Claim · model-written summary
Restricted growth primarily concentrated phosphorus in corn leaves.
- Taxon
- corn
Zea mays subsp. mayse0 - Outcome
- Excessive levels of P in corn leaf tissuee0
- Qualifier
- restricted growthe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive levels of P in corn leaf tissue were primarily the result of concentration of P due to restricted growth.”
Title
Potential for Phosphorus Toxicity in Zinc‐Stressed Corn and Potato
N. W. Christensen; T. L. Jackson Soil Science Society of America Journal 1981. doi:10.2136/sssaj1981.03615995004500050017x
Other claims from this paper (17)
- Association Phosphorus and zinc treatments interacted significantly for corn yield and tissue concentrations.
- Association Phosphorus and zinc treatments interacted significantly for potato yield and tissue concentrations.
- Observation Corn showed zinc deficiency symptoms when phosphorus did not limit growth.
- Intervention effect Corn growth responded to nutrient-solution zinc when phosphorus did not limit growth.
- Observation Corn grown at zero zinc and 3.0 mM phosphorus had 3.39% leaf phosphorus.
- Intervention effect Corn yield at zero zinc and 3.0 mM phosphorus was significantly lower than at 1.0 mM phosphorus.
- Mechanism The authors attributed the corn yield reduction probably to phosphorus toxicity despite no visual symptoms.
- Intervention effect Potato responded to nutrient-solution zinc when phosphorus did not limit growth.
- Observation Potato did not show visual zinc-deficiency symptoms.
- Observation Zinc-deficient potatoes with leaf phosphorus above 2.22% showed probable phosphorus-toxicity symptoms.
- Mechanism In zinc-deficient potato, greater phosphorus movement from roots to shoots contributed to excess leaf phosphorus.
- Mechanism In zinc-deficient potato, greater total phosphorus uptake contributed to excess leaf phosphorus.
- Mechanism In zinc-deficient potato, restricted growth concentrated phosphorus in leaves.
- Mechanism Growth-response dilution reduced tissue zinc concentration in corn and potato.
- Intervention effect Increasing solution phosphorus did not reduce zinc uptake at low zinc supply in either species.
- Mechanism The authors explain apparent phosphorus-induced zinc-deficiency accentuation by toxic phosphorus accumulation.
- Observation The authors suggest potato-like species under zinc stress are more susceptible to phosphorus toxicity.