Paper · 2017 · International Educational Applied Scientific Research Journal

PHYTOTOXIC EFFECT OF TECTONA GRANDIS(L.f.) LEAF EXTRACTS ON GROWTH AND DEVELOPMENTAL CHANGES OF PENNISETUM GLAUCUM (L.) R.BR. AND ELEUSINE CORACANA (Gaertn)

P. Leela

7
claims
12
verbatim quotes
2
citations
3
research areas
—
Not open access

Abstract

The present study investigates the growth and developmental changes of Pearlmillet [(Pennisetum glaucum (L.) R.Br.)] and Ragi [Eleusine coracana (Gaertn )] under pot culture experiments with different concentrations of aqueous leaf extracts (5, 10, 20, 30 and 50g/l) of Teak. Teak leaf extracts showed an inhibitory and stimulatory effects on germination, seedling length, biomass, pigments and biochemical constituents of pearl millet and ragi. The 5g/l concentration of extract stimulated the seed germination, seedling growth and biochemical constituents of pearl millet and ragi.. The higher concentrations (10, 20, 30and 50g/l) showed an inhibitory effects in all the parameters studied in the two economically important cereals. The degree of retardation was dependent on the concentration of the Teak leaf extracts. Root length, Shoot length, Biomass and Biochemical constituents of ragi seedlings were highly reduced at 50g/l concentrations of aqueous leaf extracts of Teak. Between pearl millet and ragi seedlings, more allelopathic influence was observed in ragi than pearl millet seedlings.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 5g/l, Teak extract stimulated pearl millet germination, seedling growth and biochemical constituents.

Taxon
pearl milletCenchrus americanuse0
Treatment
5g/l concentration of extracte0
Interactor
Teake1other
Outcome
seed germination, seedling growth and biochemical constituentse0
Direction
stimulatede0

Not reportedComparator

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

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The 5g/l concentration of extract stimulated the seed germination, seedling growth and biochemical constituents of pearl millet and ragi”

✓ located verbatim in the source · abstract, characters 446–582 · show in text ↑
e1

“leaf extracts (5, 10, 20, 30 and 50g/l) of Teak”

✓ located verbatim in the source · abstract, characters 227–274 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 5g/l, Teak extract stimulated ragi germination, seedling growth and biochemical constituents.

Treatment
5g/l concentration of extracte0
Interactor
Teake1other
Outcome
seed germination, seedling growth and biochemical constituentse0
Direction
stimulatede0

Not reportedComparator

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

Eleusine coracana
Eleusine coracana · TaxonAgnieszka Kwiecień, Nova · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The 5g/l concentration of extract stimulated the seed germination, seedling growth and biochemical constituents of pearl millet and ragi”

✓ located verbatim in the source · abstract, characters 446–582 · show in text ↑
e1

“leaf extracts (5, 10, 20, 30 and 50g/l) of Teak”

✓ located verbatim in the source · abstract, characters 227–274 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher Teak extract concentrations inhibited measured pearl millet parameters.

Taxon
pearl milletCenchrus americanuse1
Treatment
higher concentrations (10, 20, 30and 50g/l)e0
Outcome
all the parameters studiede0
Direction
inhibitorye0

Not reportedComparator

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

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The higher concentrations (10, 20, 30and 50g/l) showed an inhibitory effects in all the parameters studied in the two economically important cereals”

✓ located verbatim in the source · abstract, characters 585–733 · show in text ↑
e1

“pearl millet and ragi.. The higher concentrations”

✓ located verbatim in the source · abstract, characters 561–610 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher Teak extract concentrations inhibited measured ragi parameters.

Treatment
higher concentrations (10, 20, 30and 50g/l)e0
Outcome
all the parameters studiede0
Direction
inhibitorye0

Not reportedComparator

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

Eleusine coracana
Eleusine coracana · TaxonAgnieszka Kwiecień, Nova · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The higher concentrations (10, 20, 30and 50g/l) showed an inhibitory effects in all the parameters studied in the two economically important cereals”

✓ located verbatim in the source · abstract, characters 585–733 · show in text ↑
e1

“pearl millet and ragi.. The higher concentrations”

✓ located verbatim in the source · abstract, characters 561–610 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Teak extract retardation depended on concentration.

Taxon
pearl milletCenchrus americanuse1
Treatment
concentration of the Teak leaf extractse0
Outcome
degree of retardatione0

Not reportedDirection

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

Cenchrus americanus
Cenchrus americanus · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The degree of retardation was dependent on the concentration of the Teak leaf extracts”

✓ located verbatim in the source · abstract, characters 735–821 · show in text ↑
e1

“pearl millet and ragi.. The higher concentrations”

✓ located verbatim in the source · abstract, characters 561–610 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 50g/l, Teak extract greatly reduced ragi root and shoot length, biomass and biochemical constituents.

Treatment
50g/l concentrations of aqueous leaf extracts of Teake0
Interactor
Teake0other
Outcome
Root length, Shoot length, Biomass and Biochemical constituentse0
Direction
reducede0

Not reportedComparator

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

Eleusine coracana
Eleusine coracana · TaxonAgnieszka Kwiecień, Nova · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Root length, Shoot length, Biomass and Biochemical constituents of ragi seedlings were highly reduced at 50g/l concentrations of aqueous leaf extracts of Teak”

✓ located verbatim in the source · abstract, characters 823–981 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Ragi seedlings were more affected by allelopathy than pearl millet seedlings.

Outcome
allelopathic influencee0
Direction
moree0
Comparator
pearl millet seedlingse0

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

Eleusine coracana
Eleusine coracana · TaxonAgnieszka Kwiecień, Nova · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Between pearl millet and ragi seedlings, more allelopathic influence was observed in ragi than pearl millet seedlings”

✓ located verbatim in the source · abstract, characters 983–1100 · show in text ↑

botanical · growth · Eleusine coracana (finger millet)Positive and negative results

9 papers: 6 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. negative

5 papers more in this group

See all 9 papers →

botanical · growth · Cenchrus americanus (pearl millet)Positive and negative results

18 papers: 12 positive, 6 negative or no effect

11 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. negative
  3. negative

14 papers more in this group

See all 18 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.