Abstract
Abstract The field emergence ability of a total of 88 seed lots of spring barley ( Hordeum vulgare L.) harvested serially during development in 2 years was compared, as was the size of the resultant seedlings. For seedsproduced in each year, field emergence and the mean dry weight of emerged seedlings were significantly greater for seed lots harvested some timeafter physiological maturity (end of the seed-filling period) than for those harvested at or before this developmental stage. This is compatiblewith results for the potential longevity of these lots. It is concluded that barley seed quality continues to increase after physiological maturity, and that the developing seeds attain maximum quality (however this is assessed) close to when the seed crop can be combine harvested. Positive correlations were detected between seedling emergence and seed dry weight ( P <0.05) and between the mean dry weight of emerged seedlings and seed dry weight ( P <0.005) among seed lots harvested close to when maximum quality was attained in four seed production environments.
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Claims 5
Claim · model-written summary
Later-harvested barley seed lots had greater field emergence.
- Taxon
- spring barley
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Hordeum vulgaret0 - Organ / stage
- physiological maturitye0
- Outcome
- field emergencee0
- Direction
- greatere0
- Comparator
- those harvested at or before this developmental stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“field emergence and the mean dry weight of emerged seedlings were significantly greater for seed lots harvested some timeafter physiological maturity (end of the seed-filling period) than for those harvested at or before this developmental stage”
t0“spring barley”
Claim · model-written summary
Later-harvested barley seed lots produced heavier emerged seedlings.
- Taxon
- spring barleyHordeum vulgaret0
- Organ / stage
- physiological maturitye0
- Outcome
- mean dry weight of emerged seedlingse0
- Direction
- greatere0
- Comparator
- those harvested at or before this developmental stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field emergence and the mean dry weight of emerged seedlings were significantly greater for seed lots harvested some timeafter physiological maturity (end of the seed-filling period) than for those harvested at or before this developmental stage”
t0“spring barley”
Claim · model-written summary
Barley seed quality continued increasing after physiological maturity and peaked near combine harvest.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- physiological maturitye0
- Outcome
- seed qualitye0
- Direction
- continues to increasee0
- Qualifier
- close to when the seed crop can be combine harvestede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley seed quality continues to increase after physiological maturity, and that the developing seeds attain maximum quality (however this is assessed) close to when the seed crop can be combine harvested”
Claim · model-written summary
Seedling emergence correlated positively with seed dry weight.
- Taxon
- spring barleyHordeum vulgaret0
- Organ / stage
- seed dry weighte0
- Outcome
- seedling emergencee0
- Direction
- Positive correlationse0
- Value
- P <0.05e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Positive correlations were detected between seedling emergence and seed dry weight ( P <0.05)”
t0“spring barley”
Claim · model-written summary
Mean dry weight of emerged seedlings correlated positively with seed dry weight.
- Taxon
- spring barleyHordeum vulgaret0
- Organ / stage
- seed dry weighte0
- Outcome
- mean dry weight of emerged seedlingse0
- Value
- P <0.005e0
- Qualifier
- four seed production environmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“between the mean dry weight of emerged seedlings and seed dry weight ( P <0.005) among seed lots harvested close to when maximum quality was attained in four seed production environments”
t0“spring barley”