Claim · model-written summary
Leaf 15N abundance was higher than root abundance.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- leavese0
- Outcome
- 15N abundance of leavese0
- Direction
- highere0
- Comparator
- roote0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 15N abundance of leaves is noticeably higher than that of root”
t0“Effects of nitrogen rate on nitrogen loss from rice plant tissue”
Title
Effects of nitrogen rate on nitrogen loss from rice plant tissue
Wang Qiao-lan; Lishu Wu; Zhuqing Zhao; et al. Plant Nutrition and Fertilizing Science 2010
Other claims from this paper (14)
- Intervention effect Rice biomass did not change significantly among nitrogen rates over ten days.
- Association Leaf and root nitrogen contents increased with nitrogen level.
- Association Leaf and root 15N abundance decreased as nitrogen level increased.
- Intervention effect Plant nitrogen absorption increased under high nitrogen treatment.
- Mechanism The authors infer nitrogen transfer from roots to leaves from dilution of previously absorbed 15N.
- Intervention effect N deficiency(N 0 mg/L) increased nitrogen loss from rice.
- Intervention effect over N supply(N 160 mg/L) increased nitrogen loss from rice.
- Intervention effect N supply at 80 mg/L increased nitrogen utilization.
- Association Rice growth stage affected nitrogen loss rate.
- Association At 80 mg/L nitrogen, loss from rice increased from 11.6% to 22.3% as growth period advanced.
- Association NH+4-N contents and GOT activities increased with nitrogen amount.
- Association Rice leaf pH increased with nitrogen amount.
- Mechanism The authors attribute lower nitrogen use efficiency to nitrogen loss from rice tissue.
- Mechanism The authors suggest ammonia volatilization may explain some nitrogen loss from rice tissue.