Abstract
Allelopathic potentiality of hexane, ethyl acetate and methanol extracts of the Himalyan lichen, Parmelia reticulate Taylor, at different concentrations (50, 25 and 12.5 μg ml-1) was studied on germination and early seedling growth of highly devastating weed Phalaris minor. The experiments were carried out in portray maintained in natural environment. Current investigation has revealed concentration dependent allelopathic phenomenon of the lichen extracts on P. minor. Hexane and ethyl acetate extracts at 50 μg ml-1 exhibited maximum detrimental effect on seed germination (56% as compared to control i.e. 90%). Hexane extract at 50 μg ml-1 showed maximum inhibition of early seedling growths, determined in terms of shoot and root lengths of the test weed. It reduced shoot and root lengths to 2.5cm (control 10.7 cm) and 0.9 cm (control 3.4cm) respectively, indicating semipolar nature of constituents responsible for bioactivity.
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Claims 5
Claim · model-written summary
Lichen extract effects on P. minor were concentration dependent.
- Taxon
- P. minor
.jpg?width=60)
Phalaris minore0 - Treatment
- lichen extractse0
- Interactor
- Parmelia reticulate Taylore1other
- Outcome
- allelopathic phenomenone0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Current investigation has revealed concentration dependent allelopathic phenomenon of the lichen extracts on P. minor.”
e1“lichen, Parmelia reticulate Taylor”
Claim · model-written summary
Hexane extract at 50 μg ml-1 reduced weed seed germination to 56% versus 90% control.
- Taxon
- Phalaris minorPhalaris minore1
- Treatment
- Hexanee0
- Interactor
- Parmelia reticulate Taylore2other
- Outcome
- seed germinatione0
- Direction
- detrimentale0
- Value
- 56%e0
- Qualifier
- 90%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hexane and ethyl acetate extracts at 50 μg ml-1 exhibited maximum detrimental effect on seed germination (56% as compared to control i.e. 90%).”
e1“weed Phalaris minor”
e2“lichen, Parmelia reticulate Taylor”
Claim · model-written summary
Ethyl acetate extract at 50 μg ml-1 reduced weed seed germination to 56% versus 90% control.
- Taxon
- Phalaris minorPhalaris minore1
- Treatment
- ethyl acetate extracts at 50 μg ml-1e0
- Interactor
- Parmelia reticulate Taylore2other
- Outcome
- seed germinatione0
- Direction
- detrimentale0
- Value
- 56%e0
- Qualifier
- 90%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hexane and ethyl acetate extracts at 50 μg ml-1 exhibited maximum detrimental effect on seed germination (56% as compared to control i.e. 90%).”
e1“weed Phalaris minor”
e2“lichen, Parmelia reticulate Taylor”
Claim · model-written summary
Hexane extract reduced weed shoot length to 2.5cm versus 10.7 cm control.
- Taxon
- Phalaris minorPhalaris minore1
- Treatment
- Hexane extract at 50 μg ml-1e0
- Interactor
- Parmelia reticulate Taylore2other
- Outcome
- shoote0
- Direction
- reducede0
- Value
- 2.5cme0
- Qualifier
- 10.7 cme0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hexane extract at 50 μg ml-1 showed maximum inhibition of early seedling growths, determined in terms of shoot and root lengths of the test weed. It reduced shoot and root lengths to 2.5cm (control 10.7 cm) and 0.9 cm (control 3.4cm) respectively”
e1“weed Phalaris minor”
e2“lichen, Parmelia reticulate Taylor”
Claim · model-written summary
Hexane extract reduced weed root length to 0.9 cm versus 3.4cm control.
- Taxon
- Phalaris minorPhalaris minore1
- Treatment
- Hexane extract at 50 μg ml-1e0
- Interactor
- Parmelia reticulate Taylore2other
- Outcome
- root lengthse0
- Direction
- reducede0
- Value
- 0.9 cme0
- Qualifier
- 3.4cme0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hexane extract at 50 μg ml-1 showed maximum inhibition of early seedling growths, determined in terms of shoot and root lengths of the test weed. It reduced shoot and root lengths to 2.5cm (control 10.7 cm) and 0.9 cm (control 3.4cm) respectively”
e1“weed Phalaris minor”
e2“lichen, Parmelia reticulate Taylor”
The same questions in other papers
botanical · growth · Phalaris minor (littleseed canarygrass)Positive and negative results
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See all 17 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.