Abstract
Canola (Brassica napus L. cv. Hyola 420) seed germination was analyzed under the action of cinnamic acid (CIN), benzoic acid (BEN) and their derivatives caffeic (CAF), p-coumaric (p-CA), ferulic (FA), p-hydroxybenzoic (p-HB), protocatechuic (PRO), gallic (GAL), vanillic (VA) and salicylic (SA) acids. After 120 hr, CIN, CAF, p-CA, BEN, p-HB and PRO reduced seedling fresh weight (FW), seedling length (SL) and root length (RL) but did not affect germination percentage (G). FA, GAL, VA and SA reduced all variables, and the most effective were FA and SA. Results of the effects of these two allelochemicals on peroxidase (POD) activity showed that FA increased root POD but did not alter cotyledon POD while SA increased both cotyledon and root POD. The physiological effects of allelochemicals on seed germination, root growth and POD activity are discussed.
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Claims 7
Claim · model-written summary
Cinnamic, caffeic and p-coumaric acids reduced seedling fresh weight, seedling length and root length of canola.
- Taxon
- Canola
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Brassica napus var. napust0 - Treatment
- CIN, CAF, p-CAe1
- Outcome
- seedling fresh weight (FW), seedling length (SL) and root length (RL)e1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Canola (Brassica napus L.)”
e1“CIN, CAF, p-CA, BEN, p-HB and PRO reduced seedling fresh weight (FW), seedling length (SL) and root length (RL) but did not affect germination percentage (G)”
Claim · model-written summary
Benzoic, p-hydroxybenzoic and protocatechuic acids reduced seedling fresh weight, seedling length and root length of canola.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- BEN, p-HB and PROe1
- Outcome
- seedling fresh weight (FW), seedling length (SL) and root length (RL)e1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e1“CIN, CAF, p-CA, BEN, p-HB and PRO reduced seedling fresh weight (FW), seedling length (SL) and root length (RL) but did not affect germination percentage (G)”
Claim · model-written summary
Cinnamic, caffeic, p-coumaric, benzoic, p-hydroxybenzoic and protocatechuic acids did not affect canola germination percentage.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- CIN, CAF, p-CA, BEN, p-HB and PROe1
- Outcome
- germination percentage (G)e1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e1“CIN, CAF, p-CA, BEN, p-HB and PRO reduced seedling fresh weight (FW), seedling length (SL) and root length (RL) but did not affect germination percentage (G)”
Claim · model-written summary
Ferulic, gallic, vanillic and salicylic acids reduced all measured seedling variables of canola; ferulic and salicylic acids were the most effective.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- FA, GAL, VA and SAe2
- Outcome
- all variablese2
- Direction
- reducede2
- Qualifier
- the most effective were FA and SAe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e2“FA, GAL, VA and SA reduced all variables, and the most effective were FA and SA”
Claim · model-written summary
Ferulic acid increased canola root peroxidase activity.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- FAe3
- Outcome
- root PODe3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e3“Results of the effects of these two allelochemicals on peroxidase (POD) activity showed that FA increased root POD but did not alter cotyledon POD while SA increased both cotyledon and root POD”
Claim · model-written summary
Ferulic acid did not alter canola cotyledon peroxidase activity.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- FAe3
- Outcome
- cotyledon PODe3
- Direction
- did not altere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e3“Results of the effects of these two allelochemicals on peroxidase (POD) activity showed that FA increased root POD but did not alter cotyledon POD while SA increased both cotyledon and root POD”
Claim · model-written summary
Salicylic acid increased peroxidase activity in both cotyledons and roots of canola.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- SAe3
- Outcome
- both cotyledon and root PODe3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e3“Results of the effects of these two allelochemicals on peroxidase (POD) activity showed that FA increased root POD but did not alter cotyledon POD while SA increased both cotyledon and root POD”
The same questions in other papers
cinnamic acid · growth · Brassica napus (oilseed rape)Results differ
1 in the opposite direction
- positive
benzoic acid · growth · Brassica napus (oilseed rape)Results agree
1 paper in the same direction as this paper
- negative
phosphorus · growth · Brassica napus (oilseed rape)Positive and negative results
2 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 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.