TECHNOLOGIES FOR VEGETATIVE PROPAGATION AND SEEDLING PRODUCTION OF MARANHÃO CHESTNUT (Pachira aquatica)
DOI:
https://doi.org/10.63330/aurumpub.037-003Keywords:
Pachira aquatica, Growth regulators, CuttingsAbstract
Pachira aquatica, known as "castanha-do-maranhão," has high nutritional value and potential for the food industry, although it remains underutilized due to the lack of consolidated cultivation protocols. In this context, the present study aimed to evaluate the efficiency of vegetative propagation by cuttings associated with the use of growth regulators in seedling production of the species. The experiment was conducted in a nursery in Imperatriz-MA, under a completely randomized design, with five treatments: control, indole-3-butyric acid (IBA) at doses of 1000 mg·L⁻¹ and 2000 mg·L⁻¹, rooting gel, and gibberellic acid (GA₃) at a dose of 20 mg·L⁻¹. Evaluations were performed after 60 days. Results indicated that growth regulators did not promote significant differences in stem length and diameter (p>0.05). However, the treatment with gibberellic acid stood out by presenting the highest rooting rate (30%) and greatest leaf production (17 leaves), surpassing the other treatments, which showed lower performance and revealed variations in the physiological response of the cuttings. It is concluded that propagation by cuttings of the species still presents limitations regarding initial stem development; however, the use of gibberellic acid shows potential to stimulate rooting, highlighting the need for further studies with longer experimental periods and larger sample sizes to consolidate efficient techniques for sustainable seedling production of the species.
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