The author of 《Rooting of shoot cuttings of ornamental shrubs after immersion in auxin-containing solutions》 were Van Bragt, J.; Van Gelder, H.; Pierik, R. L. M.. And the article was published in Scientia Horticulturae (Amsterdam, Netherlands) in 1976. Reference of Potassium 4-(1H-indol-3-yl)butanoate The author mentioned the following in the article:
Shoot cuttings of Berberis hybrido-gagne painii, B. ottawensis, Cotoneaster salicifolia, Lavandula angustifolia Prunus laurocerasus, Pyracantha, and Viburnum plicatum were immersed in a solution of the auxins, IAA K salt (I K salt) [2338-19-4] and IBA K salt [60096-23-3], in water. In general, this treatment gave better rooting than the commonly used method of dipping the basal part of the cutting in a powder mixture containing auxin. After reading the article, we found that the author used Potassium 4-(1H-indol-3-yl)butanoate(cas: 60096-23-3Reference of Potassium 4-(1H-indol-3-yl)butanoate)
Potassium 4-(1H-indol-3-yl)butanoate(cas: 60096-23-3) is auxin-family plant hormone, and is thought to be a precursor of indole-3-acetic acid (IAA) the most abundant and the basic auxin natively occurring and functioning in plants. IAA generates the majority of auxin effects in intact plants, and is the most potent native auxin.Reference of Potassium 4-(1H-indol-3-yl)butanoate
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles