Claim · model-written summary
Cultivar shifts influenced NUE through a higher grain share of photosynthetic products and harvest index.
- Taxon
- rice
Oryza sativae0 - Material
- cultivar shiftse0
- Organ / stage
- rice graine0
- Outcome
- NUEe0
- Direction
- increasee0
- Qualifier
- harvest indexe0
Not reportedGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of cultivar shifts on NUE is mainly determined by the increase in the proportion of photosynthetic products in the rice grain and thus the harvest index”
Title
Xinjie Ju; Xin Liu; Wenjun Jiang; et al. Global Change Biology 2025. doi:10.1111/gcb.70316
Other claims from this paper (9)
- Observation National single rice NUE was 0.31 over 1978–2019.
- Observation Single rice NUE rose slightly before 2005.
- Observation Single rice NUE rose by 0.048 per decade after 2005.
- Mechanism Fertilization management and cultivar shifts primarily controlled NUE trends.
- Mechanism N application rate determined total N input and affected N uptake and utilization efficiency and NUE.
- Observation Cultivar improvement contributed 0.034 per decade to NUE before 2005.
- Intervention effect Excess N fertilizer use offset NUE gains by -0.029 per decade before 2005.
- Observation Cultivar improvement benefits fell to 0.021 per decade after 2005 and were unstable in many subregions.
- Recommendation The authors recommend rice breeding improvements to meet future NUE challenges.