Paper · 1973 · Agronomy Journal

Blendability of Phenotypically Similar and Dissimilar Winter Barley Cultivars1

Monope Palvakul; Verne C. Finkner; D. L. Davis

6
claims
12
verbatim quotes
8
citations
2
research areas
—
Not open access

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

Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

No blend showed significant grain-yield overcompensation or undercompensation.

Taxon
Winter BarleyHordeum vulgaret0
Outcome
grain yielde0
Direction
not founde0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Significant overcompensation or undercompensation for grain yield was not found in any combination of like or unlike phenotypes”

✓ located verbatim in the source · abstract, characters 556–683 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑
Observationobservedoriginal resultpositivemeasured

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Nineteen of the 28 blends were higher yielding than the midcomponent.”

✓ located verbatim in the source · abstract, characters 748–817 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑
Observationobservedoriginal resultpositivemeasured

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Eight of the blends had higher yields than the higher‐yielding component grown in monoculture.”

✓ located verbatim in the source · abstract, characters 818–912 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑
Observationobservedoriginal resultpositivemeasured

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The 28 blends averaged 2% higher yields than the midcomponent.”

✓ located verbatim in the source · abstract, characters 913–975 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Grouping into small, intermediate, or large phenotypic differences did not result in groups exhibiting significant overcompensation or undercompensation.”

✓ located verbatim in the source · abstract, characters 976–1129 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑
Method / resourceobservedoriginal resultnegativemeasured

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.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phenotypic selection was not effective for identification of lines whose blends would exhibit overcompensation.”

✓ located verbatim in the source · abstract, characters 1130–1241 · show in text ↑
t0

“Winter Barley”

✓ located verbatim in the source · title, characters 54–67 · show in text ↑