Claim · model-written summary
Booting heat reduced panicle dry matter partitioning index.
- Taxon
- rice
Oryza sativat0 - Treatment
- Heat stress at bootinge0
- Outcome
- DMPI in paniclese0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heat stress at booting decreased DMPI in panicles, increased DMPI in stems, but had no significant effect on photosynthetic rate.”
t0“rice”
Title
Fengxian Zhen; Junjie Zhou; Aqib Mahmood; et al. The Crop Journal 2019. doi:10.1016/j.cj.2019.07.002
Other claims from this paper (18)
- Intervention effect Greater heat intensity and duration significantly reduced grain yield.
- Intervention effect Greater heat intensity and duration suppressed spikelet number per panicle.
- Intervention effect Greater heat intensity and duration suppressed seed-setting rate.
- Intervention effect Greater heat intensity and duration suppressed grain weight.
- Intervention effect Booting heat increased stem dry matter partitioning index.
- Intervention effect Booting heat had no significant effect on photosynthetic rate.
- Intervention effect Heat increased stem nonstructural carbohydrate concentration.
- Intervention effect Heat decreased panicle nonstructural carbohydrate concentration.
- Intervention effect Heat decreased stem carbohydrate translocation efficiency.
- Intervention effect Heat decreased the contribution of stem carbohydrates to grain yield.
- Intervention effect Severe heat turned the stem into a carbohydrate sink during grain filling.
- Observation Heat-tolerant Wuyunjing 24 had higher NSC transport capacity than heat-sensitive Nanjing 41 under heat.
- Observation The heat degree-day threshold for NSC translocation termination was 9.82 °C day.
- Association Grain yield was negatively correlated with stem NSC concentration at maturity.
- Association Grain yield was negatively correlated with stem NSC accumulation at maturity.
- Association Yield reduction was tightly related to reduced NSC translocation.
- Mechanism Authors infer that reduced sink size explains inhibited NSC translocation after booting heat.
- Recommendation Authors suggest selecting higher NSC transport capacity under heat to benefit rice yield formation.