Claim · model-written summary
Rice traits conferring competitiveness are positively correlated across weed competition regimes (r = 0.36–0.81).
- Taxon
- rice
Oryza sativae0 - Treatment
- weed competition regimese7
- Outcome
- traits conferring competitivenesse7
- Direction
- increaseinferrede7
- Value
- r = 0.36–0.81e7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition reduced average rice yield from 32 to 48%, and watergrass biomass from 44 to 77%”
e7“Rice traits conferring competitiveness were correlated across weed competition regimes (r = 0.36–0.81, P < 0.01)”
Title
Relating rice traits to weed competitiveness and yield: a path analysis
Fernando B. Pérez de Vida; Emilio A. Laca; David J. Mackill; et al. Weed Science 2006. doi:10.1614/ws-06-042r.1
Other claims from this paper (9)
- Intervention effect Weed competition reduced average rice yield from 32 to 48% in a greenhouse experiment compared with absence of late watergrass.
- Association Weed competition reduced late watergrass biomass from 44 to 77%.
- Recommendation Enhancing rice weed-suppressive ability and weed tolerance should promote early growth and light-capture traits.
- Association Crop growth rate after heading is a determinant of rice yield (direct path 0.82).
- Association Crop growth rate after heading is correlated with weed tolerance (r = 0.30).
- Association Late biomass accumulation is negatively correlated with harvest index (r = −0.46).
- Association Late biomass accumulation is negatively correlated with CGR during ripening (r = −0.46).
- Observation Cultivar-by-competition and cultivar-by-year interactions are significant for rice.
- Recommendation Selection efficiency for competitive traits would be greater when traits are identified under competition and in different environments.