Effectiveness of Growth Substances in Delaying Abscission of Coleus Petioles

摘要: 1. The relative effectiveness of a number growth substances, both indole and naphthalene derivatives, in delaying leaf abscission Coleus was tested by two methods applying the compounds: aqueous sprays lanolin mixtures applied hand to cut petiole surfaces. 2. In case spray applications maximum reached at approximately 0.05 per cent concentration all compounds, with exception indoleacetic acid, which showed still greater effect 0.1 concentration. most instances also represented approximate effective 3. order various compounds differed considerably application. At methyl indolebutyrate on stubs, whereas application method β-naphthoxyacetic acid proved effective. 4. With a...