Abstract
Physical sanitation methods are used by the seed industry to prevent transmission of seed-borne diseases, but sensitivity varies between seed lots. The effect of seed maturity on the sensitivity to hot water, aerated steam and electron treatments was studied. Two Brassica oleracea L. and two Daucus carota L. seed lots from commercial production were selected for containing relatively large amounts of less mature seeds. Each seed lot was sorted into three maturity fractions based on the levels of chlorophyll fluorescence of individual seeds. Less mature B. oleracea and D. carota seeds were more susceptible to hot water treatments and less mature B. oleracea seeds to the aerated steam treatment. Seed maturity did not influence the sensitivity to the applied electron seed treatments. Seed lots were not selected for infections with seed-borne pathogens, however the less mature seeds were observed to be more frequently infected. It would be advisable to harvest seeds as mature as possible and to remove less mature seeds during seed processing. Sorting seeds by their level of chlorophyll fluorescence provides a useful method of sorting B. oleracea and D. carota seed lots. This would result in more efficient physical sanitation of seed lots.
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Claims 7
Claim · model-written summary
Less mature B. oleracea seeds were more susceptible to hot water treatments.
- Taxon
- B. oleracea
Brassica oleraceae1 - Treatment
- hot water treatmentse1
- Outcome
- susceptible to hot water treatmentse1
- Direction
- more susceptiblee1
- Qualifier
- Less maturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Less mature B. oleracea and D. carota seeds were more susceptible to hot water treatments and less mature B. oleracea seeds to the aerated steam treatment”
Claim · model-written summary
Less mature D. carota seeds were more susceptible to hot water treatments.
- Taxon
- D. carota
Daucus carotae1 - Treatment
- hot water treatmentse1
- Outcome
- susceptible to hot water treatmentse1
- Direction
- more susceptiblee1
- Qualifier
- Less maturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Less mature B. oleracea and D. carota seeds were more susceptible to hot water treatments and less mature B. oleracea seeds to the aerated steam treatment”
Claim · model-written summary
Less mature B. oleracea seeds were more susceptible to the aerated steam treatment.
- Taxon
- B. oleraceaBrassica oleraceae1
- Treatment
- aerated steam treatmente1
- Outcome
- susceptiblee1
- Direction
- more susceptiblee1
- Qualifier
- less maturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Less mature B. oleracea and D. carota seeds were more susceptible to hot water treatments and less mature B. oleracea seeds to the aerated steam treatment”
Claim · model-written summary
Seed maturity did not influence sensitivity to the applied electron seed treatments.
- Taxon
- Brassica oleracea L. and two Daucus carota L.Brassica oleraceaDaucus carotae0
- Treatment
- electron seed treatmentse1
- Outcome
- sensitivitye1
- Direction
- did not influencee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica oleracea L. and two Daucus carota L. seed lots”
e1“Seed maturity did not influence the sensitivity to the applied electron seed treatments”
Claim · model-written summary
Less mature seeds were observed to be more frequently infected by seed-borne pathogens.
- Taxon
- Brassica oleracea L. and two Daucus carota L.Brassica oleraceaDaucus carotae0
- Interactor
- seed-borne pathogense1pathogen
- Outcome
- more frequently infectede1
- Direction
- more frequentlye1
- Qualifier
- less mature seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica oleracea L. and two Daucus carota L. seed lots”
e1“Seed lots were not selected for infections with seed-borne pathogens, however the less mature seeds were observed to be more frequently infected”
Claim · model-written summary
The authors advise harvesting seeds as mature as possible and removing less mature seeds during seed processing.
Verbatim
e1“It would be advisable to harvest seeds as mature as possible and to remove less mature seeds during seed processing”
Claim · model-written summary
Sorting seeds by chlorophyll fluorescence level is a useful method of sorting B. oleracea and D. carota seed lots.
- Taxon
- B. oleracea and D. carotaBrassica oleraceaDaucus carotae1
- Outcome
- useful method of sortinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Sorting seeds by their level of chlorophyll fluorescence provides a useful method of sorting B. oleracea and D. carota seed lots”