Abstract
In order to study the genetic changes which occur during seed storage, barley (Hordeum vulgare L. 'Himalaya') seeds were subjected to artificial aging using six combinations of temperature (21 °C, 32 °C, and 38 °C) and seed moisture content (12% and 18%). With increasing time in storage, germination of the seeds was delayed and reduced. Abnormal seedlings without roots also occurred with increased storage. Higher temperature and seed moisture content induced rapid loss of germinability. At the first mitotic division in the root tips, the frequency of aberrant anaphases and of roots with aberrations increased with increased storage time. The frequencies of aberrant anaphases and of roots with aberrations were also increased by higher temperature and seed moisture content. Frequencies of aberrant anaphases and of roots with aberrations were negatively correlated with germination percentage. This indicated that the frequency of chromosomal aberrations induced by seed aging might be estimated from the germination percentages.
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Claims 9
Claim · model-written summary
Longer storage delayed and reduced germination.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- increasing time in storagee0
- Outcome
- germination of the seedse0
- Direction
- delayed and reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“With increasing time in storage, germination of the seeds was delayed and reduced.”
t0“BARLEY”
Claim · model-written summary
Longer storage increased rootless abnormal seedlings.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- increased storagee0
- Outcome
- Abnormal seedlings without rootse0
- Direction
- occurrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abnormal seedlings without roots also occurred with increased storage.”
t0“BARLEY”
Claim · model-written summary
Higher temperature reduced germinability rapidly.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Higher temperaturee0
- Outcome
- germinabilitye0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher temperature and seed moisture content induced rapid loss of germinability.”
t0“BARLEY”
Claim · model-written summary
Higher seed moisture reduced germinability rapidly.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- seed moisture contente0
- Outcome
- germinabilitye0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher temperature and seed moisture content induced rapid loss of germinability.”
t0“BARLEY”
Claim · model-written summary
Longer storage increased aberrant anaphases and roots with aberrations.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- increased storage timee0
- Outcome
- frequency of aberrant anaphases and of roots with aberrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the first mitotic division in the root tips, the frequency of aberrant anaphases and of roots with aberrations increased with increased storage time.”
t0“BARLEY”
Claim · model-written summary
Higher temperature increased anaphase and root aberrations.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- higher temperaturee0
- Outcome
- frequencies of aberrant anaphases and of roots with aberrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The frequencies of aberrant anaphases and of roots with aberrations were also increased by higher temperature and seed moisture content.”
t0“BARLEY”
Claim · model-written summary
Higher seed moisture increased anaphase and root aberrations.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- seed moisture contente0
- Outcome
- frequencies of aberrant anaphases and of roots with aberrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The frequencies of aberrant anaphases and of roots with aberrations were also increased by higher temperature and seed moisture content.”
t0“BARLEY”
Claim · model-written summary
Chromosomal aberrations correlated negatively with germination percentage.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- Frequencies of aberrant anaphases and of roots with aberrationse0
- Direction
- negatively correlatede0
- Comparator
- germination percentagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Frequencies of aberrant anaphases and of roots with aberrations were negatively correlated with germination percentage.”
t0“BARLEY”
Claim · model-written summary
The authors suggest germination percentage may estimate seed aging chromosomal aberrations.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- frequency of chromosomal aberrations induced by seed aginge0
- Comparator
- germination percentagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This indicated that the frequency of chromosomal aberrations induced by seed aging might be estimated from the germination percentages.”
t0“BARLEY”
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See all 19 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.