Abstract
Hairy vetch ( Vicia villosa Roth) is a promising winter cover crop for northern climates, but germination can be limited by low soil moisture conditions. Farmers may be reluctant to use hairy vetch, concerned that hard seed will emerge as weeds in succeeding crops. This work examines germination, dormancy, and viability of hairy vetch seeds from nine commercial seed sources, and evaluates the effects of mechanical scarification and ambient temperature hydropriming on the degree of hard‐seededness, germination, seed viability and seedling vigor in a range of simulated soil moisture conditions. Hydropriming increased germination by 5% across seed sources and water potentials, but reduced seedling growth by 16%. Mechanical scarification eliminated all hard‐seededness, but increased physiologically dormant seed by ∼5% and nonviable seed by ∼2% and reduced seedling growth by 39%. This work indicates that pretreatments may increase germination and reduce hard‐seededness, but reduce seed viability and seedling vigor in some seed sources.
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Claims 7
Claim · model-written summary
Hydropriming increased germination by 5%.
- Taxon
- Hairy vetch
Vicia villosat0 - Treatment
- Hydropriminge0
- Outcome
- germinatione0
- Direction
- increasede0
- Value
- 5%e0
- Qualifier
- across seed sources and water potentialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hydropriming increased germination by 5% across seed sources and water potentials”
t0“Hairy vetch”
Claim · model-written summary
Hydropriming reduced seedling growth by 16%.
- Taxon
- Hairy vetchVicia villosat0
- Treatment
- Hydropriminge0
- Outcome
- seedling growthe0
- Direction
- reducede0
- Value
- 16%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hydropriming increased germination by 5% across seed sources and water potentials, but reduced seedling growth by 16%”
t0“Hairy vetch”
Claim · model-written summary
Mechanical scarification eliminated hard seededness.
- Taxon
- Hairy vetchVicia villosat0
- Treatment
- Mechanical scarificatione0
- Outcome
- hard‐seedednesse0
- Direction
- eliminatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mechanical scarification eliminated all hard‐seededness”
t0“Hairy vetch”
Claim · model-written summary
Mechanical scarification increased physiological dormancy by about 5%.
- Taxon
- Hairy vetchVicia villosat0
- Treatment
- Mechanical scarificatione0
- Outcome
- physiologically dormant seede0
- Direction
- increasede0
- Value
- ∼5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mechanical scarification eliminated all hard‐seededness, but increased physiologically dormant seed by ∼5%”
t0“Hairy vetch”
Claim · model-written summary
Mechanical scarification increased nonviable seed by about 2%.
- Taxon
- Hairy vetchVicia villosat0
- Treatment
- Mechanical scarificatione1
- Outcome
- nonviable seede0
- Direction
- increasede0
- Value
- ∼2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased physiologically dormant seed by ∼5% and nonviable seed by ∼2%”
t0“Hairy vetch”
e1“Mechanical scarification eliminated all hard‐seededness”
Claim · model-written summary
Mechanical scarification reduced seedling growth by 39%.
- Taxon
- Hairy vetchVicia villosat0
- Treatment
- Mechanical scarificatione0
- Outcome
- seedling growthe0
- Direction
- reducede0
- Value
- 39%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mechanical scarification eliminated all hard‐seededness, but increased physiologically dormant seed by ∼5% and nonviable seed by ∼2% and reduced seedling growth by 39%”
t0“Hairy vetch”
Claim · model-written summary
Pretreatments may improve germination and reduce hard seededness at a cost to viability and vigor in some sources.
- Taxon
- Hairy vetchVicia villosat0
- Outcome
- germination and reduce hard‐seedednesse0
- Qualifier
- in some seed sourcese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatments may increase germination and reduce hard‐seededness, but reduce seed viability and seedling vigor in some seed sources”
t0“Hairy vetch”
The same questions in other papers
seed treatment · growth · Vicia villosa (hairy vetch)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- 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.