Claim · model-written summary
Reduced nitrogen rate significantly reduced root length, surface area, volume and biomass.
- Taxon
- rice
Oryza sativae1 - Treatment
- reduced N ratee0
- Outcome
- root length, surface area, volume, and biomasse0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduced N rate led to significantly reduced root length, surface area, volume, and biomass”
e1“rice (Oryza sativa L.)”
Title
Jin Chen; Xiangcheng Zhu; Jiang Xie; et al. The Crop Journal 2020. doi:10.1016/j.cj.2020.09.006
Other claims from this paper (12)
- Intervention effect Reduced nitrogen with dense planting maintained yield, biomass and plant nitrogen uptake relative to conventional practice.
- Intervention effect RNHD increased agronomic nitrogen use efficiency by 23.3% to 31.9%.
- Intervention effect RNHD increased nitrogen recovery efficiency by 17.4% to 24.1%.
- Intervention effect RNHD increased fertilizer 15N recovery rate by 14.5% to 34.7%.
- Intervention effect RNHD reduced 15N retention rate by 9.2% to 12.0%.
- Intervention effect Higher planting density significantly increased root length, surface area, volume and biomass.
- Intervention effect RNHD did not affect root morphological traits.
- Intervention effect RNHD reduced nitrate reductase activity only at tillering.
- Intervention effect RNHD reduced glutamine synthetase activity only at tillering.
- Association Plant nitrogen uptake was significantly positively correlated with root traits.
- Association Plant nitrogen uptake was not correlated with nitrate reductase and glutamine synthetase activities.
- Mechanism The authors conclude dense planting maintains root growth and nitrogen uptake under reduced nitrogen, improving nitrogen use efficiency.