Abstract
Enhancing soil‐protecting living cover over the winter is an important challenge in temperate row crop production. This note reports on novel findings for cover crop seed priming, a process of controlled hydration and drying. The effects of seed priming over durations of 0, 2, 4, 8, 12, 24, and 36 h were evaluated for four species that varied in seed size and germination characteristics: cereal rye ( Secale cereale L.), perennial ryegrass ( Lolium perenne L.), hairy vetch ( Vicia villosa Roth), and oriental mustard ( Brassica juncea L.). A logistic function modeled response was used to quantify onset of germination, time to 50% germination (t 50 ), maximum germination rate, final germination percentage ( K ), seedling emergence, and establishment in laboratory germination paper and soil core assays. Rye seed germinated rapidly regardless of priming treatment. Under the optimum environmental conditions of a laboratory germination assay, the smallest seeded cover crop, perennial ryegrass, was the only species to show a final germination response that was higher in primed (86%) than untreated seed (78%). However, seed germination rates of three species were influenced by priming: 50% germination was reached 8, 6, and 9 h earlier in hairy vetch, mustard, and perennial ryegrass, respectively. Compacted soil assays showed that priming (24 h) improved seedling emergence by 36% and 57% for hairy vetch and perennial ryegrass, respectively, compared with untreated seed. These results were consistent across experiment runs. Seed priming shows promise as a new technology for improving cover crop establishment in compacted soil.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Perennial ryegrass was the only species with a higher final germination response in primed seed (86%) than untreated seed (78%) under laboratory conditions.
- Taxon
- perennial ryegrass
Lolium perennee0 - Treatment
- primede0
- Outcome
- final germination responsee0
- Direction
- highere0
- Value
- 86%e0
- Qualifier
- 78%e0
- Comparator
- untreated seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the smallest seeded cover crop, perennial ryegrass, was the only species to show a final germination response that was higher in primed (86%) than untreated seed (78%)”
Claim · model-written summary
Priming brought hairy vetch to 50% germination 8 h earlier.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed germination rates of three species were influenced by priming: 50% germination was reached 8, 6, and 9 h earlier in hairy vetch, mustard, and perennial ryegrass, respectively”
Claim · model-written summary
Priming brought mustard to 50% germination 6 h earlier.
Not reportedComparator
Verbatim
e0“seed germination rates of three species were influenced by priming: 50% germination was reached 8, 6, and 9 h earlier in hairy vetch, mustard, and perennial ryegrass, respectively”
Claim · model-written summary
Priming brought perennial ryegrass to 50% germination 9 h earlier.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- priminge0
- Outcome
- 50% germinatione0
- Direction
- earliere0
- Value
- 9 he0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed germination rates of three species were influenced by priming: 50% germination was reached 8, 6, and 9 h earlier in hairy vetch, mustard, and perennial ryegrass, respectively”
Claim · model-written summary
In compacted soil, 24 h priming improved seedling emergence of hairy vetch by 36% compared with untreated seed.
- Taxon
- hairy vetch
Vicia villosae0 - Treatment
- priming (24 h)e0
- Outcome
- seedling emergencee0
- Direction
- improvede0
- Value
- 36%e0
- Comparator
- untreated seede0
- Setting
- Compacted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compacted soil assays showed that priming (24 h) improved seedling emergence by 36% and 57% for hairy vetch and perennial ryegrass, respectively, compared with untreated seed”
Claim · model-written summary
In compacted soil, 24 h priming improved seedling emergence of perennial ryegrass by 57% compared with untreated seed.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- priming (24 h)e0
- Outcome
- seedling emergencee0
- Direction
- improvede0
- Value
- 57%e0
- Comparator
- untreated seede0
- Setting
- Compacted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compacted soil assays showed that priming (24 h) improved seedling emergence by 36% and 57% for hairy vetch and perennial ryegrass, respectively, compared with untreated seed”
Claim · model-written summary
Rye seed germinated rapidly regardless of priming treatment.
- Taxon
- Rye
Secale cerealee0 - Treatment
- priming treatmente0
- Outcome
- germinated rapidlye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rye seed germinated rapidly regardless of priming treatment”
Claim · model-written summary
Seed priming shows promise as a new technology for improving cover crop establishment in compacted soil.
Verbatim
e0“Seed priming shows promise as a new technology for improving cover crop establishment in compacted soil”
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
- positive
- negative
- positive
1 paper more in this group
See all 5 papers →seed treatment · growth · Lolium perenne (perennial ryegrass)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
3 papers more in this group
See all 7 papers →seed treatment · growth · Secale cereale (rye)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.