Claim · model-written summary
High ammonium nitrate had no adverse effect on tomato root dry weight.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- high ammonium nitrate concentrationse1
- Outcome
- root dry weighte1
- Direction
- no adverse effecte1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Meloidogyne incognita were exposed to different concentrations of ammonium ions in a nutrient agar medium upon which excised tomato roots were growing.”
e1“There was no adverse effect from the high ammonium nitrate concentrations or an equivalent potassium nitrate concentration on root dry weight.”
Title
Sudirman; J M Webster PubMed 1995
Other claims from this paper (7)
- Intervention effect High ammonium nitrate slowed or inhibited M. incognita egg hatch, unlike low concentrations.
- Intervention effect High ammonium nitrate slowed or inhibited J2 penetration of tomato roots, unlike low concentrations.
- Observation The ammonium effect on J2 appeared temporary and reversible.
- Intervention effect High potassium nitrate did not modify egg hatch.
- Intervention effect High potassium nitrate did not modify J2 penetration.
- Intervention effect An equivalent potassium nitrate concentration had no adverse effect on tomato root dry weight.
- Mechanism Ammonium ions influence nematodes directly and through plant roots independently of microbes.