Abstract
A 2 h soaking treatment in distilled water, or in aqueous solutions of cysteine, potassium iodide, or sodium thiosulphate, had no significant effect (P > 0.25) on the subsequent longevity of lettuce seeds (Lactuca sativa L.) in two different storage environments. Neither did these treatments influence relations between loss in germination and the frequency of chromosomal aberrations observed during first mitoses after storage. In contrast partial hydration of lettuce seeds after storage by exposure to moist air (humidification) or to an osmoticum (priming) reversed some of the damage which resulted from ageing. Most of the benefits occurred during the first 3 d of humidification during which seed moisture content rose to 34 per cent, or during the first 7 d of priming when seed moisture content increased to 44 per cent. Both post-storage hydration treatments reduced the frequency of chromosomal aberrations, increased the rate of root growth, and decreased the frequency of morphologically abnormal seedlings. Either treatment could be of practical use, but it is suggested that humidification is more convenient. Consideration should be given to adopting a humidification treatment as standard practice following long-term seed storage for genetic conservation.
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Claims 11
Claim · model-written summary
Prestorage soaking did not significantly affect subsequent seed longevity in two storage environments.
- Taxon
- lettuce seeds
Lactuca sativae0 - Treatment
- A 2 h soaking treatment in distilled water, or in aqueous solutions of cysteine, potassium iodide, or sodium thiosulphatee0
- Outcome
- subsequent longevitye0
- Direction
- no significant effecte0
- Setting
- two different storage environmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A 2 h soaking treatment in distilled water, or in aqueous solutions of cysteine, potassium iodide, or sodium thiosulphate, had no significant effect (P > 0.25) on the subsequent longevity of lettuce seeds (Lactuca sativa L.) in two different storage environments.”
Claim · model-written summary
Prestorage soaking did not alter the relation between germination loss and chromosomal aberration frequency after storage.
- Taxon
- LettuceLactuca sativat0
- Organ / stage
- first mitosese0
- Treatment
- these treatmentse0
- Outcome
- relations between loss in germination and the frequency of chromosomal aberrationse0
- Direction
- Neither did these treatments influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither did these treatments influence relations between loss in germination and the frequency of chromosomal aberrations observed during first mitoses after storage.”
t0“Lettuce Seeds”
Claim · model-written summary
Poststorage humidification reversed some ageing damage in lettuce seeds.
- Taxon
- lettuce seedsLactuca sativae0
- Treatment
- exposure to moist air (humidification)e0
- Outcome
- damage which resulted from ageinge0
- Direction
- reversede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partial hydration of lettuce seeds after storage by exposure to moist air (humidification) or to an osmoticum (priming) reversed some of the damage which resulted from ageing.”
Claim · model-written summary
Poststorage priming reversed some ageing damage in lettuce seeds.
- Taxon
- lettuce seedsLactuca sativae0
- Treatment
- an osmoticum (priming)e0
- Outcome
- damage which resulted from ageinge0
- Direction
- reversede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partial hydration of lettuce seeds after storage by exposure to moist air (humidification) or to an osmoticum (priming) reversed some of the damage which resulted from ageing.”
Claim · model-written summary
Most humidification benefit occurred during the first 3 days as seed moisture rose to 34 per cent.
- Taxon
- LettuceLactuca sativat0
- Treatment
- humidificatione0
- Outcome
- benefitse0
- Value
- 34 per cente0
- Qualifier
- first 3 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the benefits occurred during the first 3 d of humidification during which seed moisture content rose to 34 per cent”
t0“Lettuce Seeds”
Claim · model-written summary
Most priming benefit occurred during the first 7 days as seed moisture rose to 44 per cent.
- Taxon
- LettuceLactuca sativat0
- Treatment
- priminge0
- Outcome
- seed moisture contente0
- Direction
- increasede0
- Value
- 44 per cente0
- Qualifier
- first 7 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“during the first 7 d of priming when seed moisture content increased to 44 per cent”
t0“Lettuce Seeds”
Claim · model-written summary
Both poststorage hydration treatments reduced chromosomal aberration frequency.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Both post-storage hydration treatmentse0
- Outcome
- frequency of chromosomal aberrationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both post-storage hydration treatments reduced the frequency of chromosomal aberrations”
t0“Lettuce Seeds”
Claim · model-written summary
Both poststorage hydration treatments increased root growth rate.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Both post-storage hydration treatmentse0
- Outcome
- rate of root growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both post-storage hydration treatments reduced the frequency of chromosomal aberrations, increased the rate of root growth”
t0“Lettuce Seeds”
Claim · model-written summary
Both poststorage hydration treatments decreased morphologically abnormal seedlings.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Both post-storage hydration treatmentse0
- Outcome
- frequency of morphologically abnormal seedlingse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both post-storage hydration treatments reduced the frequency of chromosomal aberrations, increased the rate of root growth, and decreased the frequency of morphologically abnormal seedlings.”
t0“Lettuce Seeds”
Claim · model-written summary
The authors suggest humidification is more convenient than priming.
- Taxon
- LettuceLactuca sativat0
- Outcome
- humidification is more conveniente0
- Comparator
- Either treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Either treatment could be of practical use, but it is suggested that humidification is more convenient.”
t0“Lettuce Seeds”
Claim · model-written summary
The authors recommend considering humidification after long-term seed storage for genetic conservation.
- Taxon
- LettuceLactuca sativat0
- Outcome
- adopting a humidification treatment as standard practicee0
- Qualifier
- following long-term seed storage for genetic conservatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Consideration should be given to adopting a humidification treatment as standard practice following long-term seed storage for genetic conservation.”
t0“Lettuce Seeds”
The same questions in other papers
seed treatment · pest · Lactuca sativa (garden lettuce)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
application · pest · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 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.