Claim · model-written summary
Cobalt up to 0·01 p.p.m. gradually decreased top-leaf chlorosis at 5 p.p.m. manganese.
- Taxon
- Tomato Plant
Solanum lycopersicumt0 - Treatment
- cobalt up to 0·01 p.p.m.e0
- Outcome
- chlorosis of the top leavese0
- Direction
- decreasee0
- Qualifier
- graduale0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the addition of cobalt up to 0·01 p.p.m. brought about a gradual decrease in the chlorosis of the top leaves”
t0“Tomato Plant”
Title
The Relative Toxicity of Manganese and Cobalt to the Tomato Plant
M. BAKR AHMED; E. S. TWYMAN Journal of Experimental Botany 1953. doi:10.1093/jxb/4.2.164
Other claims from this paper (7)
- Intervention effect At equivalent concentrations, cobalt induced more chlorosis and necrosis than manganese.
- Observation Chlorotic plants with cobalt or manganese toxicity contained at least as much iron as normal plants.
- Intervention effect Chlorotic leaves responded positively to ferrous sulphate painting.
- Intervention effect At 5 p.p.m. manganese, lower leaves were injured regardless of cobalt supply.
- Intervention effect Cobalt up to 0·01 p.p.m. increased dry weight at 5 p.p.m. manganese.
- Intervention effect Cobalt at 0·1 p.p.m. caused severe chlorosis, necrosis, and stunted growth.
- Intervention effect Raising manganese to 5·0 p.p.m. substantially antidoted cobalt toxicity.