Claim · model-written summary
A priming response from the pre-anthesis heat wave is suggested to mitigate the impact of the post-anthesis heat wave.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- impact of subsequent stresse2
- Qualifier
- priming responsee2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e2“prior HW exposure inducing a priming response that mitigated the impact of subsequent stress through antagonistic interactions between the two events”
Title
Jinwook Kim; Breno Bicego; Gustavo A. Slafer; et al. Field Crops Research 2026. doi:10.1016/j.fcr.2025.110310
Other claims from this paper (14)
- Observation Average grain weight was consistently higher in Pistolo than in Sublim.
- Observation The distribution of individual grain sizes was higher in Pistolo.
- Observation The lightest and heaviest decile grains were significantly heavier in Pistolo.
- Mechanism The higher AGW of Pistolo is attributed mainly to its higher rate of grain growth.
- Observation Grain growth duration was similar between Pistolo and Sublim.
- Observation Pistolo had a higher potential grain weight than Sublim.
- Intervention effect Post-anthesis heat wave reduced AGW, and Pistolo was more sensitive than Sublim.
- Intervention effect Combined pre- and post-anthesis heat waves reduced AGW less than post-anthesis heat wave alone.
- Intervention effect Varying source-sink ratios under heated conditions did not noticeably change grain weight.
- Observation The GN–AGW trade-off was not due to limited resources or more small grains.
- Intervention effect Thinning reduced the post-anthesis heat wave penalty on AGW.
- Intervention effect De-graining partially reversed the heat wave effects on grain weight.
- Mechanism Heat waves likely affected AGW through direct growth-capacity and indirect assimilate-supply mechanisms.
- Recommendation The authors recommend breeding for traits related to grain growth resilience.