L.) Cultivars

A. S. Lawal; Ogunronbi O. E.; AliyU M.; et al.

6
claims
6
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

Wider distribution of Ivory Coast Almond (Terminalia ivorensis) into farmland areas, is getting worrisome in northern part of Nigeria. This study therefore aimed to evaluate the allelopathic effect of T. ivorensis aqueous leaf extract on germination percentage and seedling growth of some cultivated maize cultivars (EWH-79, EEWH-123 & TZE-YDT-STR). Petri dish experiment was conducted in the laboratory of Federal University Gusau. Different concentrations of 0% (Distilled water), 5%, 25%, 50% and 100% were prepared from 10g/L crude extract. Germination percentage, length of radicle and plumule were determined. The findings of this study showed Allelopathic interaction of T. ivorensis aqueous leaf extract on germination percentage of the three maize cultivars has no significant effect compared with the Control (P > 0.05). Inhibitory effect of T. ivorensis aqueous leaf extract on plumule length of all the maize cultivars was observed to be significant (P< 0.05). EWH-79 and EEWH-123 showed no variation with the control at 5% of the extract concentration. Furthermore, no pronounced allelopathic effect between the aqueous leaf extract and the control in the radicle length of all the maize cultivars. This study delineated allelochemicals of T. ivorensis inhibits plumule development of the cultivars which in turn affects the plant physiology. The inhibition in increasing order of EWH-79 > EEWH > TZE-YDT-STR.

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Claims 6

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Terminalia leaf extract did not significantly change germination percentage of three maize cultivars.

Taxon
maizeZea mayse0
Treatment
T. ivorensis aqueous leaf extracte0
Interactor
T. ivorensisTerminalia ivorensise0other
Outcome
germination percentagee0
Direction
no significant effecte0
Comparator
Controle0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Allelopathic interaction of T. ivorensis aqueous leaf extract on germination percentage of the three maize cultivars has no significant effect compared with the Control (P > 0.05)”

✓ located verbatim in the source · abstract, characters 650–829 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Terminalia leaf extract significantly inhibited plumule length in all maize cultivars.

Taxon
maizeZea mayse0
Treatment
T. ivorensis aqueous leaf extracte0
Interactor
T. ivorensisTerminalia ivorensise0other
Outcome
plumule lengthe0
Direction
Inhibitorye0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Inhibitory effect of T. ivorensis aqueous leaf extract on plumule length of all the maize cultivars was observed to be significant (P< 0.05)”

✓ located verbatim in the source · abstract, characters 831–971 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 5% extract, EWH-79 did not differ from the control.

Material
EWH-79e0
Treatment
5% of the extract concentratione0
Outcome
variatione0
Direction
no variatione0
Comparator
controle0

Not reportedTaxon

Verbatim

e0

“EWH-79 and EEWH-123 showed no variation with the control at 5% of the extract concentration”

✓ located verbatim in the source · abstract, characters 973–1064 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 5% extract, EEWH-123 did not differ from the control.

Material
EEWH-123e0
Treatment
5% of the extract concentratione0
Outcome
variatione0
Direction
no variatione0
Comparator
controle0

Not reportedTaxon

Verbatim

e0

“EWH-79 and EEWH-123 showed no variation with the control at 5% of the extract concentration”

✓ located verbatim in the source · abstract, characters 973–1064 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Terminalia extract had no pronounced effect on radicle length across maize cultivars.

Taxon
maizeZea mayse0
Treatment
aqueous leaf extracte0
Outcome
radicle lengthe0
Direction
no pronounced allelopathic effecte0
Comparator
controle0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“no pronounced allelopathic effect between the aqueous leaf extract and the control in the radicle length of all the maize cultivars”

✓ located verbatim in the source · abstract, characters 1079–1210 · show in text ↑
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The authors attribute inhibition of maize plumule development to Terminalia allelochemicals.

Interactor
T. ivorensisTerminalia ivorensise0other
Compound
allelochemicals of T. ivorensise0
Outcome
plumule developmente0
Direction
inhibitse0

Not reportedTaxon

Verbatim

e0

“allelochemicals of T. ivorensis inhibits plumule development of the cultivars which in turn affects the plant physiology”

✓ located verbatim in the source · abstract, characters 1234–1354 · show in text ↑

botanical · growth · Zea mays (maize)Positive and negative results

340 papers: 198 positive, 142 negative or no effect

141 papers in the same direction as this paper · 198 in the opposite direction

  1. positive
  2. positive
  3. positive

336 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.