Effect of Growth Hormones Iba and Naa on the propagation by cutting of the mamey crop (Mammea americana L.)

Autores

Tito Rigoberto Solis Barros Quevedo State Technical University. Faculty of Livestock and Biological Sciences. Quevedo, Los Ríos, Ecuador.
Ronald Oswaldo Villamar-Torres Universidad Técnica Estatal de Quevedo https://orcid.org/0000-0003-2511-1789
Aurelio David Zapatier Santillan Quevedo State Technical University. Faculty of Livestock and Biological Sciences. Quevedo, Los Ríos, Ecuador
Odalys Morán Maffare Quevedo State Technical University. Faculty of Livestock and Biological Sciences. Quevedo, Los Ríos, Ecuador
Seyed Mehdi Jazayeri Quevedo State Technical University. Faculty of Livestock and Biological Sciences. Quevedo, Los Ríos, Ecuador.

Palavras-chave:

vegetative propagation, root development, rooting, shoots.

Resumo

This study examined the impact of concentrations of Indole Butyric Acid (IBA) and Naphthaleneacetic Acid (NAA) on the vegetative propagation of (Mammea americana L.) cuttings. A field trial was conducted in the Los Ríos province, Ecuador, using a completely randomized design (CRD) with five treatments and four replications. Treatments included different doses of IBA and NAA: T1 (no hormones), T2 (1500 mg/L), T3 (2000 mg/L), T4 (2500 mg/L), and T5 (3000 mg/L). Five parameters were evaluated: number of shoots, root length, rooting percentage, mortality percentage, and number of roots at 45, 52, and 60 days after transplantation. Results indicated that treatment T5 (3000 mg/L IBA + 3000 mg/L NAA) exhibited the best performance in terms of shoot number, length, and root development, significantly outperforming other treatments. No significant differences were observed in rooting and mortality among treatments. It is concluded that the combined application of 3000 mg/L IBA and 3000 mg/L NAA effectively promotes root and shoot development in mamey cuttings. These findings support the use of IBA and NAA in the vegetative propagation of mamey and other related agronomic crops.

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