Abstract
To evaluate probable allelopathic effect of water extract originated from different parts of russian knapweed (Acroptilon repens L.) on growth of purslane (Portulaca oleracea L.), a factorial experiment was conducted based on randomized complete block design with three replications at greenhouse condition in 2011. Treatments were water extract concentrations (0, 5, 10, 15 and 20 percent) obtained from different part of russian knapweed (aerial part, flower and root). Results showed the significant effect of extract type on seedling length, and extract concentration on shoot length, root length and seedling length. Interaction effect between extract type and concentration on the ratio of root/shoot length, seedling fresh weight, seedling dry weight and germination percentage was significant, too. Means comparison indicated that the longest root (3.55 cm), shoot (4.65 cm) and seedling (8.20 cm) were obtained from control treatment, reducing with higher concentration of extract. The longest shoot (6.95 cm) belonged to extract originated from russian knapweed flowers. The highest ratio of root/shoot length (0.73), seedling fresh weight (0.61g) and seedling dry weight (0.044 g) belonged to control treatment. In general, increasing of extract concentration caused in reduction of germination and seedling traits. Meanwhile, extracts of aerial part had more sever reducing effect than root and flower extracts.
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Claims 12
Claim · model-written summary
Extract type significantly affected seedling length.
- Taxon
- purslane (Portulaca oleracea L.)
Portulaca oleraceat0 - Treatment
- extract typee0
- Interactor
- russian knapweed
Leuzea repenst0weed - Outcome
- seedling lengthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant effect of extract type on seedling length”
t0“russian knapweed (Acroptilon repens L.) on growth of purslane (Portulaca oleracea L.)”
Claim · model-written summary
Extract concentration significantly affected shoot, root, and seedling length.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- extract concentratione0
- Interactor
- russian knapweedLeuzea repenst0weed
- Outcome
- shoot length, root length and seedling lengthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extract concentration on shoot length, root length and seedling length”
t0“russian knapweed (Acroptilon repens L.) on growth of purslane (Portulaca oleracea L.)”
Claim · model-written summary
Extract type and concentration interacted significantly for root-to-shoot ratio, seedling weights, and germination.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- extract type and concentratione0
- Interactor
- russian knapweedLeuzea repenst0weed
- Outcome
- ratio of root/shoot length, seedling fresh weight, seedling dry weight and germination percentagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interaction effect between extract type and concentration on the ratio of root/shoot length, seedling fresh weight, seedling dry weight and germination percentage was significant”
t0“russian knapweed (Acroptilon repens L.) on growth of purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control roots reached 3.55 cm and declined with higher extract concentration.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- higher concentration of extracte0
- Outcome
- roote0
- Direction
- reducinge0
- Value
- 3.55 cme0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“longest root (3.55 cm), shoot (4.65 cm) and seedling (8.20 cm) were obtained from control treatment, reducing with higher concentration of extract”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control shoots reached 4.65 cm and declined with higher extract concentration.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- higher concentration of extracte0
- Outcome
- shoote0
- Direction
- reducinge0
- Value
- 4.65 cme0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“longest root (3.55 cm), shoot (4.65 cm) and seedling (8.20 cm) were obtained from control treatment, reducing with higher concentration of extract”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control seedlings reached 8.20 cm and declined with higher extract concentration.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- higher concentration of extracte0
- Outcome
- seedlinge0
- Direction
- reducinge0
- Value
- 8.20 cme0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“longest root (3.55 cm), shoot (4.65 cm) and seedling (8.20 cm) were obtained from control treatment, reducing with higher concentration of extract”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Flower extract produced the longest shoot, 6.95 cm.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- extract originated from russian knapweed flowerse0
- Interactor
- russian knapweedLeuzea repense0weed
- Outcome
- shoote0
- Direction
- longeste0
- Value
- 6.95 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The longest shoot (6.95 cm) belonged to extract originated from russian knapweed flowers”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control seedlings had the highest root-to-shoot ratio, 0.73.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- control treatmente0
- Outcome
- ratio of root/shoot lengthe0
- Direction
- higheste0
- Value
- 0.73e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest ratio of root/shoot length (0.73), seedling fresh weight (0.61g) and seedling dry weight (0.044 g) belonged to control treatment”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control seedlings had the highest fresh weight, 0.61g.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- control treatmente0
- Outcome
- seedling fresh weighte0
- Direction
- higheste0
- Value
- 0.61ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest ratio of root/shoot length (0.73), seedling fresh weight (0.61g) and seedling dry weight (0.044 g) belonged to control treatment”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Control seedlings had the highest dry weight, 0.044 g.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- control treatmente0
- Outcome
- seedling dry weighte0
- Direction
- higheste0
- Value
- 0.044 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest ratio of root/shoot length (0.73), seedling fresh weight (0.61g) and seedling dry weight (0.044 g) belonged to control treatment”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Increasing extract concentration reduced germination.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- increasing of extract concentratione0
- Outcome
- germinatione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing of extract concentration caused in reduction of germination and seedling traits”
t0“purslane (Portulaca oleracea L.)”
Claim · model-written summary
Aerial-part extract reduced seedlings more severely than root and flower extracts.
- Taxon
- purslane (Portulaca oleracea L.)Portulaca oleraceat0
- Treatment
- extracts of aerial parte0
- Outcome
- reducing effecte0
- Direction
- more sever reducinge0
- Comparator
- root and flower extractse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts of aerial part had more sever reducing effect than root and flower extracts”
t0“purslane (Portulaca oleracea L.)”
The same questions in other papers
botanical · growth · Portulaca oleraceaPositive and negative results
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