Claim · model-written summary
Median heading day differed among zones by approximately 4 to 5 days.
- Taxon
- Wheat
Triticum aestivumt0 - Outcome
- median day of year (DOY) for the heading stagee0
- Value
- approximately 4 to 5 dayse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Winter Wheat”
e0“median day of year (DOY) for the heading stage in each zone varies by approximately 4 to 5 days”
Title
Qiang Wu; Xiaoyu Song; Jie Zhang; et al. Remote Sensing 2025. doi:10.3390/rs17223686
Other claims from this paper (9)
- Observation Heading occurred later in northern areas and earlier in southern areas.
- Observation The heading-stage pattern had high interannual stability.
- Method / resource Phenological zoning significantly improved yield-model prediction performance.
- Method / resource The non-zoning model had R2 = 0.46.
- Method / resource The non-zoning model had RRMSE = 13.02%.
- Method / resource The phenological-zone model had R2 of 0.54 to 0.68.
- Method / resource The phenological-zone model had RRMSE below 12.50%.
- Method / resource Phenological zoning yielded more uniform residuals than the other zonings.
- Method / resource Phenological zoning yielded higher prediction stability than other zonings.