Claim · model-written summary
The near isogenic lines had 2 to 7% lower mean grain weight.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- mean grain weighte0
- Direction
- reductione0
- Value
- 2 to 7%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower grain yield resulted from a 3 to 11% reduction in grain number per square meter and a 2 to 7% reduction in mean grain weight.”
t0“Winter Wheat”
Title
Leaf Rust Resistance Gene Lr9 and Winter Wheat Yield Reduction: I. Yield and Yield Components
Silvano Ortelli; Hans Winzeler; Michael Winzeler; et al. Crop Science 1996. doi:10.2135/cropsci1996.0011183x003600060030x
Other claims from this paper (10)
- Observation The Lr9 near isogenic lines were phenotypically very similar to Arina.
- Observation Aboveground dry matter was similar for the near isogenic lines and Arina at anthesis and medium milk stage.
- Observation Dry matter accumulation diverged only after the medium milk stage.
- Observation At maturity, the near isogenic lines yielded 12% less grain than Arina, with a 5 to 14% range.
- Observation The near isogenic lines had 3 to 11% fewer grains per square meter.
- Observation The smaller grain number was associated with 6% fewer tillers per plant.
- Observation The smaller grain number was associated with 2% fewer grains per ear.
- Mechanism Reducing grains per ear suggested that reduced assimilate supply contributes to lower yield in the near isogenic lines.
- Mechanism Reducing grains per ear suggested that diminished capacity to incorporate assimilates in grain contributes to lower yield.
- Association Small differences among Lr9 lines suggested a direct relationship between yield depression and Lr9 resistance.