Abstract
In order to evaluate the allelopathic effects of aqueous extract of bindweed, Convolvulus arvensis different organs on germination and growth of barley, Hordeum vulgare (cv. Abidar), an experiment was conducted as factorial based on completely randomized design with three replications in the laboratory and greenhouse of Islamic Azad University, Miyaneh Branch. Experimental factors comprised bindweed organs at four levels (leaf, root, stem and flower) and aqueous extracts of bindweed organs at 2.5, 5 and 10% concentrations and distilled water was considered as a control. Traits including germination rate, stem and root length, and fresh and dry weight of barley seedlings were measured. Analysis of variance results showed significant effects of interaction of bindweed extract concentrations and organs on all above mentioned traits. Abidar was considered as a very sensitive barley cultivar to C. arvensis allelochemicals, so that its germination and initial growth were affected by weed organs' extracts. Allopathic effect of weed extracts on barley germination and growth was increased as the extract concentrations increased. Based on the results, extracts of the bindweed different organs showed the same toxic effects on barley germination rate, fresh weight and dry weight of barley seedlings. However, the least adverse effects of bindweed allelochemicals on barley stem and root length were caused by leaf extract of the weed. Based on the results, extension of farming Abidar cultivar most probably will increase allelopathic induced damage of bindweed to barley. Key w ords: Al lelopathy, Weed organs, Convolvulus arvensis, Growth, Germination, Barley, Abidar cultivar.
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Claims 6
Claim · model-written summary
The interaction of bindweed extract concentrations and organs had significant effects on all measured barley traits (germination rate, stem and root length, fresh and dry weight).
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Material
- Abidart0
- Treatment
- bindweed extract concentrations and organse0
- Interactor
- bindweede0weed
- Outcome
- all above mentioned traitse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Analysis of variance results showed significant effects of interaction of bindweed extract concentrations and organs on all above mentioned traits”
t0“Abidar barley ( Hordeum vulgare)”
Claim · model-written summary
Abidar was a very sensitive barley cultivar to C. arvensis allelochemicals; its germination and initial growth were affected by the weed organ extracts.
- Taxon
- barleyHordeum vulgaree0
- Material
- Abidare0
- Treatment
- C. arvensis allelochemicalse0
- Interactor
- C. arvensis
.jpg?width=60)
Convolvulus arvensise0weed - Outcome
- germination and initial growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Abidar was considered as a very sensitive barley cultivar to C. arvensis allelochemicals, so that its germination and initial growth were affected by weed organs' extracts”
Claim · model-written summary
The allelopathic effect of weed extracts on barley germination and growth increased as extract concentration increased.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- extract concentrationse0
- Interactor
- weede0weed
- Outcome
- Allopathic effecte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allopathic effect of weed extracts on barley germination and growth was increased as the extract concentrations increased”
Claim · model-written summary
Extracts of different bindweed organs had the same toxic effects on barley germination rate and on fresh and dry weight of seedlings.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- extracts of the bindweed different organse0
- Interactor
- bindweede0weed
- Outcome
- germination rate, fresh weight and dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts of the bindweed different organs showed the same toxic effects on barley germination rate, fresh weight and dry weight of barley seedlings”
Claim · model-written summary
The least adverse effects of bindweed allelochemicals on barley stem and root length were caused by the leaf extract.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- leaf extracte0
- Interactor
- bindweede0weed
- Outcome
- stem and root lengthe0
- Direction
- least adversee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the least adverse effects of bindweed allelochemicals on barley stem and root length were caused by leaf extract of the weed”
Claim · model-written summary
The authors infer that extending farming of the Abidar cultivar will most probably increase allelopathic damage of bindweed to barley.
- Taxon
- barleyHordeum vulgaree0
- Interactor
- bindweede0weed
- Outcome
- allelopathic induced damagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extension of farming Abidar cultivar most probably will increase allelopathic induced damage of bindweed to barley”
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