Abstract
Russian wheat aphid, Diuraphis noxia (Mordvilko) (RWA), can be devastating to barley ( Hordeum vulgare L.) in the western USA. RWA‐resistant barley germplasm lines have been developed that control RWA without the use of environmentally detrimental and economically expensive insecticides. This study was conducted to determine if seedling RWA resistance ratings, utilized to develop resistant germplasm lines from greenhouse screenings, accurately predict field performance measured as grain yield and to determine the effect of RWA on yield and yield components of RWA‐resistant barley germplasm lines and cultivars differing in seedling RWA resistant rating. Resistant lines and susceptible cultivars were planted at two field locations in Wyoming. Plots were artificially infested with RWA while controls were kept aphid free with pesticide application. Highly resistant lines maintained or increased yield components and grain yield (average grain yield increase 5%) under RWA feeding pressure. Susceptible cultivars had a large reduction in yield components and grain yield (average reduction 56%). The response of moderately resistant and moderately susceptible lines was intermediate and continuous between the resistant and susceptible lines with an average reduction of 20% in grain yield. Seedling resistance ratings accurately predict field performance, providing a more economical, timely, and efficient means of selecting RWA‐resistant germplasm lines for release.
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Claims 6
Claim · model-written summary
Highly resistant lines maintained or increased yield components under aphid feeding.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Material
- Highly resistant linese0
- Treatment
- RWA feeding pressuree0
- Interactor
- RWAe0pest
- Outcome
- yield componentse0
- Direction
- maintained or increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Highly resistant lines maintained or increased yield components and grain yield (average grain yield increase 5%) under RWA feeding pressure”
t0“Spring Barley”
Claim · model-written summary
Highly resistant lines averaged a 5% grain yield increase under aphid feeding.
- Taxon
- barleyHordeum vulgaret0
- Material
- Highly resistant linese0
- Treatment
- RWA feeding pressuree0
- Interactor
- RWAe0pest
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highly resistant lines maintained or increased yield components and grain yield (average grain yield increase 5%) under RWA feeding pressure”
t0“Spring Barley”
Claim · model-written summary
Susceptible cultivars had reduced yield components under aphid feeding.
- Taxon
- barleyHordeum vulgaret0
- Material
- Susceptible cultivarse0
- Treatment
- RWAe1
- Interactor
- RWAe1pest
- Outcome
- yield componentse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Susceptible cultivars had a large reduction in yield components and grain yield (average reduction 56%)”
t0“Spring Barley”
e1“Plots were artificially infested with RWA”
Claim · model-written summary
Susceptible cultivars averaged a 56% grain yield reduction.
- Taxon
- barleyHordeum vulgaret0
- Material
- Susceptible cultivarse0
- Treatment
- RWAe1
- Interactor
- RWAe1pest
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 56%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Susceptible cultivars had a large reduction in yield components and grain yield (average reduction 56%)”
t0“Spring Barley”
e1“Plots were artificially infested with RWA”
Claim · model-written summary
Moderately resistant and moderately susceptible lines had intermediate grain yield response, averaging a 20% reduction.
- Taxon
- barleyHordeum vulgaret0
- Material
- moderately resistant and moderately susceptible linese0
- Treatment
- RWAe1
- Interactor
- RWAe1pest
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 20%e0
- Comparator
- resistant and susceptible linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of moderately resistant and moderately susceptible lines was intermediate and continuous between the resistant and susceptible lines with an average reduction of 20% in grain yield”
t0“Spring Barley”
e1“Plots were artificially infested with RWA”
Claim · model-written summary
Seedling resistance ratings accurately predicted field performance.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- field performancee0
- Value
- accuratelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling resistance ratings accurately predict field performance”
t0“Spring Barley”
The same questions in other papers
infection · yield · Hordeum vulgare (barley)Positive and negative results
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- negative
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See all 22 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.