Abstract
Polymer film coating has been applied to commercial sugar beet ( Beta vulgaris L.) seeds in the USA as an effective delivery system for agrochemicals. This research was conducted to study the impact of polymer film coating on sugar beet seed germination. Twelve seed lots, representing nine monogerm cultivars, had standard germination of 89 to 95%. After film coating (20 g of polyvinyl polymer per kilogram seed), the germination percentage varied from 68 to 94%. Six seed lots, including three lots of cultivar HH55, exhibited significant germination reductions after coating. Besides significant cultivar differences, seed lots within the same cultivar (HH55) also showed different responses to coating. After removal of the pericarp, the true seed of sensitive cultivar HH55 did not show germination reductions after coating. This indicates that the interaction between film coating and pericarp factors accounted for the germination reduction in film‐coated seeds. Sensitivity to film coating was alleviated by presoaking or peroxide treatments. A high negative correlation was found between absorbance at 265 am (A 265 nm ) of seed steep solution and coated seed germination percentage ( r = −0.96***). The A 265 nm of steeping solution could reduced to near zero by filtering the solution through the phenolic absorbent polyvinylpyrrolidone. Polymer film coating induced germination reductions in sensitive cnitivars were likely related to restricted oxygen supply to the enclosed embryo and to the retention of water soluble germination inhibitors, which would normally be leached into the germination medium and/or oxidized and deactivated.
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Claims 9
Claim · model-written summary
Film coating significantly reduced germination in six sugar beet seed lots, including three lots of cultivar HH55.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Material
- cultivar HH55e1
- Treatment
- coatinge1
- Outcome
- germinatione1
- Direction
- reductionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Six seed lots, including three lots of cultivar HH55, exhibited significant germination reductions after coating”
t0“Sugar Beet Seed”
Claim · model-written summary
After film coating, sugar beet germination percentage varied from 68 to 94% against a standard germination of 89 to 95%.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- film coating (20 g of polyvinyl polymer per kilogram seed)e1
- Outcome
- germination percentagee1
- Value
- 68 to 94%e1
- Comparator
- standard germinatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Twelve seed lots, representing nine monogerm cultivars, had standard germination of 89 to 95%. After film coating (20 g of polyvinyl polymer per kilogram seed), the germination percentage varied from 68 to 94%”
t0“Sugar Beet Seed”
Claim · model-written summary
Seed lots within sugar beet cultivar HH55 showed different responses to film coating.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Material
- HH55e1
- Outcome
- responses to coatinge1
- Qualifier
- seed lots within the same cultivare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Besides significant cultivar differences, seed lots within the same cultivar (HH55) also showed different responses to coating”
t0“Sugar Beet Seed”
Claim · model-written summary
Removal of the pericarp prevented germination reduction after coating in the true seed of sensitive sugar beet cultivar HH55.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Material
- sensitive cultivar HH55e1
- Treatment
- removal of the pericarpe1
- Outcome
- germination reductionse1
- Direction
- did not showe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“After removal of the pericarp, the true seed of sensitive cultivar HH55 did not show germination reductions after coating”
t0“Sugar Beet Seed”
Claim · model-written summary
The germination reduction in film-coated sugar beet seed is attributed to an interaction between film coating and pericarp factors.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Outcome
- germination reductione1
- Qualifier
- interaction between film coating and pericarp factorse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This indicates that the interaction between film coating and pericarp factors accounted for the germination reduction in film‐coated seeds”
t0“Sugar Beet Seed”
Claim · model-written summary
Presoaking or peroxide treatments alleviated sugar beet sensitivity to film coating.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- presoaking or peroxide treatmentse1
- Outcome
- Sensitivity to film coatinge1
- Direction
- alleviatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Sensitivity to film coating was alleviated by presoaking or peroxide treatments”
t0“Sugar Beet Seed”
Claim · model-written summary
Absorbance at 265 nm of seed steep solution was negatively correlated with coated sugar beet seed germination percentage (r = -0.96).
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- absorbance at 265 am (A 265 nm ) of seed steep solutione1
- Outcome
- coated seed germination percentagee1
- Direction
- negative correlatione1
- Value
- r = −0.96***e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“A high negative correlation was found between absorbance at 265 am (A 265 nm ) of seed steep solution and coated seed germination percentage ( r = −0.96***)”
t0“Sugar Beet Seed”
Claim · model-written summary
Filtering the steep solution through polyvinylpyrrolidone reduced its A265 nm to near zero.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- filtering the solution through the phenolic absorbent polyvinylpyrrolidonee1
- Outcome
- A 265 nm of steeping solutione1
- Direction
- reducede1
- Value
- near zeroe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The A 265 nm of steeping solution could reduced to near zero by filtering the solution through the phenolic absorbent polyvinylpyrrolidone”
t0“Sugar Beet Seed”
Claim · model-written summary
Germination reductions of sensitive sugar beet cultivars under polymer film coating are likely due to restricted oxygen supply and retention of water-soluble germination inhibitors.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Outcome
- germination reductions in sensitive cnitivarse1
- Qualifier
- restricted oxygen supply to the enclosed embryo and to the retention of water soluble germination inhibitorse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Polymer film coating induced germination reductions in sensitive cnitivars were likely related to restricted oxygen supply to the enclosed embryo and to the retention of water soluble germination inhibitors”
t0“Sugar Beet Seed”
The same questions in other papers
storage · growth · Beta vulgaris (beet)Positive and negative results
3 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 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.