Claim · model-written summary
Red kidney bean plants receiving a small amount of copper sulphate weighed the most.
- Taxon
- Red kidney beanse0
- Treatment
- small amount of copper sulphatee2
- Outcome
- dry weighte1
- Direction
- weighed the moste2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Red kidney beans were grown in pure quartz sand with nutrient solution to which were added in separate series Photosensin and the constituents of Photosensin-fluorescein, iron sulphate; sodium bicarbonate, and copper sulphate”
e1“There were no pronounced visible differences among the living plants, and the differences in dry weight were small”
e2“Those plants receiving the small amount of copper sulphate weighed the most”
Title
Effects of Fluorescein and Photosensin on Growth of Red Kidney Beans
Robert K. Zuck Botanical Gazette 1944. doi:10.1086/335275
Other claims from this paper (4)
- Intervention effect Fluorescein apparently does not stimulate growth of red kidney beans.
- Mechanism The stunting effect ascribed to high fluorescein concentrations was actual killing by extensive amounts of sodium bicarbonate.
- Observation No pronounced visible differences appeared among the living red kidney bean plants.
- Observation Differences in dry weight among the red kidney bean treatments were small.