Abstract
The present study intended to investigate the effect of aqueous extract from Calotropis procera L. on growth of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) and some pathogenic microorganisms (Escherichia coli L. and Staphylococcus aureus R.) by the laboratory experiments. Also, phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids). Results showed that higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control. In contrast, the aqueous extract had not effect on seed germination percentage of barley but had a great inhibition effect on length of radicle and plumule. Also results showed that aqueous extract of C. procera effect on the pathogenic microorganisms Escherichia coli L. and Staphylococcus aureus R. in which there was a marked increase inhibition in growth of two microorganisms with the higher concentration. The main component of C. procera may be phenolics compound and flavonoids that may be responsible for their action on seed germination of the studied plants and growth of two tested microorganisms.
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Claims 8
Claim · model-written summary
Higher Calotropis extract concentrations significantly reduced wheat germination percentage versus control.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- C. procera extract (7% and 10%)e0
- Outcome
- germination percentagee0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”
Claim · model-written summary
Higher Calotropis extract concentrations significantly reduced wheat radicle length versus control.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- C. procera extract (7% and 10%)e0
- Outcome
- radicle lengthe0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”
Claim · model-written summary
Higher Calotropis extract concentrations significantly reduced wheat plumule length versus control.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- C. procera extract (7% and 10%)e0
- Outcome
- plumule lengthe0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“higher concentrations of C. procera extract (7% and 10%) significantly reduced germination percentage, radicle length and plumule length of wheat as compared to control”
Claim · model-written summary
Calotropis aqueous extract did not affect barley seed germination percentage.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- aqueous extracte0
- Outcome
- seed germination percentagee0
- Direction
- not effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the aqueous extract had not effect on seed germination percentage of barley”
Claim · model-written summary
Calotropis aqueous extract inhibited barley radicle and plumule length.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- aqueous extracte0
- Outcome
- length of radicle and plumulee0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the aqueous extract had not effect on seed germination percentage of barley but had a great inhibition effect on length of radicle and plumule”
Claim · model-written summary
The Calotropis extract contained alkaloids, phenolics and flavonoids.
- Taxon
- C. procera
Calotropis procerae0 - Outcome
- presence of some bioactive compounds (alkaloids, phenolics, flavonoidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”
Claim · model-written summary
The Calotropis extract contained tannins, saponins and sterols.
- Taxon
- C. procera
Calotropis procerae0 - Outcome
- tannins, saponins, sterolse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”
Claim · model-written summary
The Calotropis extract contained terpenoids.
- Taxon
- C. procera
Calotropis procerae0 - Outcome
- terpenoidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“phytochemical screening of aqueous extract of C. procera was qualitatively tested for the presence of some bioactive compounds (alkaloids, phenolics, flavonoids, tannins, saponins, sterols and terpenoids)”
The same questions in other papers
Calotropis procera · growth · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- negative
- negative
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botanical · growth · Hordeum vulgare (barley)Positive and negative results
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See all 84 papers →botanical · growth · Triticum aestivum (wheat)Positive and negative results
228 papers in the same direction as this paper · 206 in the opposite direction
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See all 435 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.