Abstract
A laboratory experiment was conducted at Plant Protection Research Center, Ambo to assess allelopathic effect of aqueous extracts of Amaranthus hybridus, Parthenium hysterophorus, Datura stramonium and Argemone mexicana leaf, stem and root parts on seed germination, seedlings growth and biomass production of wheat cultivars; HAR-1685 and Durum wheat. Aqueous extracts at 1 g/ml ratio concentrations were prepared for each weed species plant parts uniformly and applied to seeds placed sparsely in petri dish. Highest wheat seed germination reduction (22%) was caused by leaf extract of P. hysterophorus. Uniformly more inhibition on radicle length of wheat seedlings was observed with leaf extracts of the test weed species than the other plant part extracts. Plumule length of the wheat seedlings were reduced by 60 and 40% due to leaf extracts of P. hysterophorus and A. hybridus. In general, the investigation showed that P. hysterophorus and A. hybridus plant leaf and stem extracts consistently cause considerable reduction on percent seed germination, respectively. In addition, leaves extract of both weed species gave the highest negative effect on radicle and plumule elongation of the seedlings. Thus, farmers shall be advised to give special attention in avoiding or minimizing those weed species from farm to contain their adverse effects on the crop.
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Claims 7
Claim · model-written summary
Parthenium hysterophorus leaf extract caused the greatest wheat germination reduction, 22%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- leaf extract of P. hysterophoruse0
- Interactor
- P. hysterophorus
Parthenium hysterophoruse0weed - Outcome
- seed germinatione0
- Direction
- reductione0
- Value
- 22%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest wheat seed germination reduction (22%) was caused by leaf extract of P. hysterophorus”
Claim · model-written summary
Leaf extracts of the tested weed species inhibited wheat radicle length more than extracts of other plant parts.
- Taxon
- wheatTriticum aestivume0
- Treatment
- leaf extracts of the test weed speciese0
- Outcome
- radicle lengthe0
- Direction
- more inhibitione0
- Comparator
- other plant part extractse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more inhibition on radicle length of wheat seedlings was observed with leaf extracts of the test weed species than the other plant part extracts”
Claim · model-written summary
Parthenium hysterophorus leaf extract reduced wheat plumule length by 60%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- leaf extracts of P. hysterophoruse0
- Interactor
- P. hysterophorusParthenium hysterophoruse0weed
- Outcome
- Plumule lengthe0
- Direction
- reducede0
- Value
- 60e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plumule length of the wheat seedlings were reduced by 60 and 40% due to leaf extracts of P. hysterophorus and A. hybridus”
Claim · model-written summary
Amaranthus hybridus leaf extract reduced wheat plumule length by 40%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- leaf extracts of P. hysterophorus and A. hybriduse0
- Interactor
- A. hybridus
Amaranthus hybriduse0weed - Outcome
- Plumule lengthe0
- Direction
- reducede0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plumule length of the wheat seedlings were reduced by 60 and 40% due to leaf extracts of P. hysterophorus and A. hybridus”
Claim · model-written summary
Parthenium hysterophorus and Amaranthus hybridus leaf and stem extracts consistently reduced wheat seed germination.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- P. hysterophorus and A. hybridus plant leaf and stem extractse0
- Interactor
- P. hysterophorusParthenium hysterophoruse0weed
- Outcome
- percent seed germinatione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. hysterophorus and A. hybridus plant leaf and stem extracts consistently cause considerable reduction on percent seed germination”
t0“wheat”
Claim · model-written summary
Leaves of both weeds had the strongest negative effect on wheat radicle and plumule elongation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- leaves extract of both weed speciese0
- Outcome
- radicle and plumule elongatione0
- Direction
- highest negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaves extract of both weed species gave the highest negative effect on radicle and plumule elongation of the seedlings”
t0“wheat”
Claim · model-written summary
The authors advise farmers to avoid or minimize the two weeds on farms.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- avoiding or minimizing those weed species from farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmers shall be advised to give special attention in avoiding or minimizing those weed species from farm to contain their adverse effects on the crop”
t0“wheat”
The same questions in other papers
Parthenium hysterophorus · growth · Triticum aestivum (wheat)Results agree
8 papers in the same direction as this paper
- negative
- no effect
- negative
5 papers more in this group
See all 9 papers →botanical · growth · Triticum aestivum (wheat)Positive and negative results
228 papers in the same direction as this paper · 206 in the opposite direction
- positive
- positive
- positive
431 papers more in this group
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.