Abstract
Hairy vetch ( Vicia villosa Roth) is a fast‐growing, winter‐hardy annual legume that is well suited for summer annual grain rotations because it fixes N 2 , reduces erosion, and suppresses weeds. Utilization of hairy vetch as a cover crop has been limited due to producer concerns regarding its potential to become a weed in subsequent crops. Hairy vetch weediness is attributed to its hard seed, a physical dormancy trait common to Vicia species. A 2‐yr field experiment was conducted in Pennsylvania and Maryland to characterize the effects of mechanical scarification and burial depth on seedbank dynamics using two cultivars. Field and laboratory measurements were conducted to determine seedbank fate: seedling emergence, seedbank persistence, and seedbank loss. Hairy vetch emergence and persistence in the soil seedbank varied considerably across cultivars, years, and study locations. Scarification completely eliminated seedbank persistence 6 mo after burial but probably reduced viability and stand establishment in some cases. Among unscarified seed treatments, seedbank persistence ranged from <1 to 7% 6 mo after burial. Burial of seed at 15 cm resulted in decreased seedling emergence and increased seedbank loss in comparison to the 3‐cm burial depth. Among treatments, seedling emergence ranged from 36 to 84% at the 3‐cm depth and 7 to 46% at the 15‐cm depth. These results indicate that mechanical scarification is a potential strategy for managing hairy vetch seedbank persistence and warrants further investigation. Tillage may also be effective for decreasing hairy vetch seedbanks when coupled with other management tactics.
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Claims 10
Claim · model-written summary
Emergence and persistence varied across cultivars, years and locations.
- Taxon
- Hairy vetch
Vicia villosae0 - Outcome
- emergence and persistence in the soil seedbanke0
- Direction
- varied considerablye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hairy vetch emergence and persistence in the soil seedbank varied considerably across cultivars, years, and study locations”
Claim · model-written summary
Scarification eliminated persistence six months after burial.
- Taxon
- Hairy VetchVicia villosat0
- Treatment
- Scarificatione0
- Outcome
- seedbank persistencee0
- Direction
- completely eliminatede0
- Qualifier
- 6 mo after buriale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Scarification completely eliminated seedbank persistence 6 mo after burial”
t0“Hairy Vetch”
Claim · model-written summary
Scarification probably reduced viability and establishment in some cases.
- Taxon
- Hairy VetchVicia villosat0
- Treatment
- Scarificatione0
- Outcome
- viability and stand establishmente0
- Direction
- reducede0
- Qualifier
- in some casese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Scarification completely eliminated seedbank persistence 6 mo after burial but probably reduced viability and stand establishment in some cases”
t0“Hairy Vetch”
Claim · model-written summary
Unscarified seed persistence ranged from less than 1 to 7% after six months.
- Taxon
- Hairy VetchVicia villosat0
- Outcome
- seedbank persistencee0
- Value
- <1 to 7%e0
- Qualifier
- 6 mo after buriale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among unscarified seed treatments, seedbank persistence ranged from <1 to 7% 6 mo after burial”
t0“Hairy Vetch”
Claim · model-written summary
Burial at 15 cm decreased seedling emergence relative to 3 cm.
- Taxon
- Hairy VetchVicia villosat0
- Treatment
- Burial of seed at 15 cme0
- Outcome
- seedling emergencee0
- Direction
- decreasede0
- Comparator
- 3‐cm burial depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Burial of seed at 15 cm resulted in decreased seedling emergence and increased seedbank loss in comparison to the 3‐cm burial depth”
t0“Hairy Vetch”
Claim · model-written summary
Burial at 15 cm increased seedbank loss relative to 3 cm.
- Taxon
- Hairy VetchVicia villosat0
- Treatment
- Burial of seed at 15 cme0
- Outcome
- seedbank losse0
- Direction
- increasede0
- Comparator
- 3‐cm burial depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Burial of seed at 15 cm resulted in decreased seedling emergence and increased seedbank loss in comparison to the 3‐cm burial depth”
t0“Hairy Vetch”
Claim · model-written summary
Emergence ranged from 36 to 84% at 3 cm.
- Taxon
- Hairy VetchVicia villosat0
- Outcome
- seedling emergencee0
- Value
- 36 to 84%e0
- Qualifier
- 3‐cm depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling emergence ranged from 36 to 84% at the 3‐cm depth”
t0“Hairy Vetch”
Claim · model-written summary
Emergence ranged from 7 to 46% at 15 cm.
- Taxon
- Hairy VetchVicia villosat0
- Outcome
- seedling emergencee0
- Value
- 7 to 46%e0
- Qualifier
- 15‐cm depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling emergence ranged from 36 to 84% at the 3‐cm depth and 7 to 46% at the 15‐cm depth”
t0“Hairy Vetch”
Claim · model-written summary
The authors suggest mechanical scarification to manage seedbank persistence.
- Taxon
- hairy vetchVicia villosae0
- Outcome
- mechanical scarification is a potential strategy for managing hairy vetch seedbank persistencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanical scarification is a potential strategy for managing hairy vetch seedbank persistence”
Claim · model-written summary
The authors suggest tillage with other tactics may reduce seedbanks.
- Taxon
- hairy vetchVicia villosae0
- Outcome
- Tillage may also be effective for decreasing hairy vetch seedbanks when coupled with other management tacticse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage may also be effective for decreasing hairy vetch seedbanks when coupled with other management tactics”
The same questions in other papers
seed treatment · growth · Vicia villosa (hairy vetch)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 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.