Claim · model-written summary
Relatively high potassium was needed for indoleacetic acid to increase total dry weight.
- Taxon
- Red kidney bean plantst0
- Treatment
- indoleacetic-acid treatmente0
- Outcome
- dry weight of total plante0
- Direction
- increasede0
- Qualifier
- Relatively high potassiume0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Verbatim
e0“Relatively high potassium in the nutrient solution was necessary to obtain increased dry weight of total plant by indoleacetic-acid treatment”
t0“Red kidney bean plants”
Title
Combined Effects of Potassium Supply and Growth Substances on Plant Development
Horton M. Laude Botanical Gazette 1941. doi:10.1086/335031
Other claims from this paper (14)
- Intervention effect Plants with different nutrition responded differently to indoleacetic acid.
- Intervention effect At some nutrition levels, indoleacetic acid at 10-9 increased whole-plant dry weight as much as 12.5 per cent.
- Intervention effect Indoleacetic acid significantly increased dry weight at 10-7, 10-8 and 10-9 concentrations.
- Intervention effect Indoleacetic acid did not replace potassium or improve its use under deficiency.
- Intervention effect Indoleacetic acid did not hasten flowering.
- Intervention effect Naphthalene acetamide did not accelerate flower-bud appearance.
- Intervention effect Neither growth substance increased leaves per plant.
- Observation Leaf size varied considerably.
- Association Percentage dry weight rose as potassium decreased.
- Intervention effect Succulence increased only with relatively high indoleacetic acid concentration.
- Intervention effect At lower potassium, naphthalene acetamide produced lower dry weights.
- Intervention effect At 10-6 naphthalene acetamide, root dry weights rose 34-58 per cent.
- Intervention effect At the same naphthalene acetamide concentration, top growth was significantly reduced.
- Observation Primary leaf blades stayed pendant by day as the first visible potassium deficiency symptom.