Claim · model-written summary
Lack of phosphorus and potassium intensified the effect of surplus Fe++.
- Taxon
- Rice Plant
Oryza sativat0 - Treatment
- lack of phosphorus and potassiume2
- Outcome
- such effect of Fe++e2
- Direction
- intensifiede2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nutrition of Rice Plant”
e2“Heavy nitrogen fertilization, lack of phosphorus and potassium, concomitant addition of butyric acid, and low pH of soution intensified such effect of Fe++ as described above”
Title
Isamu BABA; Koichi TAJIMA Japanese Journal of Crop Science 1960. doi:10.1626/jcs.29.47
Other claims from this paper (18)
- Intervention effect Adding surplus Fe++ to the culture solution caused tiny blackish brown spots on the lower leaves.
- Intervention effect Heavy nitrogen fertilization intensified the effect of surplus Fe++.
- Intervention effect Concomitant addition of butyric acid intensified the effect of surplus Fe++.
- Intervention effect Low pH of the solution intensified the effect of surplus Fe++.
- Association Leaf discoloration due to surplus Fe++ was most severe at the vigorously tillering stage and more severe at the booting stage.
- Association Surplus Fe++ caused brown discoloration of grain at the heading and flowering stage.
- Intervention effect Addition of surplus Fe++ at the booting and early ripening stage decreased rice yield extremely.
- Intervention effect Surplus Fe++ decreased rice yield to a lesser extent at the vigorously tillering stage.
- Association Resistance to surplus Fe++ is closely related to starch accumulation at the base of the shoot.
- Association Resistance to surplus Fe++ is generally parallel to Akagare resistance among rice varieties.
- Association Surplus Fe++ inhibited absorption of P2O5, MnO and K2O, in that order.
- Association Surplus Fe++ inhibited absorption of SiO2, NH4-N and CaO, in that order.
- Intervention effect Surplus Fe++ retarded respiratory rate and cytochrome oxidase activity of roots.
- Association Respiratory rate and peroxidase activity of leaf blades were promoted, irrespective of decreased cytochrome oxidase activity.
- Intervention effect Surplus Fe++ decreased the protein-N content of leaves.
- Intervention effect Surplus Fe++ decreased total sugar and starch content in shoots.
- Intervention effect Surplus Fe++ increased soluble-N content.
- Association Excessive ferrous iron may be related to the occurrence of Akagare.