Browsing by Author "Chingo Morocho, Karen Lisbeth"

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    Aclimatación y enraizamiento ex vitro de plántulas de arándano (Vaccinium corymbosum) con la utilización de hormonas
    (Universidad Técnica de Cotopaxi (UTC). La Mana. Agronomía, 2026-10-29) Arias Bacilio, Ana Katherine; Chingo Morocho, Karen Lisbeth; Quinatoa Lozada, Eduardo Fabián
    Blueberry (Vaccinium corymbosum L.) is a fruit species of growing economic importance due to the high demand for fruits with a high content of bioactive compounds and functional properties. However, the acclimatization stage is one of the main problems in micropropagation programs, as the vitroplants are especially susceptible during the transition from in vitro to ex vitro conditions. Objective: To evaluate the effect of different hormonal treatments on ex vitro rooting and acclimatization of Biloxi blueberry seedlings. Methodology: A randomized design was used with four treatments: indole-3-butyric acid (IBA, 0.8%), naphthaleneacetic acid (ANA, 0.4%), the combination of IBA and ANA, and a control group without hormones, with ten repetitions for each treatment. The percentage of mortality, growth index, number of leaves, root length, number of shoots, and relative chlorophyll content (SPAD) were evaluated. Results: For most of the morphological variables, significant statistical differences were found. The treatment with IBA promoted the greatest vegetative growth (greater height, number of leaves, and shoots) and the greatest root development (root length of 31.35 mm). Mortality was lower than IBA (10%). The chlorophyll content did not show significant differences between treatments. Conclusions: Using IBA at 0.8% was the most effective treatment for improving rooting outside the greenhouse and the initial growth of micropropagated blueberry plants. This represents a technological option to improve acclimatization methods and the commercial production of high-quality plants.