Claim · model-written summary
Yield decreased when nitrogen content and top weight were outside optimal values.
- Taxon
- Lowland Ricet0
- Outcome
- grain yielde0
- Direction
- decreasede0
- Qualifier
- larger or smaller than the optimal valuese0
- Comparator
- optimal valuese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValue
Verbatim
e0“the nitrogen content and the top weight being larger or smaller than the optimal values indicated above, the grain yield decreased.”
t0“Lowland Rice”
Title
Akio MATSUZAKI; Seizo MATSUSHIMA; Toyoo TOMITA Japanese Journal of Crop Science 1974. doi:10.1626/jcs.43.167
Other claims from this paper (8)
- Association Two leaf nitrogen and top weight combinations brought the highest yield.
- Association The second leaf nitrogen and top weight combination also brought highest yield.
- Association The leaf color ratio and tiller combination produced maximum grain yield.
- Mechanism Excess leaf nitrogen or top dry weight decreased the percentage of ripened grains and hence yield.
- Mechanism Lodging attributed to fifth internode length caused reduced grain ripening.
- Recommendation Authors recommended a leaf color ratio of 0.05∼0.08 or leaf blade nitrogen of 2.2∼2.6%.
- Recommendation Authors recommended 500∼700 tillers per square meter or top dry weight of 500∼600 g/m2.
- Recommendation Authors recommended fifth internode length below 4 cm.