Abstract
During the 2006-2007 period, the allelopathic effect of cold water extracts from Amaranthus retroflexus L., Chenopodium album L., Erigeron canadensis L. and Solanum nigrum L. on seed germination and initial development of Glycine max L., Pisum sativum L. and Vicia sativa L. was studied under laboratory conditions in the Institute of Forage Crops, Pleven. It was found that: water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5% and for the extracts from dry weed biomass it was from 26.8 t? 89.2%; The values of LC50 varied from 13.5 t? 72.2 g l-1 for the extracts from fresh biomass and from 7.0 t? 84.1 g l-1 for the extracts from dry weed biomass and they could be conditionally grouped in the following ascending order: A. retroflexus < S. nigrum < E. canadensis <Ch. album and for extracts from dry biomass: A. retroflexus < E. ?anadensis < Ch. album < S. nigrum; P. sativum was the most sensitive to the allelopathic effect of the extracts from fresh and dry weed biomass - LC50 varied from 13.5 t? 21.6 g l-1, followed by V. sativa - LC50 from 26.0 t? 11.7 g l-1 and G. max had relatively the lowest sensitivity - LC50 was from 46.6 t? 56.7 g l-1.
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Claims 11
Claim · model-written summary
Fresh weed biomass extracts inhibited G. max germination, with pooled inhibition of 28.8 to 81.5%.
- Taxon
- G. max
Glycine maxe0 - Treatment
- extracts from fresh biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 28.8 to 81.5%e0
- Qualifier
- A. retroflexus, Ch. album, E. canadensis and S. nigrume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5%”
Claim · model-written summary
Fresh weed biomass extracts inhibited P. sativum germination, with pooled inhibition of 28.8 to 81.5%.
- Taxon
- P. sativum
Lathyrus oleraceuse0 - Treatment
- extracts from fresh biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 28.8 to 81.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5%”
Claim · model-written summary
Fresh weed biomass extracts inhibited V. sativa germination, with pooled inhibition of 28.8 to 81.5%.
- Taxon
- V. sativa
_Vicia_sativa.jpg?width=60)
Vicia sativae0 - Treatment
- extracts from fresh biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 28.8 to 81.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Vicia_sativa.jpg?width=500)
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5%”
Claim · model-written summary
Dry weed biomass extracts inhibited G. max germination, with pooled inhibition of 26.8 t? 89.2%.
- Taxon
- G. maxGlycine maxe0
- Treatment
- extracts from dry weed biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 26.8 t? 89.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5% and for the extracts from dry weed biomass it was from 26.8 t? 89.2%”
Claim · model-written summary
Dry weed biomass extracts inhibited P. sativum germination, with pooled inhibition of 26.8 t? 89.2%.
- Taxon
- P. sativumLathyrus oleraceuse0
- Treatment
- extracts from dry weed biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 26.8 t? 89.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5% and for the extracts from dry weed biomass it was from 26.8 t? 89.2%”
Claim · model-written summary
Dry weed biomass extracts inhibited V. sativa germination, with pooled inhibition of 26.8 t? 89.2%.
- Taxon
- V. sativaVicia sativae0
- Treatment
- extracts from dry weed biomasse0
- Outcome
- seed germinatione0
- Direction
- inhibitorye0
- Value
- 26.8 t? 89.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts from fresh and dry biomass of A. retroflexus, Ch. album, E. canadensis and S. nigrum had an inhibitory effect on seed germination of G. max, P. sativum and V. sativa, the inhibition rate for the extracts from fresh biomass varying from 28.8 to 81.5% and for the extracts from dry weed biomass it was from 26.8 t? 89.2%”
Claim · model-written summary
Fresh biomass extract LC50 ranged from 13.5 t? 72.2 g l-1 and increased in the stated weed order.
- Treatment
- extracts from fresh biomasse0
- Outcome
- LC50e0
- Direction
- ascendinge0
- Value
- 13.5 t? 72.2 g l-1e0
- Qualifier
- A. retroflexus < S. nigrum < E. canadensis <Ch. albume0
Not reportedTaxon
Verbatim
e0“The values of LC50 varied from 13.5 t? 72.2 g l-1 for the extracts from fresh biomass and from 7.0 t? 84.1 g l-1 for the extracts from dry weed biomass and they could be conditionally grouped in the following ascending order: A. retroflexus < S. nigrum < E. canadensis <Ch. album”
Claim · model-written summary
Dry biomass extract LC50 ranged from 7.0 t? 84.1 g l-1, with the stated ascending weed order.
- Treatment
- extracts from dry biomasse0
- Direction
- ascendinge0
- Value
- 7.0 t? 84.1 g l-1e0
- Qualifier
- A. retroflexus < E. ?anadensis < Ch. album < S. nigrume0
Not reportedTaxonOutcome
Verbatim
e0“from 7.0 t? 84.1 g l-1 for the extracts from dry weed biomass and they could be conditionally grouped in the following ascending order: A. retroflexus < S. nigrum < E. canadensis <Ch. album and for extracts from dry biomass: A. retroflexus < E. ?anadensis < Ch. album < S. nigrum”
Claim · model-written summary
P. sativum was most sensitive to fresh and dry weed extracts, with LC50 of 13.5 t? 21.6 g l-1.
- Taxon
- P. sativumLathyrus oleraceuse0
- Outcome
- LC50e0
- Value
- 13.5 t? 21.6 g l-1e0
- Qualifier
- most sensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. sativum was the most sensitive to the allelopathic effect of the extracts from fresh and dry weed biomass - LC50 varied from 13.5 t? 21.6 g l-1”
Claim · model-written summary
V. sativa followed P. sativum in sensitivity, with LC50 from 26.0 t? 11.7 g l-1.
- Taxon
- V. sativaVicia sativae0
- Outcome
- LC50e0
- Value
- 26.0 t? 11.7 g l-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by V. sativa - LC50 from 26.0 t? 11.7 g l-1”
Claim · model-written summary
G. max had the lowest sensitivity, with LC50 from 46.6 t? 56.7 g l-1.
- Taxon
- G. maxGlycine maxe0
- Outcome
- LC50e0
- Value
- 46.6 t? 56.7 g l-1e0
- Qualifier
- relatively the lowest sensitivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. max had relatively the lowest sensitivity - LC50 was from 46.6 t? 56.7 g l-1”
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