Abstract
Abstract The objectives of the reported research were to compare the performance of winter barley ( Hordeum vulgare L. emend. Lam.) and to determine if overcompensation would be associated with blends of similar or dissimilar phenotypes. The performance of 28 bi‐line blends, each in a 1:1 genotypic ratio, was compared with the performance of the eight component lines grown in monoculture. The eight component lines of winter barley were chosen to provide a gradient in the phenotypic expressions of heading date, plant height, grain yield, and awnness. Significant overcompensation or undercompensation for grain yield was not found in any combination of like or unlike phenotypes; however, several blends did show a trend for overcompensation. Nineteen of the 28 blends were higher yielding than the midcomponent. Eight of the blends had higher yields than the higher‐yielding component grown in monoculture. The 28 blends averaged 2% higher yields than the midcomponent. Grouping into small, intermediate, or large phenotypic differences did not result in groups exhibiting significant overcompensation or undercompensation. Phenotypic selection was not effective for identification of lines whose blends would exhibit overcompensation.
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Claims 6
Claim · model-written summary
No blend showed significant grain-yield overcompensation or undercompensation.
- Taxon
- Winter Barley
.jpg?width=60)
Hordeum vulgaret0 - Outcome
- grain yielde0
- Direction
- not founde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Significant overcompensation or undercompensation for grain yield was not found in any combination of like or unlike phenotypes”
t0“Winter Barley”
Claim · model-written summary
Nineteen of 28 blends yielded more than the midcomponent.
- Taxon
- Winter BarleyHordeum vulgaret0
- Outcome
- yieldinge0
- Direction
- highere0
- Value
- Nineteen of the 28 blendse0
- Comparator
- midcomponente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nineteen of the 28 blends were higher yielding than the midcomponent.”
t0“Winter Barley”
Claim · model-written summary
Eight blends yielded more than the higher yielding monoculture component.
- Taxon
- Winter BarleyHordeum vulgaret0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- Eighte0
- Comparator
- higher‐yielding component grown in monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eight of the blends had higher yields than the higher‐yielding component grown in monoculture.”
t0“Winter Barley”
Claim · model-written summary
The 28 blends averaged 2% more yield than the midcomponent.
- Taxon
- Winter BarleyHordeum vulgaret0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- 2%e0
- Comparator
- midcomponente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 28 blends averaged 2% higher yields than the midcomponent.”
t0“Winter Barley”
Claim · model-written summary
Grouping by phenotypic difference did not yield groups with significant overcompensation or undercompensation.
- Taxon
- Winter BarleyHordeum vulgaret0
- Outcome
- significant overcompensation or undercompensatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grouping into small, intermediate, or large phenotypic differences did not result in groups exhibiting significant overcompensation or undercompensation.”
t0“Winter Barley”
Claim · model-written summary
Phenotypic selection failed to identify lines whose blends overcompensated.
- Taxon
- Winter BarleyHordeum vulgaret0
- Outcome
- identification of lines whose blends would exhibit overcompensatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenotypic selection was not effective for identification of lines whose blends would exhibit overcompensation.”
t0“Winter Barley”