Claim · model-written summary
When nitrate N exceeded 50% of the N supply, physiological and metabolic indexes in rice decreased significantly.
- Taxon
- rice
Oryza sativae1 - Treatment
- proportion of nitrate Ne1
- Outcome
- physiological and metabolic indexese1
- Direction
- decreased significantlye1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“However, when the proportion of nitrate Nwas higher than 50%,the physiological and metabolic indexes decreased significantly and the growth of rice seedlingswas inhibited”
Title
Sun Yuan-yua Ganhan diqu nongye yanjiu 2013
Other claims from this paper (12)
- Intervention effect Under normal water, a moderate decrease in the ammonium/nitrate ratio to 50:50 increased nitrate content in rice leaves and roots.
- Intervention effect Under normal water, the 50:50 ammonium/nitrate ratio did not affect net photosynthetic rate in rice.
- Intervention effect When nitrate N exceeded 50% of the N supply, growth of rice seedlings was inhibited.
- Intervention effect Under moderate water stress, the 50:50 ratio increased net photosynthetic rate of the top three rice leaves compared with normal water and 100% ammonium N.
- Intervention effect Under moderate water stress, the 50:50 ratio promoted accumulation of compatible osmolytes in rice compared with normal water and 100% ammonium N.
- Intervention effect Under moderate water stress, the 50:50 ratio improved nitrogen uptake in rice compared with normal water and 100% ammonium N.
- Intervention effect Under moderate water stress, the 50:50 ratio boosted growth of rice seedlings compared with normal water and 100% ammonium N.
- Association Under moderate water stress, rice genotypes differed significantly in their responses to increasing nitrate N.
- Association Indica rice was superior to japonica rice in net photosynthetic rate and nitrogen use efficiency.
- Association Hybrid indica rice was superior to inbred indica rice in net photosynthetic rate and nitrogen use efficiency.
- Association Japonica upland rice was better than japonica paddy rice in net photosynthetic rate and nitrogen use efficiency.
- Association No difference in drought tolerance was observed within the same rice genotype.