Claim · model-written summary
Cobalt up to 0·01 p.p.m. increased dry weight at 5 p.p.m. manganese.
- Taxon
- Tomato Plant
Solanum lycopersicumt0 - Treatment
- cobalt up to 0·01 p.p.m.e0
- Outcome
- dry weighte0
- Direction
- increasee0
Not reportedComparator
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 and an increase in dry weight”
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. gradually decreased top-leaf chlorosis 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.