Claim · model-written summary
Higher nitrogen increased foliar solanine by 35%.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- higher nitrogen application ratee0
- Outcome
- field foliar levels of the alkaloids solaninee0
- Direction
- increasede0
- Value
- 35%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The higher nitrogen application rate increased field foliar levels of the alkaloids solanine by 35%”
t0“potato plant”
Title
Christine A. Armer; Ralph E. Berry; Gary L. Reed; et al. Entomologia Experimentalis et Applicata 2004. doi:10.1111/j.0013-8703.2004.00152.x
Other claims from this paper (10)
- Association Nematodes tended to reproduce more readily in beetles fed high-fertilizer potato plants in the lab.
- Intervention effect Higher nitrogen increased foliar chaconine by 41%.
- Intervention effect Nematode applications reduced adult beetle populations by 50%.
- Intervention effect Treated soil samples had six times as many dead beetle prepupae.
- Observation No reproducing nematodes occurred in 303 dead prepupae and pupae from treated plots.
- Intervention effect Nitrogen fertilizer did not affect nematode infection or reproduction in field trials.
- Observation Growth-chamber foliage had 3–6-fold higher alkaloids than field foliage.
- Observation H. marelata did not harm the endemic beetle control agent Myiopharus doryphorae.
- Observation The authors conclude low nematode reproduction cannot be manipulated through beetle alkaloid stress.
- Recommendation The authors conclude H. marelata is not commercially viable until inexpensive mass production is possible.