Claim · model-written summary
At Chillicothe, newly released cultivars headed 2.9 days earlier every 10 years versus 0.6 days for Kharkof.
- Taxon
- winter wheat
Triticum aestivumt0 - Material
- newly released cultivarse0
- Outcome
- heading datese0
- Direction
- earliere0
- Value
- 2.9 dayse0
- Qualifier
- 0.6 dayse0
- Comparator
- Kharkofe0
- Setting
- Chillicothe, Texase0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“heading dates of newly released cultivars were 2.3 and 2.9 days earlier every 10 years compared to 1.6 and 0.6 days for Kharkof at Bushland and Chillicothe, Texas, respectively”
t0“winter wheat”
Title
Climate change effect on winter wheat ( Triticum aestivum L.) yields in the US Great Plains
B.A. Stewart; S. Thapa; Q. Xue; et al. Journal of Soil and Water Conservation 2018. doi:10.2489/jswc.73.6.601
Other claims from this paper (11)
- Observation Wheat grain yields increased in every subarea until the early 1980s.
- Observation Since 1990, North Central Texas wheat grain yields decreased.
- Observation Since 1990, Oklahoma wheat grain yields remained somewhat steady.
- Observation Kansas wheat grain yields trended upward.
- Observation Nebraska, South Dakota, and North Dakota wheat yields increased significantly.
- Observation Annual temperatures increased in all subareas, especially northern subareas.
- Observation At Bushland, newly released cultivars headed 2.3 days earlier every 10 years versus 1.6 days for Kharkof.
- Mechanism The authors infer that earlier heading likely decreases yield through a shorter grain filling period.
- Mechanism The authors attribute increased northern yields to warmer temperatures reducing winter killing and adding growing degree days.
- Observation Rising temperatures appear to make southern Great Plains winter wheat production more challenging.
- Observation Rising temperatures appear to make northern Great Plains winter wheat production more favorable.