Abstract
Sweet pepper seeds were osmotically conditioned in 0.4 M mannitol solution for 4 d (at 25 °C, in darkness) before or after storage at 35 °C for up to six months, and their germination and viability was compared with that of untreated seeds stored under the same conditions. Seeds that had been osmoconditioned prior to storage retained a high rate of germination and germinated to a high final percentage (from 80 to 50 per cent) at both 15 and 25 °C throughout the storage period. By contrast, both the rate and total level of germination of untreated pepper seeds declined rapidly at both germination temperatures, and by three months of storage the total level of seed viability was already less than 10 per cent. Seeds that were first stored at 35 °C, and then osmoconditioned just prior to germination, showed a decline in germinability which when tested at 25 °C was the same as for untreated seeds, while tested at 15 °C occurred at a slightly slower rate than for untreated seeds. It is evident that osmoconditioning prior to storage, in addition to the acceleration of germination, resulted in a dramatic delay of the ageing rate, thus increasing considerably the longevity of seeds. On the other hand, osmoconditioning after storage did not seem to have any significant effect on seed viability, though it enhanced the germination rate.
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Claims 7
Claim · model-written summary
Prestorage osmoconditioning maintained a high germination rate.
- Taxon
- Sweet pepper
Capsicum annuume1 - Treatment
- osmoconditioned prior to storagee0
- Outcome
- rate of germinatione0
- Direction
- retained a high ratee0
- Qualifier
- at both 15 and 25 °C throughout the storage periode0
- Comparator
- untreated seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds that had been osmoconditioned prior to storage retained a high rate of germination and germinated to a high final percentage (from 80 to 50 per cent) at both 15 and 25 °C throughout the storage period.”
e1“Sweet pepper seeds were osmotically conditioned in 0.4 M mannitol solution for 4 d (at 25 °C, in darkness) before or after storage at 35 °C for up to six months, and their germination and viability was compared with that of untreated seeds stored under the same conditions”
Claim · model-written summary
Prestorage conditioning maintained a high final germination percentage.
- Taxon
- Sweet pepperCapsicum annuume1
- Treatment
- osmoconditioned prior to storagee0
- Outcome
- final percentagee0
- Direction
- highe0
- Value
- from 80 to 50 per cente0
- Qualifier
- at both 15 and 25 °C throughout the storage periode0
- Comparator
- untreated seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds that had been osmoconditioned prior to storage retained a high rate of germination and germinated to a high final percentage (from 80 to 50 per cent) at both 15 and 25 °C throughout the storage period.”
e1“Sweet pepper seeds were osmotically conditioned in 0.4 M mannitol solution for 4 d (at 25 °C, in darkness) before or after storage at 35 °C for up to six months, and their germination and viability was compared with that of untreated seeds stored under the same conditions”
Claim · model-written summary
Untreated pepper seeds rapidly lost germination during storage.
Verbatim
e0“both the rate and total level of germination of untreated pepper seeds declined rapidly at both germination temperatures”
Claim · model-written summary
Untreated pepper seed viability fell below 10 percent by three months.
- Taxon
- Sweet pepperCapsicum annuume1
- Outcome
- seed viabilitye0
- Value
- less than 10 per cente0
- Qualifier
- by three months of storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by three months of storage the total level of seed viability was already less than 10 per cent”
e1“Sweet pepper seeds were osmotically conditioned in 0.4 M mannitol solution for 4 d (at 25 °C, in darkness) before or after storage at 35 °C for up to six months, and their germination and viability was compared with that of untreated seeds stored under the same conditions”
Claim · model-written summary
Poststorage conditioning gave the same germinability decline as untreated seeds at 25 °C.
- Taxon
- Sweet pepperCapsicum annuume1
- Treatment
- osmoconditioned just prior to germinatione0
- Outcome
- germinabilitye0
- Direction
- the samee0
- Qualifier
- at 25 °Ce0
- Comparator
- untreated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds that were first stored at 35 °C, and then osmoconditioned just prior to germination, showed a decline in germinability which when tested at 25 °C was the same as for untreated seeds”
e1“Sweet pepper seeds were osmotically conditioned”
Claim · model-written summary
Poststorage conditioning slightly slowed germinability decline at 15 °C.
- Taxon
- Sweet pepperCapsicum annuume1
- Treatment
- osmoconditioned just prior to germinatione0
- Outcome
- germinabilitye0
- Direction
- a slightly slower ratee0
- Qualifier
- at 15 °Ce0
- Comparator
- untreated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds that were first stored at 35 °C, and then osmoconditioned just prior to germination, showed a decline in germinability which when tested at 25 °C was the same as for untreated seeds, while tested at 15 °C occurred at a slightly slower rate than for untreated seeds”
e1“Sweet pepper seeds were osmotically conditioned”
Claim · model-written summary
Poststorage conditioning had no significant effect on seed viability.
- Taxon
- Sweet pepperCapsicum annuume1
- Treatment
- osmoconditioning after storagee0
- Outcome
- seed viabilitye0
- Direction
- did not seem to have any significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“osmoconditioning after storage did not seem to have any significant effect on seed viability”
e1“Sweet pepper seeds were osmotically conditioned”
The same questions in other papers
processing · growth · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 6 in the opposite direction
- negative
- no effect
- no effect
5 papers more in this group
See all 9 papers →storage · growth · Capsicum annuum (sweet pepper)Positive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- negative
5 papers more in this group
See all 9 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.